Hydraulic apparatus return to neutral mechanism

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United States of America Patent

PATENT NO 9141126
SERIAL NO

13712365

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A return to neutral mechanism is provided for hydraulic apparatuses such as motors/pumps that utilize a swashplate and a trunnion arm to control flow. The return to neutral mechanism includes two rotating brackets which have ends aligned to a single plane. Two springs are utilized and attached to the ends of the two rotating brackets giving the force mechanism the ability apply the force in a direct path, reducing friction, increasing life, and improving accuracy. This design is an “x” type mechanism, the force arms are in-line and do not cross, the force is applied equally on both sides of the fulcrum and therefore balanced. The mechanism can be can be used with compression springs, tension springs, torsion springs, or leaf springs.

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Patent Owner(s)

Patent OwnerAddress
PARKER INTANGIBLES LLC6035 PARKLAND BOULEVARD CLEVELAND OH 44124

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hynes, Richard C Chuckey, US 4 27
Richardson, Jason Scot Chuckey, US 15 86

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