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(en)
*
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1908-05-09 |
1910-06-21 |
Air Cleaner Company |
Cleaning apparatus.
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US1661480A
(en)
*
|
1925-03-02 |
1928-03-06 |
Walter L Keefer |
Surface-cleaning machine
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US1691164A
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*
|
1927-05-13 |
1928-11-13 |
Travis B Monk |
Window-washing device
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US1993267A
(en)
*
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1928-07-14 |
1935-03-05 |
Ferguson Charles Hiram |
Pumping apparatus
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US2049603A
(en)
*
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1929-11-29 |
1936-08-04 |
Electrolux Corp |
Pneumatic cleaner
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US1840257A
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*
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1930-01-02 |
1932-01-05 |
Barnes Mfg Company |
Self-priming pumping apparatus
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US1849093A
(en)
*
|
1930-04-18 |
1932-03-15 |
John T Janette |
Self priming pump
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US1982345A
(en)
*
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1930-06-13 |
1934-11-27 |
James B Kirby |
Window washer
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US2292435A
(en)
*
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1937-11-26 |
1942-08-11 |
Leo C Crites |
Window washing apparatus
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US2424657A
(en)
*
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1944-04-03 |
1947-07-29 |
Goodman Harry |
Liquid level control device for pumping units
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US2470066A
(en)
*
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1946-03-30 |
1949-05-10 |
Lumenite Electronic Company |
Electrode assembly
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US2499876A
(en)
*
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1948-09-28 |
1950-03-07 |
Stanley F Platek |
Cleaning apparatus
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US2657416A
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*
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1949-05-06 |
1953-11-03 |
Spencer Turbine Co |
Liquid separator attachment for vacuum cleaners
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US2718656A
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*
|
1950-03-09 |
1955-09-27 |
Frank H Kirk |
Window glass cleaner
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US2757406A
(en)
*
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1951-07-18 |
1956-08-07 |
Moses O Decker |
Apparatus for vacuum-cleaning upholstery, carpets, etc.
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US2643732A
(en)
*
|
1951-09-27 |
1953-06-30 |
Continental Car Na Var Corp |
Vacuum cleaning machine
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US2909800A
(en)
*
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1953-06-22 |
1959-10-27 |
Eugene L Grindle |
Liquid and vacuum cleaning machine
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US2791964A
(en)
*
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1954-01-18 |
1957-05-14 |
Robert E Reeve |
Milk withdrawal device for continuous milking systems
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US2934623A
(en)
*
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1956-06-11 |
1960-04-26 |
Fed Pacific Electric Co |
Combination circuit breakers
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US2932844A
(en)
*
|
1958-08-22 |
1960-04-19 |
Robert J O'connor |
Electric wall and ceiling washer
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US2972769A
(en)
*
|
1959-07-24 |
1961-02-28 |
Esmond J Keating |
Scrubbing machine for on-location cleaning of pile-type floor covering
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US3173164A
(en)
*
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1960-05-18 |
1965-03-16 |
Whirlpool Co |
Builtin vacuum cleaner
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US3048875A
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*
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1960-06-02 |
1962-08-14 |
Joseph P Rossi |
Pneumatic systems
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(en)
*
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1960-06-30 |
1962-04-17 |
Bissell Inc |
Combination vacuum cleaner and floor scrubber
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US3327144A
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*
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1964-07-15 |
1967-06-20 |
Franklin Electric Co Inc |
Carrying handle and switch assembly for a submersible motor
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US3303785A
(en)
*
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1965-06-08 |
1967-02-14 |
William H Pearce |
Adjustable automatic control for a pump
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US3355762A
(en)
*
|
1965-10-14 |
1967-12-05 |
Matthew S Cavell |
Wet scrubbing and vacuum cleaning apparatus
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US3345488A
(en)
*
|
1966-11-04 |
1967-10-03 |
Kenron Aluminum And Glass Corp |
Center bias momentary switch
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US3398250A
(en)
*
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1966-11-15 |
1968-08-20 |
Hoover Co |
Delay switch for reversing electric motors
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US3471663A
(en)
*
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1967-05-16 |
1969-10-07 |
F & F Enterprises Inc |
String-operated switch construction
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SE333628B
(de)
*
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1967-09-18 |
1971-03-22 |
J Ekenberg |
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(en)
*
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1967-11-13 |
1971-11-02 |
Wladyslaw Brycki |
Suction operated washing and cleaning apparatus
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US3502825A
(en)
*
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1968-09-04 |
1970-03-24 |
Switchcraft |
Electrical slide switch
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US3496592A
(en)
*
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1969-04-24 |
1970-02-24 |
Judson O Jones |
Portable apparatus for cleaning and partially drying carpets
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US3605786A
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*
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1969-09-10 |
1971-09-20 |
Purex Corp Ltd |
Evacuator
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US3720977A
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*
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1970-03-25 |
1973-03-20 |
W Brycki |
Suction cleaning apparatus
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US4114229A
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*
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1971-06-30 |
1978-09-19 |
Clarke-Gravely Corporation |
Surface cleaning apparatus
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US3828390A
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*
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1971-09-13 |
1974-08-13 |
J Cater |
Carpet cleaning machine
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US3774260A
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*
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1972-01-31 |
1973-11-27 |
Carpetech Corp |
Vacuum pick-up system
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US3942217A
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*
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1972-06-07 |
1976-03-09 |
Bates Jack A |
Carpet cleaning machine
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US3909197A
(en)
*
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1972-08-25 |
1975-09-30 |
Johann Heinrich Cremers |
Method and apparatus for cleaning textile floor covering
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*
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1973-01-29 |
1974-06-25 |
J Evans |
Heated liquid vacuum generator for use with a two chamber cleaning nozzle
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US3939527A
(en)
*
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1973-10-12 |
1976-02-24 |
Clarke-Gravely Corporation |
Portable surface cleaner
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US3977797A
(en)
*
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1974-07-22 |
1976-08-31 |
Paterson Peter J |
Apparatus for delivering fluid to a utilization device and a closed loop system for cleaning said apparatus and said utilization device
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US3914592A
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1974-09-03 |
1975-10-21 |
Purex Corp |
Underwater light circuit
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(en)
*
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1975-09-17 |
1977-05-03 |
Elepon Kabushiki Kaisha |
Submersible pump with float switch
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US4087706A
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*
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1975-11-24 |
1978-05-02 |
Hynes Electric Heating Company |
Electronic level switch control setup
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US4207649A
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1976-03-09 |
1980-06-17 |
Bates Jack A |
Carpet cleaning machine
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*
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1976-03-09 |
1978-05-09 |
Bates Jack A |
Carpet cleaning machine
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US4080104A
(en)
*
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1976-05-14 |
1978-03-21 |
Brown Jr Edward C |
Wet-dry vacuum apparatus with pump means for discharging liquid therefrom
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US4123818A
(en)
*
|
1976-10-07 |
1978-11-07 |
Mathew Hurwitz |
Carpet and floor washing accessory for wet pick-up-vacuum cleaners
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(en)
*
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1977-03-04 |
1979-02-13 |
Nauta Jelle G |
Convertible wet/dry vacuum cleaner
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US4179768A
(en)
*
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1977-03-16 |
1979-12-25 |
Aktiebolaget Electrolux |
Vacuum dumping arrangement for a wet/dry vacuum cleaner
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SE439242B
(sv)
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1977-05-13 |
1985-06-10 |
Vax Appliances Ltd |
Sugrengoringsapparat
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US4153968A
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1977-08-08 |
1979-05-15 |
Perkins Larry M |
Cleaning device
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*
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1977-10-03 |
1979-10-16 |
Clarke-Gravely Corporation |
Vacuum cleaner including diverter valve
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US4194262A
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*
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1978-09-29 |
1980-03-25 |
Rug Specialist Inc. |
Vacuum extraction cleaning machine
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US4218805A
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*
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1978-11-03 |
1980-08-26 |
Vax Appliances Limited |
Apparatus for cleaning floors, carpets and the like
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DE2963036D1
(en)
*
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1978-12-19 |
1982-07-22 |
Vax Appliances Ltd |
Apparatus for cleaning floors, carpets and the like
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US4244079A
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1979-02-09 |
1981-01-13 |
Bane William F |
Apparatus for cleaning a carpet on location
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US4226000A
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*
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1979-02-23 |
1980-10-07 |
Herbert Tribolet |
Wet and dry vacuum cleaning system
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DE3068929D1
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1979-03-05 |
1984-09-20 |
Auguste Begarie |
Dry vacuum cleaning machine for floors
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US4216563A
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1979-04-06 |
1980-08-12 |
Chemko Industries, Inc. |
Combined dry and wet carpet cleaner
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US4267617A
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1979-07-16 |
1981-05-19 |
Milliken Research Corporation |
Carpet scrubber with improved brush
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US4246676A
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*
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1979-08-15 |
1981-01-27 |
Alexander Hallsworth |
Liquid collecting vacuum container
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AU533029B2
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1979-12-03 |
1983-10-27 |
Richard Martindale Barker |
Steam cleaning apparatus
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FR2484558B1
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1980-06-17 |
1985-10-31 |
Sud Detartrage |
Dispositif d'epuisement et d'assechement de liquide, notamment d'eau, a l'aide d'un reservoir mobile et d'un moyen d'aspiration
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US4314385A
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1980-06-26 |
1982-02-09 |
Wln Products |
Carpet cleaning system
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*
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1980-07-03 |
1982-05-18 |
Chicoine Russell G |
Hot water extraction carpet and floor cleaning machine
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1980-10-16 |
1982-03-09 |
Holman Donald M |
Conversion device for cannister vacuum cleaners
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1980-11-10 |
1982-09-14 |
Tennant Company |
Scrubbing machine with selective recycle
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1981-01-29 |
1982-10-12 |
Woodford Frank W |
Rug cleaning apparatus
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1981-09-11 |
1983-08-09 |
The Singer Company |
Apparatus for cleaning carpets and the like
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1981-11-12 |
1984-07-10 |
Whirlpool Corporation |
Wet carpet cleaning apparatus
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DE3410817A1
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1984-03-23 |
1985-10-03 |
Esta Apparatebau GmbH & Co KG, 7913 Senden |
Reinigungsgeraet fuer schwimmbaeder oder dgl.
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GB8421711D0
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1984-08-28 |
1984-10-03 |
Unilever Plc |
Floor-cleaning machine
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1985-04-08 |
1987-04-07 |
Central Quality Industries, Inc. |
Vacuum cleaner
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1985-07-17 |
1988-12-06 |
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Compact self-contained hand held extraction cleaner
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1990-06-19 |
Rug Doctor, Inc. |
Modular vacuum cleaning system
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CA1264002A
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1985-09-05 |
1989-12-27 |
David P. Garner |
Surface cleaning apparatus
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DE3540783A1
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1985-11-16 |
1987-05-21 |
Hako Gmbh & Co |
Fahrbare nassreinigungsmaschine
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1986-03-14 |
1987-06-30 |
Tennant Company |
Control and monitor for a floor maintenance device
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1986-12-09 |
1988-02-09 |
Shumpert & Ellison, Inc. |
High pressure carpet or rug cleaning apparatus
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1987-03-20 |
1989-07-18 |
Bissell, Inc. |
Liquid extraction surface cleaning apparatus
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1987-03-20 |
1989-05-09 |
Bissell Inc. |
Liquid extraction surface cleaning apparatus
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1989-09-12 |
Bissell, Inc. |
Liquid extraction surface cleaning apparatus
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1987-06-29 |
1989-03-07 |
Houser Franklin C |
Combination vacuum and solution-dispensing apparatus
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DE3725204A1
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1987-07-30 |
1989-02-09 |
Esta Apparatebau |
Nasssauger
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1987-08-07 |
1989-06-27 |
The Kent Company |
Vacuum pump-out system for wet/dry vacuum cleaner
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1987-11-23 |
1989-01-31 |
Cross American Corporation |
Vacuum power booster with automatic waste liquid discharge for a water vacuum extraction apparatus
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1987-12-22 |
1989-07-11 |
Philips Home Products, Inc. |
Dual vacuum cleaner
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1988-03-20 |
1989-01-31 |
Bissell, Inc. |
Liquid extraction surface cleaning apparatus
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DE3817641A1
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1988-05-25 |
1989-11-30 |
Kaercher Gmbh & Co Alfred |
Hochdruckreinigungsgeraet
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1989-01-23 |
1990-08-21 |
William Shero |
Carpet cleaning system
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1989-05-23 |
1991-09-17 |
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Carpet cleaning apparatus
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1989-09-05 |
1990-12-18 |
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Dust collection apparatus
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1989-11-20 |
1990-12-04 |
Kleen-Rite Upholstery & Carpet Cleaning System |
Upholstery cleaning system
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FR2655470B1
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Nettoyeur haute pression equipe d'un ensemble de recuperation du liquide de nettoyage et des dechets.
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1990-09-18 |
Castex Industries, Inc. |
Floor cleaner
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1990-04-25 |
1991-05-07 |
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Side loading dual pail wet vacuum with flow divider
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DE4014443A1
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1990-05-05 |
1991-11-07 |
Duepro Ag |
Fluessigkeitssauger
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KR920004078Y1
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1990-05-16 |
1992-06-20 |
삼성전자 주식회사 |
진공청소기의 세제 공급장치
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DE4017366A1
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1990-05-30 |
1991-12-05 |
Leipzig Tech Hochschule |
Reinigungsgeraet
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KR920004231B1
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1990-05-31 |
1992-05-30 |
주식회사 금성사 |
건식진공청소기를 습식으로 전환하여 사용하기 위한 진공청소기용 부대장치
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1990-09-11 |
1993-03-02 |
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Wet vacuum/extractor and cleaning solution tank therefor
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1992-02-11 |
Bissell, Inc. |
Compact extractor
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1991-01-11 |
1992-08-04 |
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1991-01-17 |
1993-09-14 |
Tennant Company |
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1991-02-12 |
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Steamatic, Inc. |
Pump system for cleaning apparatus
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1991-02-22 |
1992-06-09 |
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Momentary pushbutton slide switch
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1991-07-03 |
1993-01-21 |
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Methods of and apparatus for containing and evacuating fluids
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1991-09-03 |
1994-03-01 |
Bissell Inc. |
Extractor with manual priming pump
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1991-09-10 |
1994-02-22 |
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Self-contained, compact vacuum/extractor
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1991-10-04 |
1994-03-01 |
The Hoover Company |
Vacuum cleaner hose with a multi-faceted appearance
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1992-03-25 |
1993-11-23 |
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Wet/dry vacuum system
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1992-04-16 |
1993-02-02 |
White Consolidated Industries, Inc. |
Vacuum pump-out control valve for wet/dry vacuum cleaner
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1992-09-02 |
1994-02-22 |
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Wet vacuum/extractor with vacuum priming system
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1993-01-15 |
1995-10-10 |
The Hoover Company |
Wet/dry utility vacuum cleaner
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1993-01-15 |
1995-02-14 |
The Hoover Company |
Rim seal for vacuum cleaner having dual storage tanks
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1993-02-12 |
1994-08-02 |
Greenlee Textron Inc. |
Housing arrangement for compact blower and vacuum
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1993-03-29 |
1994-07-19 |
The Hoover Company |
Vacuum cleaner hose and method for making same
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1993-05-11 |
1995-01-10 |
The Hoover Company |
Tank type vacuum cleaner tool storage shelf
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1993-05-12 |
1995-04-11 |
The Hoover Company |
Vacuum cleaner
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1993-05-19 |
1995-08-08 |
The Hoover Company |
Combined wet and dry vacuum cleaner
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1993-05-19 |
1995-04-25 |
The Hoover Company |
Combined wet and dry vacuum cleaner
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1993-07-12 |
1994-12-20 |
The Hoover Company |
Accessory storage for a vacuum cleaner
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1993-09-01 |
1995-10-10 |
Bissell Inc. |
Cleaning machine and control switch therefor
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1993-11-22 |
1995-02-07 |
The Hoover Company |
Outrigger caster support
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1993-12-27 |
1995-07-11 |
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Carpet cleaning apparatus
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1994-01-06 |
1996-09-17 |
Royal Appliance Mfg. Co. |
Combined wet/dry vacuum cleaner with a detachable blower
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1994-01-06 |
1995-04-11 |
Royal Appliance Mfg. Co. |
Latch assembly for blower of wet/dry vacuum cleaner
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1994-01-06 |
1996-07-16 |
Royal Appliance Mfg. Co. |
Method for manufacturing a bucket for a wet/dry vacuum cleaner
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1994-01-14 |
1995-04-18 |
The Hoover Company |
Tank carry handle and securement latch
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1994-01-26 |
1995-11-28 |
Sales; John K. |
Mobile system cleaning apparatus
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1994-03-16 |
1995-08-22 |
The Hoover Company |
Air turbine
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1994-05-27 |
1995-11-14 |
Allen; Harold |
Overload controlled wet and dry vacuum apparatus
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1994-10-03 |
1996-06-18 |
William H. Williams |
Wet and dry vacuum cleaner
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1994-12-29 |
1996-09-17 |
Shop Vac Corporation |
Apparatus for converting a vacuum cleaning device into a liquid dispensing and suctioning system
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USD372567S
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1995-07-11 |
1996-08-06 |
The Hoover Company |
Combined wet and dry vacuum cleaner
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1995-12-12 |
1998-02-10 |
Shop Vac Corporation |
Vacuum apparatus having a pump for discharging liquid therefrom
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1996-07-12 |
1999-10-19 |
Shop Vac Corporation |
Self-evacuating vacuum cleaner
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1996-07-12 |
1999-07-13 |
Shop Vac Corporation |
Self-evacuating vacuum cleaner
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1996-07-12 |
1999-07-06 |
Shop Vac Corporation |
Self-evacuating vacuum cleaner
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肖普真空有限公司 |
自排空真空吸尘器
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