Plug and filter assembly for paint sprayer

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4555337
SERIAL NO

06663868

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A plug and filter assembly for a paint sprayer is characterized by a hand turnable knob that is rotatably coupled to a sealing plug to reduce the torque needed to install or remove the assembly from a paint head by axially advancing the plug into or out of an O-ring seal without having to turn the plug in the O-ring. The rotatable coupling is effected by a fastener having a head and a cylindrical shank portion which is received in an oversized central axial bore in the knob. The cylindrical shank portion has a diameter greater than that of a threaded end portion of the fastener secured in the plug and thus defines a shoulder which engages an axial end face of the plug positively to fix the axial spacing between the fastener head and plug to a distance greater than the axial length of a portion of the knob axially trapped between the fastener head and plug for free nonbinding rotation of the knob. A filter screen is coaxially connected to the plug by a coil spring and inner and outer end caps for insertion and removal of the assembly as a unit.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
WOOSTER BRUSH COMPANY THE A CORP OF OH604 MADISON AVENUE WOOSTER OH 44691

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gargas, Eugene F Wooster, OH 4 32

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