Patent Assignee: Shop-Vac Corporation
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Charge control circuit for a vehicle vacuum cleaner battery
Inventor: Baer, et al. | Patent Number: 7859224
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Dolly with wheel lock
Inventor: Martinez | Patent Number: 7758055
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Pneumatic cleaner
Inventor: Crevling, Jr., et al. | Patent Number: 7721384
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Liquid-dispensing attachment for vacuum cleaners
Inventor: Crevling, Jr., et al. | Patent Number: 7669279
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Removable internal air diffuser
Inventor: Crevling, Jr., et al. | Patent Number: 7627928
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Wall hanging vacuum cleaner
Inventor: Liu | Patent Number: 7555809
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Hose holder
Inventor: Berfield | Patent Number: 7513464
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Caster and dolly wheel attachments for cylindrical tanks
Inventor: Martinez, et al. | Patent Number: 7165290
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Vacuum cleaner with continuous liquid pick-up
Inventor: Kaufman, et al. | Patent Number: 6912757
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Pump having dynamic shaft seal
Inventor: Berfield | Patent Number: 6508618
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Convertible blower port for vacuum cleaner
Inventor: Berfield, et al. | Patent Number: 6499182
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Fitting for vacuum bags
Inventor: Berfield, et al. | Patent Number: 6451078
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Nozzle and method providing increased liquid lift height for a wet/dry vacuum cleaner
Inventor: Berfield, et al. | Patent Number: 6440227
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Vaneless impeller housing for a vacuum cleaner
Inventor: Berfield | Patent Number: 6264427
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Vacuum cleaner collection bag
Inventor: Berfield | Patent Number: 6079076
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Control circuit for a liquid collecting device
Inventor: Robitaille | Patent Number: 6049940
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Thermal protection apparatus for electric motors
Inventor: Berfield | Patent Number: 6037685
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Tool caddy for attachment to container, particularly for a vacuum cleaner tank
Inventor: Berfield | Patent Number: 5313686
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Pressure washer with pressure bypass
Inventor: Paige, et al. | Patent Number: 5259556
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Pressure washer
Inventor: Berfield | Patent Number: 5230471
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Industrial sweeper
Inventor: La Boda | Patent Number: 5152027
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Foam creating nozzle system
Inventor: Paige | Patent Number: 5085371
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Nozzle assembly for a vacuum device
Inventor: Berfield, et al. | Patent Number: 5079796
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Attachment system for liquid spray lance
Inventor: Berfield | Patent Number: 5004160
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Housing arrangement for a fluid pump and tank
Inventor: Berfield | Patent Number: 4993457
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Nozzle assembly for a vacuum device
Inventor: Berfield, et al. | Patent Number: 4984330
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Drip cleaner attachment with solid cleaning concentrate
Inventor: Berfield | Patent Number: 4984328
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Liquid spraying nozzle
Inventor: Paige | Patent Number: 4976467
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Liquid dispensing and suctioning system for surface cleaning
Inventor: Miller | Patent Number: 4955104
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Cleaning liquid mixer for a water line, particularly for a surface cleaner
Inventor: Berfield, et al. | Patent Number: 4938421
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Filter and installation means for dry material filter for electric vacuum cleaner
Inventor: Berfield | Patent Number: 4906265
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Washer attachment for a suction cleaner
Inventor: Woodhall, et al. | Patent Number: 4887330
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Portable electric blower
Inventor: Berfield, et al. | Patent Number: 4880364
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Wheel type vacuum cleaner
Inventor: Berfield, et al. | Patent Number: 4858271
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Carpet cleaning apparatus
Inventor: Miller, et al. | Patent Number: 4845802
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Belt driving pulley having a roughened surface to reduce noise
Inventor: Berfield | Patent Number: 4838838
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Portable electric blower
Inventor: Berfield, et al. | Patent Number: 4836753
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Mounting for brushes of electric motors
Inventor: Wacek, et al. | Patent Number: 4800312
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Dolly frame
Inventor: Berfield, et al. | Patent Number: 4799699
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Outlet port baffle for exhaust air
Inventor: Berfield | Patent Number: 4799285
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Portable electric blower
Inventor: Berfield, et al. | Patent Number: 4797072
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Connection of motor brush holder to stator coil
Inventor: Crevling, Jr., et al. | Patent Number: 4782261
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Nozzle with improved coupling for a vacuum device
Inventor: Berfield | Patent Number: 4747179
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Swivable caster
Inventor: Berfield | Patent Number: 4719664
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Debris pan for rotary brush sweeper
Inventor: Berfield, et al. | Patent Number: 4709436
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Vehicle with readily mountable steering handle
Inventor: Berfield | Patent Number: 4705282
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Rotary brush sweeper with easily separable debris pan
Inventor: Berfield, et al. | Patent Number: 4701969
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Alternate blower outlet for vacuum cleaner
Inventor: Berfield, et al. | Patent Number: 4683608
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Rotary brush sweeper with mechanism for brush height adjustment
Inventor: Berfield, et al. | Patent Number: 4658458
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Housing assembly for motor/fan means of a wet/dry vacuum cleaner
Inventor: Berfield | Patent Number: 4655694
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Dolly with tank holding device
Inventor: Berfield, et al. | Patent Number: 4650200
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Hand held vacuum cleaner
Inventor: Berfield, et al. | Patent Number: 4642841
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Dolly with tank latch
Inventor: Berfield | Patent Number: 4640521
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Dolly bumper
Inventor: Berfield, et al. | Patent Number: 4635951
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Grid element for lid of a cannister type vacuum cleaner
Inventor: Berfield, et al. | Patent Number: 4623366
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Bumper for wheel well
Inventor: Berfield | Patent Number: 4621849
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Means for mounting floor pickup nozzle to dolly for vacuum cleaner
Inventor: Berfield, et al. | Patent Number: 4616378
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Collapsible support cage for vacuum cleaner filter
Inventor: Berfield, et al. | Patent Number: 4609387
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Conduit fixture for tank wall
Inventor: Berfield, et al. | Patent Number: 4606563
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Spring retainer for vacuum cleaner nozzle brush
Inventor: Berfield | Patent Number: 4592111
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Vacuum cleaner nozzle having rotating brush
Inventor: Miller, et al. | Patent Number: 4577366
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Hose end holder
Inventor: Berfield | Patent Number: 4563789
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Compact vacuum cleaner
Inventor: Berfield | Patent Number: 4547927
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Assembly of tank lid and fan means of a wet/dry vacuum
Inventor: Miller, et al. | Patent Number: 4538971
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Vibration isolating means
Inventor: Berfield | Patent Number: 4512713
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Air flow responsive outlet from tank of vacuum cleaner
Inventor: Berfield, et al. | Patent Number: 4508550
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Resilient detented lid latch
Inventor: Berfield | Patent Number: 4501378
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Shoe attachment for wet/dry electric vacuum cleaner
Inventor: Berfield | Patent Number: 4475265
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Electric vacuum cleaner
Inventor: Berfield, et al. | Patent Number: 4462137
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Noise reducing means for vacuum cleaner
Inventor: Berfield | Patent Number: 4435877
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Shoe attachment for wet/dry electric vacuum cleaner
Inventor: Berfield | Patent Number: 4413372
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Nozzle for hand-held vacuum
Inventor: Miller, et al. | Patent Number: 4380845
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Compact wet-dry electric vacuum cleaner
Inventor: Miller, et al. | Patent Number: 4334337
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Noise reducing blower motor housing means for vacuum cleaner, or the like
Inventor: Miller, et al. | Patent Number: 4330899
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Sound dome for electric vacuum cleaner
Inventor: Hiester | Patent Number: 4280245
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Buckle or latch for holding lid to container
Inventor: Berfield | Patent Number: 4270668
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Vacuum cleaner and sealed filter bag assembly therefor particularly useful for filtering asbestos fibers from air
Inventor: Miller | Patent Number: 4229193
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By-pass type portable vacuum cleaner
Inventor: Miller | Patent Number: 4213224
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Integral filter cage and lid for cannister type vacuum cleaner
Inventor: Hiester | Patent Number: 4185974