US3837396A - Vertical surface vapor condensers - Google Patents
Vertical surface vapor condensers Download PDFInfo
- Publication number
- US3837396A US3837396A US00295086A US29508672A US3837396A US 3837396 A US3837396 A US 3837396A US 00295086 A US00295086 A US 00295086A US 29508672 A US29508672 A US 29508672A US 3837396 A US3837396 A US 3837396A
- Authority
- US
- United States
- Prior art keywords
- tube
- rod
- condensate
- condensing surface
- guide means
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
- F28B9/08—Auxiliary systems, arrangements, or devices for collecting and removing condensate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S165/00—Heat exchange
- Y10S165/184—Indirect-contact condenser
- Y10S165/198—Condensate guiding means attached to heat transfer surface
- Y10S165/20—Condensate guiding means forms inside heat transfer tube
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S165/00—Heat exchange
- Y10S165/913—Condensation
Definitions
- Hunter 57 ABSTRACT Improvements in vertical tube or column type surface vapor condensers comprising means positioned within the tubes engaging the inner tube walls for guiding condensate away from that primary condensing surface to remove condensate from the condensing surfaces to improve heat transfer.
- a tree-like structure having a central trunk and a plurality of up-reaching and spreading wire branches which contact the tube interior wall and remove condensate capillary action as well as gravity; a second tree-like unit having U- shaped double branch contacters extending for a length along the tube wall for increased capillary action and a funnel type that includes a plurality of opening upward split-walled funnels which are affixed at spaced intervals along a central rod and have their outer edges engaging the tube interior walls.
- FIG.1 SOIGJ k 'FIG. 3 a ma 1 VERTICAL SURFACE VAPOR CONDENSERS CROSS-REFERENCE TO RELATED APPLICATION FIELD OF THE INVENTION
- This invention is directed toward an improvement in vapor condensers of the surface type, such as those used with refrigeration equipment. It is especially concerned with improvements in generally vertical column or tube condensers.
- Condensers having generally vertical condensing walls one side of which is cooled, as by directing a coolant such as air across it and the other side of which serves as the primary condensing surface on which the condensate is formed and flows by gravity to a low point for removal are well known in the art.
- a coolant such as air across it and the other side of which serves as the primary condensing surface on which the condensate is formed and flows by gravity to a low point for removal
- the guide means are preferably constructed of a thermally conducting material such as aluminum so as to also add to the cooling surface. However this is not necessary and even plastic guide means may be employed.
- FIG. 1 is a simplified diagrammatic representation of refrigeration system including an air cooled vertical tube condenser, incorporating the present invention
- FIG. 2 is a longitudinal sectional view ofa portion of one of the vertical condenser tubes of the condenser of FIG. 1, in which, in accordance with the present invention, condensate guide means are provided;
- FIG. 3 is a longitudinal sectional view of a portion of a vertical condenser tube, such as those employed in the condenser of FIG. 1, in which a second embodiment of the invention is employed;
- FIG. 4 is a transverse sectional view of the tube of FIG. 3, as seen from the line 4-4 thereof;
- FIG. 5 is a longitudinal sectional view of a portion of a vertical condenser tube, such as those employed in the condenser of FIG. 1, in which yet another embodiment of the invention is incorporated;
- FIG. 6 is a transverse sectional view of the tube of FIG. 5 as seen from the line 6-6 thereof;
- FIG. 7 is a longitudinal sectional view of a portion of a condenser tube constructed in accordance with the present invention.
- the system 8 includes a compressor 9, which discharges hot compressed refrigerant gases into a vapor condenser generally designated 10.
- the condenser 10 is of the vertical tube surface condenser type and includes a plurality of generally vertical tubes 12 which, in an air cooled construction usually include fins 14 or other heat exchange surface. Air or other coolant is directed between the fins 14 and by the tubes 12. Gas or vapor enters the condenser tubes at a top inlet or header 20 and liquid condensate is removed from a bottom sink or outlet 22.
- the tubes 12 of the condenser 10 are provided, as may best be seen in FIG. 2, with means (generally designated 30) for guiding condensate from the interior primary condensing surface 128.
- primary condensing surface means a vapor condensing surface segment such as the interior tube surface of a structure or wall, such as the curving wall of the tube 12, which has its opposite side or surface in substantial contact with coolant, either directly or with the aid of external fins, such as the fins 14, and does not encompass incidental surfaces which, like internal fins, for example, might aid in condensation.
- the guide means 30, in this embodiment, comprises a tree-like member having a central rod or trunk 32 and a plurality of upwardly and outwardly extending spires or branches 34 which extend on all sides of the trunk 32 in a more or less random array.
- the spires 34 are preferably thin wire segments which are twisted together in the main trunk wire.
- the spires 34 serve to guide or pick off, from their points contacting the surface 128, the condensate primarily by capillary action, which condensate then runs down them to the trunk 32. This condensate then is guided down the trunk 32 toward the vicinity of the outlet 22 without again flowing onto the condensing surface 12S.
- the tree-like guide means 30 is preferably made with spires or branches 34 of a length greater than the radius of the tube 12 in which it is to be employed.
- the branches 34 are preferably initially constructed so as to be roughly perpendicular to the trunk 32 and assume their depicted orientation during the assembly of the tube when the means 30 is inserted from the upper end. This method of manufacture has the advantage of providing a secure mounting of the means 30, within the tube as well as sure contact between the outer end of the branches 34 and the surface 128.
- guide means 30 are used, each comprising a generally centrally located trunk member or rod 32' to which generally U-shaped branch units 34' are affixed at spaced intervals.
- the U-shaped units 34 are formed with upright lengths 35 which extend for a considerable vertical distance along the primary condensing surface 128 to gather, by capillary action, condensate fluid between the sides of the lengths 35 and the adjacent portions of the surface 125. This fluid is moved downward by gravity until it runs along the bottom of arcuant portions 36 curving toward the rod 32. Before the portion 36 reaches the rod 32', it joins with depending extensions 38 which lie at the lowest point on the U-shaped branch units 34'. These extensions 38 serve as departure points for the fluid to drip down to the bottom of the tube 12.
- the branch units 34 are preferably positioned at randomly located planes about the rod 32. Theslightly off-center position of the U-shaped branch units 34 and their random orientation provide drop paths that inherently will intercept few, if any, of the lower U- shaped branch units 34'.
- the units 34 are also preferably of a resilient material and so formed as to bear against the surface 128 to assure good contact therewith as well as to secure the means 30' within the tube 12.
- This means 30" also comprises a generally central trunk or rod 32".
- a branching out funnel unit 34" is provided to guide the fluid from the surface 125 toward the central zone of the tube 12.
- funnels 34" are preferably made of a thin metal but may also be made of a relatively flexible plastic that can withstand this environment of use.
- the normal diameter of the units 34 is slightly greater than the interior diameter of the tube 12.
- a radial slit 40 provided to allow the unit to compress while being inserted into the tube 12. This resiliently holds the guide means 30" in place and urges the outer edge 42 of the funnel tightly against the surface 128.
- the funnel 34" slopes downwardly from the edge 4b at a sharp incline in a rim section 44.
- the area of contact between the surface 128 and the rim section 44 is preferably kept quite small.
- the upper edge of the section preferably tapers down to a knife-like edge. From the bottom of the rim section the funnel unit 34 extends at a smaller incline 46 to a circular opening and depending rim 48 to which the rod 32" is affixed (as by spot welding).
- the funnels 34" are preferably affixed to the rod 32 so that their slits 40 do not lie over each other.
- FIGS. 5 and 6 While it may be possible in the embodiment of FIGS. 5 and 6 to eliminate the rod 32" that rod is preferred so as to fix the spacing between funnels 34", to provide a rigid structure, to aid in flow direction and to aid in assembly of the guide means into the tube 12.
- the funnel spacing is such as to provide condensation chambers each of a vertical height so that no appreciable film thickness developes to impede heat transfer.
- FIG. 7 there is illustrated a further condenser tube constructed in accordance with the present invention wherein the relatively high vapor velocity zone, the upper section of the tube 12, is equipped with guide means 30 of the type described above in conjunction with FIG. 2, while the lower gas velocity zone, the lower section of the tube 12, is equipped with the means 30" of the type described in conjunction with FIGS. 5 and 6.
- the vapor initially entering the tube meets with little resistance to its flow as a result of the guide means 30.
- Some of this vapor is removed as condensate in the upper part of the tube 12 resulting in a lower velocity of vapor flow in the lower portion of the tube 12 where the higher flow resisting guide means 30" is provided.
- a vapor condenser comprising: a plurality of substantially vertical tubes through which vapor to be condensed is caused to flow, each said tube including an inner condensing surface and an outer surface adapted to be cooled by a fluid medium; and condensate guide means located within said tubes adapted to remove condensed vapor from said condensing surface to improve the heat transfer of said condenser, said guide means including a central rod extending lengthwise of said tube, said rod being spaced from and out of contact with said condensing surface, and a plurality of flexible, upwardly and outwardly extending, wire-like branches each having one end connected to said rod and the opposite end in point contact with said condensing surface, said branches extending from all sides of said rod in random array whereby condensate is picked off the condensing surface by capillary action and guided downwardly along said branches toward said rod.
Abstract
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00295086A US3837396A (en) | 1970-09-11 | 1972-10-04 | Vertical surface vapor condensers |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US7153970A | 1970-09-11 | 1970-09-11 | |
US00295086A US3837396A (en) | 1970-09-11 | 1972-10-04 | Vertical surface vapor condensers |
Publications (1)
Publication Number | Publication Date |
---|---|
US3837396A true US3837396A (en) | 1974-09-24 |
Family
ID=26752342
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00295086A Expired - Lifetime US3837396A (en) | 1970-09-11 | 1972-10-04 | Vertical surface vapor condensers |
Country Status (1)
Country | Link |
---|---|
US (1) | US3837396A (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3981356A (en) * | 1975-06-06 | 1976-09-21 | Modine Manufacturing Company | Heat exchanger |
US4265275A (en) * | 1976-06-30 | 1981-05-05 | Transelektro Magyar Villamossagi Kulkereskedelmi Vallalat | Internal fin tube heat exchanger |
US4534409A (en) * | 1979-05-25 | 1985-08-13 | Societe Anonyme Francaise Du Ferodo | Tubular heat exchanger and helical agitators for use with such exchangers |
US4768583A (en) * | 1985-05-24 | 1988-09-06 | Mitsubishi Denki Kabushiki Kaisha | Heat exchanger with corrugated heat transfer plates |
US4800953A (en) * | 1987-10-14 | 1989-01-31 | Veldhoff James A | Baffle for coolant passage |
US20030106333A1 (en) * | 2000-03-17 | 2003-06-12 | Yasunobu Kawakami | Condenser |
US6619054B1 (en) * | 2002-05-06 | 2003-09-16 | Hydrogenics Corporation | Condenser for dehumidifying gas |
US20050199546A1 (en) * | 2003-09-22 | 2005-09-15 | Hydrogenics Corporation | Separator for removing liquid from fluid |
US6997246B2 (en) * | 2001-06-25 | 2006-02-14 | Delphi Technologies, Inc. | Laminar flow optional liquid cooler |
US7415848B2 (en) * | 2001-02-01 | 2008-08-26 | Lg Electronics Inc. | Pulsator type washing machine with drying function |
USRE43398E1 (en) * | 1997-06-16 | 2012-05-22 | Respironics, Inc. | Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator |
WO2013066709A1 (en) * | 2011-10-31 | 2013-05-10 | Nordson Corporation | Reconfigurable mixing baffle for static mixer and method for making a static mixer |
US20140116657A1 (en) * | 2012-10-26 | 2014-05-01 | Michael Charles Ritchie | Intercooler heat exchanger for evaporative air conditioner system |
CN107782171A (en) * | 2016-08-25 | 2018-03-09 | 林内株式会社 | Heat exchanger and water heater |
CN108148934A (en) * | 2018-02-28 | 2018-06-12 | 中冶赛迪工程技术股份有限公司 | Replaceable water granulated slag steam retracting device and its installation method |
US20190083928A1 (en) * | 2017-09-15 | 2019-03-21 | Baker Hughes, A Ge Company, Llc | Moisture separation systems for downhole drilling systems |
US10458728B2 (en) * | 2016-05-24 | 2019-10-29 | Rinnai Corporation | Turbulence member and heat exchanger using same, and water heater |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE270533C (en) * | ||||
US2310970A (en) * | 1941-05-28 | 1943-02-16 | Alexander S Limpert | Heat exchanger |
US2359288A (en) * | 1942-07-20 | 1944-10-03 | Young Radiator Co | Turbulence strip for heat exchangers |
US2503595A (en) * | 1945-12-01 | 1950-04-11 | Gen Motors Corp | Refrigerating apparatus |
DE1023473B (en) * | 1952-09-11 | 1958-01-30 | Anton Marek | Device to improve the heat transfer on steam-heated heat exchangers of the vertical design |
FR1170890A (en) * | 1957-02-05 | 1959-01-20 | Cie Ind Des Procedes Raoul Pic | heat exchanger |
US2970669A (en) * | 1957-06-21 | 1961-02-07 | Bergson Gustav | Condensing filter |
US3050957A (en) * | 1960-09-26 | 1962-08-28 | Gen Electric | Defrost water drain seal |
US3273599A (en) * | 1966-09-20 | Internally finned condenser tube | ||
US3468345A (en) * | 1966-05-31 | 1969-09-23 | Automatic Sprinkler Corp | Means for limiting temperature rise due to abrupt alteration of the flow rate of gas under high pressure through a conduit |
US3508608A (en) * | 1968-04-17 | 1970-04-28 | Saline Water Conversion Corp | Condenser tubes |
-
1972
- 1972-10-04 US US00295086A patent/US3837396A/en not_active Expired - Lifetime
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE270533C (en) * | ||||
US3273599A (en) * | 1966-09-20 | Internally finned condenser tube | ||
US2310970A (en) * | 1941-05-28 | 1943-02-16 | Alexander S Limpert | Heat exchanger |
US2359288A (en) * | 1942-07-20 | 1944-10-03 | Young Radiator Co | Turbulence strip for heat exchangers |
US2503595A (en) * | 1945-12-01 | 1950-04-11 | Gen Motors Corp | Refrigerating apparatus |
DE1023473B (en) * | 1952-09-11 | 1958-01-30 | Anton Marek | Device to improve the heat transfer on steam-heated heat exchangers of the vertical design |
FR1170890A (en) * | 1957-02-05 | 1959-01-20 | Cie Ind Des Procedes Raoul Pic | heat exchanger |
US2970669A (en) * | 1957-06-21 | 1961-02-07 | Bergson Gustav | Condensing filter |
US3050957A (en) * | 1960-09-26 | 1962-08-28 | Gen Electric | Defrost water drain seal |
US3468345A (en) * | 1966-05-31 | 1969-09-23 | Automatic Sprinkler Corp | Means for limiting temperature rise due to abrupt alteration of the flow rate of gas under high pressure through a conduit |
US3508608A (en) * | 1968-04-17 | 1970-04-28 | Saline Water Conversion Corp | Condenser tubes |
Cited By (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3981356A (en) * | 1975-06-06 | 1976-09-21 | Modine Manufacturing Company | Heat exchanger |
US4265275A (en) * | 1976-06-30 | 1981-05-05 | Transelektro Magyar Villamossagi Kulkereskedelmi Vallalat | Internal fin tube heat exchanger |
US4534409A (en) * | 1979-05-25 | 1985-08-13 | Societe Anonyme Francaise Du Ferodo | Tubular heat exchanger and helical agitators for use with such exchangers |
US4768583A (en) * | 1985-05-24 | 1988-09-06 | Mitsubishi Denki Kabushiki Kaisha | Heat exchanger with corrugated heat transfer plates |
US4800953A (en) * | 1987-10-14 | 1989-01-31 | Veldhoff James A | Baffle for coolant passage |
USRE43398E1 (en) * | 1997-06-16 | 2012-05-22 | Respironics, Inc. | Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator |
US20030106333A1 (en) * | 2000-03-17 | 2003-06-12 | Yasunobu Kawakami | Condenser |
US6953083B2 (en) * | 2000-03-17 | 2005-10-11 | Honda Giken Kogyo Kabushiki Kaisha | Condenser |
US7415848B2 (en) * | 2001-02-01 | 2008-08-26 | Lg Electronics Inc. | Pulsator type washing machine with drying function |
US6997246B2 (en) * | 2001-06-25 | 2006-02-14 | Delphi Technologies, Inc. | Laminar flow optional liquid cooler |
US6619054B1 (en) * | 2002-05-06 | 2003-09-16 | Hydrogenics Corporation | Condenser for dehumidifying gas |
US20050199546A1 (en) * | 2003-09-22 | 2005-09-15 | Hydrogenics Corporation | Separator for removing liquid from fluid |
WO2013066709A1 (en) * | 2011-10-31 | 2013-05-10 | Nordson Corporation | Reconfigurable mixing baffle for static mixer and method for making a static mixer |
JP2014532556A (en) * | 2011-10-31 | 2014-12-08 | ノードソン コーポレーションNordson Corporation | Reconfigurable mixing baffle for static mixer and method for making static mixer |
US9242214B2 (en) | 2011-10-31 | 2016-01-26 | Nordson Corporation | Reconfigurable mixing baffle for static mixer and method for making a static mixer |
US11446616B2 (en) * | 2011-10-31 | 2022-09-20 | Nordson Corporation | Reconfigurable mixing baffle for static mixer and method for making a static mixer |
US9981232B2 (en) | 2011-10-31 | 2018-05-29 | Nordson Corporation | Reconfigurable mixing baffle for static mixer and method for making a static mixer |
US20140116657A1 (en) * | 2012-10-26 | 2014-05-01 | Michael Charles Ritchie | Intercooler heat exchanger for evaporative air conditioner system |
US10458728B2 (en) * | 2016-05-24 | 2019-10-29 | Rinnai Corporation | Turbulence member and heat exchanger using same, and water heater |
US10465943B2 (en) | 2016-08-25 | 2019-11-05 | Rinnai Corporation | Water heat exchanger with tube drainage member |
EP3293465A1 (en) * | 2016-08-25 | 2018-03-14 | Rinnai Corporation | Heat exchanger and water heater |
CN107782171A (en) * | 2016-08-25 | 2018-03-09 | 林内株式会社 | Heat exchanger and water heater |
US20190083928A1 (en) * | 2017-09-15 | 2019-03-21 | Baker Hughes, A Ge Company, Llc | Moisture separation systems for downhole drilling systems |
EP3682083A4 (en) * | 2017-09-15 | 2021-04-14 | Baker Hughes, a GE company, LLC | Moisture separation systems for downhole drilling systems |
US10981108B2 (en) * | 2017-09-15 | 2021-04-20 | Baker Hughes, A Ge Company, Llc | Moisture separation systems for downhole drilling systems |
CN108148934A (en) * | 2018-02-28 | 2018-06-12 | 中冶赛迪工程技术股份有限公司 | Replaceable water granulated slag steam retracting device and its installation method |
CN108148934B (en) * | 2018-02-28 | 2023-06-13 | 中冶赛迪工程技术股份有限公司 | Replaceable water slag steam recovery device and installation method thereof |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3837396A (en) | Vertical surface vapor condensers | |
US4434112A (en) | Heat transfer surface with increased liquid to air evaporative heat exchange | |
US4588023A (en) | Device for releasing heat | |
US3170512A (en) | Heat exchanger | |
US4554968A (en) | Wrapped fin heat exchanger circuiting | |
AU690048B2 (en) | Steam condensing apparatus | |
US3710854A (en) | Condenser | |
US3180405A (en) | Condensers | |
US6341647B1 (en) | Separator-integrated condenser for vehicle air conditioner | |
US2523529A (en) | Eliminator for refrigeration system evaporators | |
US5183105A (en) | Opposed canted evaporator | |
US4252186A (en) | Condenser with improved heat transfer | |
US3935715A (en) | Vapor condenser for a refrigeration system | |
JP3801771B2 (en) | Heat transfer tube for falling film evaporator | |
US2517654A (en) | Refrigerating apparatus | |
RU2190173C2 (en) | Air-cooled condenser | |
JPH11148747A (en) | Heat exchanger tube for evaporator of absorption refrigerating machine | |
JPH10197173A (en) | Flat tube for heat exchanger and heat exchanger | |
US3903962A (en) | Condensate guiding apparatus for vertical condensing tubes of vapor condenser | |
US3677338A (en) | Surface condenser | |
JPH06147784A (en) | Heat exchanger tube | |
US2071026A (en) | Condenser for air conditioning systems | |
US2116998A (en) | Refrigeration | |
US2877631A (en) | Refrigeration apparatus | |
US2314402A (en) | Refrigeration |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: YORK INTERNATIONAL CORPORATION, 631 SOUTH RICHLAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. EFFECTIVE;ASSIGNOR:BORG-WARNER CORPORATION;REEL/FRAME:004676/0360 Effective date: 19860609 |
|
AS | Assignment |
Owner name: CANADIAN IMPERIAL BANK OF COMMERCE Free format text: SECURITY INTEREST;ASSIGNOR:YORK INTERNATIONAL CORPORATION;REEL/FRAME:005156/0705 Effective date: 19881215 |
|
AS | Assignment |
Owner name: CANADIAN IMPERIAL BANK OF COMMERCE Free format text: SECURITY INTEREST;ASSIGNOR:YORK OPERATING COMPANY, F/K/A YORK INTERNATIONAL CORPORATION A DE CORP.;REEL/FRAME:005994/0916 Effective date: 19911009 |
|
AS | Assignment |
Owner name: CANADIAN IMPERIAL BANK OF COMMERCE Free format text: SECURITY INTEREST;ASSIGNOR:YORK INTERNATIONAL CORPORATION (F/K/A YORK OPERATING COMPANY);REEL/FRAME:006007/0123 Effective date: 19911231 |
|
AS | Assignment |
Owner name: CANADIAN IMPERIAL BANK OF COMMERCE Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:YORK INTERNATIONAL CORPORATION, A DE CORP.;REEL/FRAME:006194/0182 Effective date: 19920630 |