US3419151A - Strainer bag construction - Google Patents
Strainer bag construction Download PDFInfo
- Publication number
- US3419151A US3419151A US594619A US59461966A US3419151A US 3419151 A US3419151 A US 3419151A US 594619 A US594619 A US 594619A US 59461966 A US59461966 A US 59461966A US 3419151 A US3419151 A US 3419151A
- Authority
- US
- United States
- Prior art keywords
- bag
- strainer
- felt
- muslin
- strainer bag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010276 construction Methods 0.000 title description 7
- 239000000835 fiber Substances 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 229920004934 Dacron® Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000000837 restrainer Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/111—Making filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/23—Supported filter elements arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/23—Supported filter elements arranged for outward flow filtration
- B01D29/27—Filter bags
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/28—Position of the filtering element
- B01D2201/287—Filtering elements with a vertical or inclined rotation or symmetry axis
Definitions
- a strainer bag made of fabricated flat felt, the bag having an open end and a rounded bottom to provide a substantially stress-free strainer bag when it is operating as a strainer. Also the bag may have an outer retainer jacket which is larger than the original circumference of the bag.
- This invention relates to removable strainer bags and particularly those having an arcuate-like or rounded bottom end, the strainer media being of mechanically interlocked felt.
- strainer bags have been rectangularly shaped with different configurations, such as being neckedin at the top and being made of a plurality of pieces. Usually, the bags have been tied onto the feed pipe. The bags must be strong enough so that optimum hydrostatic pressure can be used so as to provide optimum straining cycles. Also, bag combinations are needed to provide such cycles. Prior arrangements and bags have required frequent and expensive replacement and have not been satisfactory.-
- One of the objects of the present invention is to provide a strainer bag of optimum shape or strength characteristics.
- a further object of the invention is to provide a strainer bag having restraining means of selected dimensions for optimum efliciency and construction.
- the strainer bag is made of one piece of felt which can be fabricated flat with a rounded-like bottom end, the rounded or curved bottom profile having chords located on a bias relative to the sides.
- the seams preferably are overlapped and the vertical seam extends to the bottom of the bottom end or bisects the angle thereof.
- the biased bottom end portions can have a slightly convex curve therein.
- the seams preferably are sewn with a plurality of rows of threads.
- the felt preferably is composed of mechanically interlocked man-made fibers.
- the fibers may be of nylon, rayon, polypropylene, the polyester sold under the trademark Dacron of Du Pont or the acrylic fiber sold under the trademark Orion of Du Pont. Natural fibers also could be used. They can be chosen to produce a series of bags of felt calibrated as described in copending application Ser. No. 637,310, filed Nov. 2, 1966, in order to provide optimum strainer media which can separate or classify particles effective in the to 200 micron range.
- the bags can have attachment means such as described in copending application Ser. No. 599,661, filed Nov. 15, 1966.
- the felt bag can be enclosed in a muslin bag of selected dimensions or can be put into a wire basket.
- the bags can be used in conjunction with pressure vessels.
- FIG. 1 shows a piece of felt for producing the bag of the present invention
- FIG. 2 is a fragmentary view of the upper portion of the felt bag with the side seam completed
- FIG. 3 shows the felt of FIG. 2 with the vertical seam arranged to extend to the center of the rounded bottom end;
- FIG. 4 is similar to FIG. 3 except that the vertical seam is at the side;
- FIG. 5 shows the strainer bag in place on a holder and illustrates fluid flowing therefrom
- FIG. 6 shows another arrangement of the strainer bag with an outer muslin holder
- FIG. 7 shows the strainer bag within a wire basket and vessel
- FIG. 8 shows the cloth of FIG. 1 cut to form the arrangement of FIG. 3;
- FIG. 9 shows one form of attachment means at the upper end of the bag
- FIG. 10 is a graph showing the relation of burst strength and seams
- FIG. 11 is a graph showing the relation of burst strength to the angle between a line or chord forming the lower portion of the rounded bottom end and the intersection of the bottom end with the sides;
- FIG. 12 is a fragmentary view of a further embodiment.
- FIG. 13 is a graph showing the relation between the bursting strength and the relation of initial sizes of the bag and the muslin jacket therefor.
- the bag preferably is made of a single piece 10 of mechanically locked or needled felt.
- the felt also could have a woven insert as described in the patent to Gates, No. 2,588,228.
- FIG. 3 wherein the piece of felt is cut as shown in FIG. 8.
- Vertical seam 11 extends from the top or open end of the bag to the intersection 12 of the chords or edges 13 of the rounded bottom end 14 of the bag.
- the edges 13 have sewn seams.
- the vertical seam 15 also could be made at the side as seen in FIG. 4.
- the bottom is rounded to produce a stress-free bag utilizing of the inherent strength of the material from which it is made. If the bottom is made on the bias with a slight convex curve, a stress-free bag is produced. It was found that if the angle between the sides and a chord to the bottom is made between 32 and 45, the optimum limit pressure results were attained as can be seen in FIG. 11.
- the seams are overlapped and a plurality of rows of stitches employed.
- the distance between rows of stitches and distance between rows can be made:
- the bag can be suspended from a holding plate 14 which has a fluid supply pipe 12 thereto.
- the upper open end 16 can have a hem 17 (FIGS. 5, 9) with a flexible hoop 18 sewn therein.
- the holding plate 14 has a flange or ledge 19 for receiving the open end of the bag in assembled relation. Details of the holding means are shown in copending application Ser. No. 599,661, filed Nov. 15, 1966.
- the liquid passing through the strainer bag is guided to form a central stream 20 as seen in FIG. 5. This will prevent undesirable splashing and facilitate the collection point. If the end is square, the liquid will be irregular in its flow and will tend to flow from the corners which is not desirable.
- An extension 25 (FIG. 12.) can be used further to concentrate or direct flow from the bottom or center of the strainer.
- a muslin outer container or restrainer can be used as seen in FIG. 9.
- the muslin 21 can be used to enclosed bag 22 and support it at its top end as seen in FIG. 9.
- the felt bag will tend to expand.
- the muslin tends to restrain such expansion so that a greater pressure can be used, such being possible up to the point the muslin bursts.
- the muslin should be 1% larger and at 22 p.s.i. 2%" larger, 16 p.s.i. and 22 p.s.i. being the burst pressure when the muslin is made 1%" and 2%" larger than the felt bag.
- 16 p.s.i. and 22 p.s.i. being the burst pressure when the muslin is made 1%" and 2%" larger than the felt bag.
- the bag circumference should be 11% inches in order to reach a 22 psi. break point.
- the strainer is surrounded by a vessel 23 having an outlet 24.
- strainer 26 (FIG. 7) can be held in a wire basket 27 which is supported on ledge 28 of the walls 29 of vessel 30.
- strainer described herein also could be placed in various types of pressure vessels (not shown).
- bottom edges could follow a chord without substantial curvature and the term rounded bottom includes such an arrangement.
- a strainer bag of felt having a substantially cylindrical upper portion with an open upper end, a slightly convex lower portion, a vertical seam in said upper portion extending to said covex lower portion, said lower portion having a seam extending from the side edges adjacent the bottom of the cylindrical portion across the lower portion through the apex thereof, said lower portion being so constructed and arranged that a line drawn from the apex to the intersection of the cylindrical and convex portions is between about 32 and 45, said seams being interconnected to form the felt into a unitary strainer bag, and an attachment means surrounding said open end.
Description
Dec. 31, 1968 E. A. SMITH ETAL 3,419,151
STRAINER BAG CONSTRUCTION Filed Nov. 15, 1966 Sheet SLU RRY INVENTORS E D WA D A. 5M ITH ARTHUR C WROTNOWSKI ATTORNEYS Dec. 31, 1968 E. A. SMITH ETAL STRAINER BAG CONSTRUCTION Sheet 2 of 4 Filed Nov. 15. 1968 W oM ATTORNEYS Dec. 31, 1968 E. A. SMITH ETAL 3,419Ql51 STRAINER BAG CONSTRUCTION Filed Nov. 15, 1966 Sheet .3 of 4 THREAD USED B67 NYLON p.51. BURST l l l I I l l l l o 1 a 9|Ol| lalsmlsl's |7|e|s STITCHES/INCH VERTICAL sEAM STRENGTH TEST FIG.IO
RS. I. BURsT I I I BOTTOM SHAPE PRESSURE TEST FIG.H
INVENTORS EDWARD A. SMITH ARTHUR C.WRO TNOW$K| 4m zn/m.
ATTORNEYS Dec. 31, 1968 Filed Nov. 15, 1966 PS. I.
INITIAL BAG CIRC.
E. A. SMITH ETAL STRAINER BAG CONSTRUCTION Sheet MUSLiN CIRC.
(BREAK uNE) FLAT H CIRC. 22
{3. I S INCHES INVENTORS EDWARD A. 5M ITH ARTHUR c. WROTNOWSKI BY A TTOR/VEYS United States Patent 3,419,151 STRAINER BAG CONSTRUCTION Edward A. Smith, Glenville, and Arthur C. Wrotnowski,
Greenwich, 'Conn., assignors to American Felt Company, Glenville, Conn., a corporation of Massachusetts Filed Nov. 15, 1966, Ser. No. 594,619 1 Claim. (Cl. 210460) ABSTRACT OF THE DISCLOSURE A strainer bag made of fabricated flat felt, the bag having an open end and a rounded bottom to provide a substantially stress-free strainer bag when it is operating as a strainer. Also the bag may have an outer retainer jacket which is larger than the original circumference of the bag.
This invention relates to removable strainer bags and particularly those having an arcuate-like or rounded bottom end, the strainer media being of mechanically interlocked felt.
In the prior art, strainer bags have been rectangularly shaped with different configurations, such as being neckedin at the top and being made of a plurality of pieces. Usually, the bags have been tied onto the feed pipe. The bags must be strong enough so that optimum hydrostatic pressure can be used so as to provide optimum straining cycles. Also, bag combinations are needed to provide such cycles. Prior arrangements and bags have required frequent and expensive replacement and have not been satisfactory.-
One of the objects of the present invention is to provide a strainer bag of optimum shape or strength characteristics.
A further object of the invention is to provide a strainer bag having restraining means of selected dimensions for optimum efliciency and construction.
In one aspect of the invention, the strainer bag is made of one piece of felt which can be fabricated flat with a rounded-like bottom end, the rounded or curved bottom profile having chords located on a bias relative to the sides. The seams preferably are overlapped and the vertical seam extends to the bottom of the bottom end or bisects the angle thereof. The biased bottom end portions can have a slightly convex curve therein. The seams preferably are sewn with a plurality of rows of threads.
The felt preferably is composed of mechanically interlocked man-made fibers. The fibers may be of nylon, rayon, polypropylene, the polyester sold under the trademark Dacron of Du Pont or the acrylic fiber sold under the trademark Orion of Du Pont. Natural fibers also could be used. They can be chosen to produce a series of bags of felt calibrated as described in copending application Ser. No. 637,310, filed Nov. 2, 1966, in order to provide optimum strainer media which can separate or classify particles effective in the to 200 micron range. The bags can have attachment means such as described in copending application Ser. No. 599,661, filed Nov. 15, 1966.
In a further aspect, the felt bag can be enclosed in a muslin bag of selected dimensions or can be put into a wire basket. The bags can be used in conjunction with pressure vessels.
These and other objects, advantages and features of the invention will become apparent from the following description and drawings which are merely exemplary.
In the drawings:
FIG. 1 shows a piece of felt for producing the bag of the present invention;
FIG. 2 is a fragmentary view of the upper portion of the felt bag with the side seam completed;
3,419,151 Patented Dec. 31, 1968 FIG. 3 shows the felt of FIG. 2 with the vertical seam arranged to extend to the center of the rounded bottom end;
FIG. 4 is similar to FIG. 3 except that the vertical seam is at the side;
FIG. 5 shows the strainer bag in place on a holder and illustrates fluid flowing therefrom;
FIG. 6 shows another arrangement of the strainer bag with an outer muslin holder;
FIG. 7 shows the strainer bag within a wire basket and vessel;
FIG. 8 shows the cloth of FIG. 1 cut to form the arrangement of FIG. 3;
FIG. 9 shows one form of attachment means at the upper end of the bag;
FIG. 10 is a graph showing the relation of burst strength and seams;
FIG. 11 is a graph showing the relation of burst strength to the angle between a line or chord forming the lower portion of the rounded bottom end and the intersection of the bottom end with the sides;
FIG. 12 is a fragmentary view of a further embodiment; and
FIG. 13 is a graph showing the relation between the bursting strength and the relation of initial sizes of the bag and the muslin jacket therefor.
Referring to FIG. 1, the bag preferably is made of a single piece 10 of mechanically locked or needled felt. The felt also could have a woven insert as described in the patent to Gates, No. 2,588,228.
The preferred form is shown in FIG. 3 wherein the piece of felt is cut as shown in FIG. 8. Vertical seam 11 extends from the top or open end of the bag to the intersection 12 of the chords or edges 13 of the rounded bottom end 14 of the bag. The edges 13 have sewn seams. The vertical seam 15 also could be made at the side as seen in FIG. 4.
By making the bag of a single piece, instead of two pieces, the bottom is rounded to produce a stress-free bag utilizing of the inherent strength of the material from which it is made. If the bottom is made on the bias with a slight convex curve, a stress-free bag is produced. It was found that if the angle between the sides and a chord to the bottom is made between 32 and 45, the optimum limit pressure results were attained as can be seen in FIG. 11.
The seams are overlapped and a plurality of rows of stitches employed. Merely by way of example, the distance between rows of stitches and distance between rows can be made:
TABLE I 2 rows 3 rows The thread can be the same as the material of the bag.
In use, the bag can be suspended from a holding plate 14 which has a fluid supply pipe 12 thereto. The upper open end 16 can have a hem 17 (FIGS. 5, 9) with a flexible hoop 18 sewn therein. The holding plate 14 has a flange or ledge 19 for receiving the open end of the bag in assembled relation. Details of the holding means are shown in copending application Ser. No. 599,661, filed Nov. 15, 1966.
By use of the rounded-like bottom, the liquid passing through the strainer bag is guided to form a central stream 20 as seen in FIG. 5. This will prevent undesirable splashing and facilitate the collection point. If the end is square, the liquid will be irregular in its flow and will tend to flow from the corners which is not desirable.
An extension 25 (FIG. 12.) can be used further to concentrate or direct flow from the bottom or center of the strainer.
In a further arrangement, a muslin outer container or restrainer can be used as seen in FIG. 9. The muslin 21 can be used to enclosed bag 22 and support it at its top end as seen in FIG. 9.
As pressure is increased, the felt bag will tend to expand. The muslin tends to restrain such expansion so that a greater pressure can be used, such being possible up to the point the muslin bursts.
As an example and referring to FIG. 13, at 16 p.s.i., the muslin should be 1% larger and at 22 p.s.i. 2%" larger, 16 p.s.i. and 22 p.s.i. being the burst pressure when the muslin is made 1%" and 2%" larger than the felt bag. Thus, with a 44 x 36 count 1 ounce per square yard muslin, it should have a circumference of 14 inches, while the bag circumference should be 11% inches in order to reach a 22 psi. break point.
In the form shown in FIG. 6, the strainer is surrounded by a vessel 23 having an outlet 24.
In a still further form, the strainer 26 (FIG. 7) can be held in a wire basket 27 which is supported on ledge 28 of the walls 29 of vessel 30.
The strainer described herein also could be placed in various types of pressure vessels (not shown).
It is to be understood that the bottom edges could follow a chord without substantial curvature and the term rounded bottom includes such an arrangement.
It should be apparent that various details of construction and combinations can be utilized Without departing from the spirit of the invention except as defined in the appended claims.
What is claimed is:
1. A strainer bag of felt having a substantially cylindrical upper portion with an open upper end, a slightly convex lower portion, a vertical seam in said upper portion extending to said covex lower portion, said lower portion having a seam extending from the side edges adjacent the bottom of the cylindrical portion across the lower portion through the apex thereof, said lower portion being so constructed and arranged that a line drawn from the apex to the intersection of the cylindrical and convex portions is between about 32 and 45, said seams being interconnected to form the felt into a unitary strainer bag, and an attachment means surrounding said open end.
References Cited UNITED STATES PATENTS 567,387 9/1896 Hawley 210477 603,323 5/1898 Echart 210489 X 1,028,114 6/1912 Holton 210-474 X 1,284,944 11/1918 St. Pierre 210448 1,809,935 6/1931 Herzmark 210477 X 2,100,951 11/1937 Glass et al. 210460 X 2,286,434 6/1942 Myers et a1. 210489 X 2,416,524 2/1947 Huse et al. 210489 X 3,067,504 12/1962 Lubben et al. 210460 X 3,204,391 9/1965 SchWab 210448 X FOREIGN PATENTS 20,945 10/ 1925 Great Britain.
REUBEN FRIEDMAN, Primary Examiner.
C. M. DITLOW, Assistant Examiner.
US. Cl. X.R.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US594619A US3419151A (en) | 1966-11-15 | 1966-11-15 | Strainer bag construction |
GB51516/67A GB1205977A (en) | 1966-11-15 | 1967-11-13 | Strainer bag construction |
FR128184A FR1545996A (en) | 1966-11-15 | 1967-11-14 | Removable filter pockets |
DE1611043A DE1611043C3 (en) | 1966-11-15 | 1967-11-14 | Filter bag |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US594619A US3419151A (en) | 1966-11-15 | 1966-11-15 | Strainer bag construction |
Publications (1)
Publication Number | Publication Date |
---|---|
US3419151A true US3419151A (en) | 1968-12-31 |
Family
ID=24379663
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US594619A Expired - Lifetime US3419151A (en) | 1966-11-15 | 1966-11-15 | Strainer bag construction |
Country Status (3)
Country | Link |
---|---|
US (1) | US3419151A (en) |
DE (1) | DE1611043C3 (en) |
GB (1) | GB1205977A (en) |
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US3495713A (en) * | 1969-07-02 | 1970-02-17 | Hsu Hsin Chi | Lint and thread collecting bag for electric washing machine |
US3633757A (en) * | 1967-09-13 | 1972-01-11 | Madern Jean Pierre | Fluid filter |
US3780868A (en) * | 1972-04-19 | 1973-12-25 | Dorr Oliver Inc | Pressure filter having depending tubular filter elements |
DE2354917A1 (en) * | 1973-11-02 | 1975-05-07 | Hoechst Ag | DEVICE FOR DRAINING INDUSTRIAL SLURRY |
US3937621A (en) * | 1974-11-25 | 1976-02-10 | Phillips Petroleum Company | Filter bag cuff |
US3959138A (en) * | 1974-11-07 | 1976-05-25 | Nichols Louis B | Washing machine drain filter |
US3984330A (en) * | 1974-11-07 | 1976-10-05 | Nichols Louis B | Washing machine drain filter |
US4035304A (en) * | 1974-07-05 | 1977-07-12 | Terumo Corporation | Blood filtering bag |
US4058463A (en) * | 1974-09-03 | 1977-11-15 | Keene Corporation | Element for filtering and separating fluid mixtures |
US4122008A (en) * | 1977-02-10 | 1978-10-24 | Eddy Allen | Filtration process for separating particles from liquid coolants in lens grinding devices |
US4172788A (en) * | 1977-02-28 | 1979-10-30 | Ingram Alton E | Caustic chlorine filter bag |
US4250039A (en) * | 1979-05-07 | 1981-02-10 | Wire Cloth Products, Inc. | Transmission filter |
US4303519A (en) * | 1978-04-14 | 1981-12-01 | Delvecchio Evo | Quick disconnect bag filter |
US4564452A (en) * | 1983-12-09 | 1986-01-14 | Sharpe Anthony N | Apparatus for filtration |
US4604203A (en) * | 1984-09-14 | 1986-08-05 | Minnesota Mining And Manufacturing Co. | Cooking oil filtering apparatus and filter therefor |
US4680117A (en) * | 1985-10-18 | 1987-07-14 | The Gainesville 1920 Corporation | Yogurt separator device |
US4950392A (en) * | 1987-06-15 | 1990-08-21 | Hein-Werner Corporation | Filtration tank for filtering waste water used in washing mechanical components |
US5139686A (en) * | 1990-10-04 | 1992-08-18 | Gpl Partnership | Method and apparatus for filtering dry cleaning solvent |
US5156661A (en) * | 1992-01-31 | 1992-10-20 | Pall Corporation | Bag filter with thermoplastic tape-sealed sewn seam |
US5202020A (en) * | 1989-10-11 | 1993-04-13 | Desjoyaux Jean L | Liquid filtering device for swimming pools in particular |
US5217610A (en) * | 1992-03-18 | 1993-06-08 | Elite Commercial & Industrial, Inc. | Apparatus for removing metal particles from a liquid and method for making same |
US5626744A (en) * | 1995-03-31 | 1997-05-06 | Kimberly-Clark Corporation | Pressure sensitive extended life filter |
US5695651A (en) * | 1993-07-13 | 1997-12-09 | Apoc Limited | Inlet screen |
US6261445B1 (en) | 1997-04-16 | 2001-07-17 | Earl Roger Singleton | Temporary silt guard for sewer inlet |
US6334953B1 (en) | 1999-11-24 | 2002-01-01 | Roger Singleton | Storm water drainage filter assembly |
US20030070980A1 (en) * | 2001-10-11 | 2003-04-17 | Ray Michael Dean | Biodegradable disposable bag for cement waste |
US6651825B2 (en) * | 2001-06-06 | 2003-11-25 | Fresh Creek Technologies, Inc. | Disposable net assemblies for apparatus for collecting floating debris |
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US20090230049A1 (en) * | 2008-03-14 | 2009-09-17 | Ibs Filtran-Kunststoff-/Metallerzeugnisse Gmbh | Oil filter device |
US20090314715A1 (en) * | 2007-10-04 | 2009-12-24 | Conwell Michael K | Method of dewatering solids laden liquids utilizing a reusable filter element |
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US9586725B2 (en) | 2014-03-20 | 2017-03-07 | Danny Earp | Effluent container for cleaning heat exchangers |
US10661204B2 (en) | 2015-04-15 | 2020-05-26 | REMARK-KAYSER Sp. z.o.o. | Filter bag sealing method and a filter bag sealed therewith |
US20210340046A1 (en) * | 2020-04-29 | 2021-11-04 | Canadian National Railway Company | Device for dewatering and method of making same |
US20210402331A1 (en) * | 2020-06-24 | 2021-12-30 | Jason Farley | Filtering Device |
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IE56164B1 (en) * | 1984-12-21 | 1991-05-08 | Philip Joeph Hartley | Improvements in and relating to filter socks |
DE3614712A1 (en) * | 1986-04-30 | 1987-11-05 | Diessel Gmbh & Co | DEVICE FOR CULTIVATING CELL CULTURES |
US4783258A (en) * | 1986-06-05 | 1988-11-08 | Willinger Bros. | Filter cartridge with reuseable framework |
US4877526A (en) * | 1987-08-31 | 1989-10-31 | Minnesota Mining And Manufacturing Company | Flexible filter bag and method of fabrication |
AT96U1 (en) * | 1990-04-10 | 1995-02-27 | Bosch & Schoerle Bosch & Schoe | MILK FILTER STOCKING |
FR2802112B1 (en) * | 1999-12-13 | 2002-01-25 | Piscines Desjoyaux Sa | DEVICE FOR FILTERING THE WATER OF A POOL |
DE10010950A1 (en) * | 2000-03-06 | 2001-09-20 | Sefar Ag Rueschlikon | Disposable bioreactor for cultivation of dendritic cells used in immuno therapy, comprises a substrate-carrying organic material located in a pouch |
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IES20050777A2 (en) * | 2005-11-22 | 2007-05-30 | Chem Services | An improved filter sock |
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US603323A (en) * | 1898-05-03 | Filter | ||
US1028114A (en) * | 1911-05-20 | 1912-06-04 | Abby T Holton | Strainer. |
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GB220945A (en) * | 1923-08-23 | 1925-11-19 | Rudolf Hermann Heinrich Geffck | Improvements in or relating to electric alarm devices |
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US2100951A (en) * | 1935-09-05 | 1937-11-30 | Willie F Glass | Filter |
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US3067504A (en) * | 1959-06-12 | 1962-12-11 | Permanent Filter Corp | Method of making a filter sock |
US3204391A (en) * | 1962-12-28 | 1965-09-07 | Schwab Louis | Air filtration |
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- 1967-11-14 DE DE1611043A patent/DE1611043C3/en not_active Expired
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US1028114A (en) * | 1911-05-20 | 1912-06-04 | Abby T Holton | Strainer. |
US1284944A (en) * | 1918-02-21 | 1918-11-12 | Octave J St Pierre | Sink-trap. |
GB220945A (en) * | 1923-08-23 | 1925-11-19 | Rudolf Hermann Heinrich Geffck | Improvements in or relating to electric alarm devices |
US1809935A (en) * | 1928-07-30 | 1931-06-16 | Abraham M Herzmark | Coffee urn bag |
US2100951A (en) * | 1935-09-05 | 1937-11-30 | Willie F Glass | Filter |
US2286434A (en) * | 1939-11-14 | 1942-06-16 | Myers Bruce | Filter |
US2416524A (en) * | 1943-10-16 | 1947-02-25 | Du Pont | Composite filtering medium and method of filtering |
US3067504A (en) * | 1959-06-12 | 1962-12-11 | Permanent Filter Corp | Method of making a filter sock |
US3204391A (en) * | 1962-12-28 | 1965-09-07 | Schwab Louis | Air filtration |
Cited By (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3633757A (en) * | 1967-09-13 | 1972-01-11 | Madern Jean Pierre | Fluid filter |
US3495713A (en) * | 1969-07-02 | 1970-02-17 | Hsu Hsin Chi | Lint and thread collecting bag for electric washing machine |
US3780868A (en) * | 1972-04-19 | 1973-12-25 | Dorr Oliver Inc | Pressure filter having depending tubular filter elements |
DE2354917A1 (en) * | 1973-11-02 | 1975-05-07 | Hoechst Ag | DEVICE FOR DRAINING INDUSTRIAL SLURRY |
US4035304A (en) * | 1974-07-05 | 1977-07-12 | Terumo Corporation | Blood filtering bag |
US4058463A (en) * | 1974-09-03 | 1977-11-15 | Keene Corporation | Element for filtering and separating fluid mixtures |
US3959138A (en) * | 1974-11-07 | 1976-05-25 | Nichols Louis B | Washing machine drain filter |
US3984330A (en) * | 1974-11-07 | 1976-10-05 | Nichols Louis B | Washing machine drain filter |
US3937621A (en) * | 1974-11-25 | 1976-02-10 | Phillips Petroleum Company | Filter bag cuff |
US4122008A (en) * | 1977-02-10 | 1978-10-24 | Eddy Allen | Filtration process for separating particles from liquid coolants in lens grinding devices |
US4172788A (en) * | 1977-02-28 | 1979-10-30 | Ingram Alton E | Caustic chlorine filter bag |
US4303519A (en) * | 1978-04-14 | 1981-12-01 | Delvecchio Evo | Quick disconnect bag filter |
US4250039A (en) * | 1979-05-07 | 1981-02-10 | Wire Cloth Products, Inc. | Transmission filter |
US4564452A (en) * | 1983-12-09 | 1986-01-14 | Sharpe Anthony N | Apparatus for filtration |
US4604203A (en) * | 1984-09-14 | 1986-08-05 | Minnesota Mining And Manufacturing Co. | Cooking oil filtering apparatus and filter therefor |
US4680117A (en) * | 1985-10-18 | 1987-07-14 | The Gainesville 1920 Corporation | Yogurt separator device |
US4950392A (en) * | 1987-06-15 | 1990-08-21 | Hein-Werner Corporation | Filtration tank for filtering waste water used in washing mechanical components |
US5202020A (en) * | 1989-10-11 | 1993-04-13 | Desjoyaux Jean L | Liquid filtering device for swimming pools in particular |
US5139686A (en) * | 1990-10-04 | 1992-08-18 | Gpl Partnership | Method and apparatus for filtering dry cleaning solvent |
US5156661A (en) * | 1992-01-31 | 1992-10-20 | Pall Corporation | Bag filter with thermoplastic tape-sealed sewn seam |
US5217610A (en) * | 1992-03-18 | 1993-06-08 | Elite Commercial & Industrial, Inc. | Apparatus for removing metal particles from a liquid and method for making same |
US5695651A (en) * | 1993-07-13 | 1997-12-09 | Apoc Limited | Inlet screen |
US5626744A (en) * | 1995-03-31 | 1997-05-06 | Kimberly-Clark Corporation | Pressure sensitive extended life filter |
US6261445B1 (en) | 1997-04-16 | 2001-07-17 | Earl Roger Singleton | Temporary silt guard for sewer inlet |
US6428693B2 (en) | 1997-04-16 | 2002-08-06 | Earl Roger Singleton | Temporary silt guard for sewer inlet |
US6334953B1 (en) | 1999-11-24 | 2002-01-01 | Roger Singleton | Storm water drainage filter assembly |
US6840385B2 (en) * | 2000-12-19 | 2005-01-11 | Sidney Goldman | Lateral dispersion filter basket |
US6651825B2 (en) * | 2001-06-06 | 2003-11-25 | Fresh Creek Technologies, Inc. | Disposable net assemblies for apparatus for collecting floating debris |
US20040096637A1 (en) * | 2001-06-06 | 2004-05-20 | Fresh Creek Technologies, Inc. | Disposable net assemblies for apparatus for collecting floating debris |
US6866153B2 (en) | 2001-06-06 | 2005-03-15 | Fresh Creek Technologies, Inc. | Disposable net assemblies for apparatus for collecting floating debris |
US20030070980A1 (en) * | 2001-10-11 | 2003-04-17 | Ray Michael Dean | Biodegradable disposable bag for cement waste |
US20040105741A1 (en) * | 2003-07-14 | 2004-06-03 | Pat Inglese | Wet (plastic) and dry concrete reclamation/disposal device |
US20080251471A1 (en) * | 2003-07-14 | 2008-10-16 | Pat Inglese | Wet (plastic) and dry concrete reclamation/disposal device |
US8113220B2 (en) | 2003-07-14 | 2012-02-14 | Pat Inglese | Wet (plastic) and dry concrete disposal device |
US7753090B2 (en) | 2005-10-18 | 2010-07-13 | Danny Earp | Blasting fluid effluent containment device |
US8070960B2 (en) * | 2007-10-04 | 2011-12-06 | Conwell Michael K | Method of dewatering solids laden liquids utilizing a reusable filter element |
US20090314715A1 (en) * | 2007-10-04 | 2009-12-24 | Conwell Michael K | Method of dewatering solids laden liquids utilizing a reusable filter element |
US9149743B2 (en) | 2007-10-04 | 2015-10-06 | Michael K. Conwell | Apparatus for dewatering solids-laden liquids |
US20090230049A1 (en) * | 2008-03-14 | 2009-09-17 | Ibs Filtran-Kunststoff-/Metallerzeugnisse Gmbh | Oil filter device |
US8673141B2 (en) * | 2008-03-14 | 2014-03-18 | Ibs Filtran Kunststoff/Metallerzeugnisse Gmbh | Oil filter device |
US20140197085A1 (en) * | 2008-03-14 | 2014-07-17 | Ibs Filtran-Kunststoff-/Metallerzeugnisse Gmbh | Oil filter device |
US9586725B2 (en) | 2014-03-20 | 2017-03-07 | Danny Earp | Effluent container for cleaning heat exchangers |
US10661204B2 (en) | 2015-04-15 | 2020-05-26 | REMARK-KAYSER Sp. z.o.o. | Filter bag sealing method and a filter bag sealed therewith |
US20210340046A1 (en) * | 2020-04-29 | 2021-11-04 | Canadian National Railway Company | Device for dewatering and method of making same |
US20210402331A1 (en) * | 2020-06-24 | 2021-12-30 | Jason Farley | Filtering Device |
US11554333B2 (en) * | 2020-06-24 | 2023-01-17 | Jason Farley | Method of filtering water being returned to a swimming pool |
US11708690B2 (en) | 2020-06-24 | 2023-07-25 | Silt Saver, Inc. | Temporary sediment retention assembly |
US20230390674A1 (en) * | 2022-06-03 | 2023-12-07 | Todd Ewing | Liquid Filtering Bag |
Also Published As
Publication number | Publication date |
---|---|
DE1611043C3 (en) | 1979-07-19 |
DE1611043B2 (en) | 1974-06-12 |
DE1611043A1 (en) | 1970-10-08 |
GB1205977A (en) | 1970-09-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MARINE MIDLAND BANK, N.A. 140 BROADWAY, NEW YORK, Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:AMERICAN FELT & FILTER COMPANY, INC.;REEL/FRAME:004188/0959 Effective date: 19830426 |