Hose nozzle with high pressure pump

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4792096
SERIAL NO

07132367

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A nozzle with self-contained high pressure booster pump is carried on a pistol grip handle with a small motor to drive the eccentrically-pump. A portion of the water from a conventional hose fitting flows laterally into a pump cylinder and then radially through the piston itself to exit axially through a check valve and into the pump chamber ahead of the piston. During the working stroke the water is driven out of the piston into a pressure chamber and then through a restricted passageway to exit in a jet stream. Another portion of the supply water is diverted around the pump cylinder to the same nozzle to flush away debris loosened by the jet stream.

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First Claim

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Patent Owner(s)

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International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gregory, T Jack 1932 Weiss La., Penngrove, CA 94951 1 13

Cited Art Landscape

Patent Info (Count) # Cites Year
 
J. Wagner GmbH (1)
* 4393993 Spray gun 17 1981
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (2)
* 2009/0116,979 Piston vibratory pump 2 2004
* 7354255 Piston vibratory pump 9 2005
 
ALFRED KAERCHER GMBH & CO. KG (1)
7600698 Cleaning head and surface cleaning device comprising said type of cleaning head 1 2007
 
Diversified Dynamics Corporation (1)
* 5421520 Portable pressure washer 30 1993
 
TOYO DENKI SEIZO KABUSHIKI KAISHA (1)
* 5846337 Aerial washing method and apparatus 2 1996
 
SMITH & NEPHEW, INC. (4)
8337175 Disposable pumping system and coupler 4 2009
* 2011/0150,680 Disposable Pumping System and Coupler 0 2009
8932269 Disposable pumping system and coupler 1 2012
9341184 Disposable pumping system and coupler 2 2015
 
Bendix Europe Services Techniques (1)
* 5167495 Reciprocating hydraulic pump 1 1991
 
INTERPUMP CLEANING S.P.A. (2)
* 5741124 Double insulated electrically driven water pump 14 1995
* 5653584 Motor/pump mounting arrangement for a vertically mounting high pressure water pump 17 1995
 
TECHTRONIC OUTDOOR PRODUCTS TECHNOLOGY LIMITED (4)
7854398 Hand held pressure washer 4 2006
8444068 Dual flow pressure washer 2 2008
8425203 Portable pressure washer system 6 2009
* 2009/0269,218 PORTABLE PRESSURE WASHER SYSTEM 6 2009
* Cited By Examiner