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특허 상세정보

Release mechanism for a hydraulic post driver

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) E02D-007/08   
미국특허분류(USC) 173/124 ; 173/84 ; 173/89 ; 173/202
출원번호 US-0220538 (1994-03-31)
발명자 / 주소
인용정보 피인용 횟수 : 24  인용 특허 : 0
초록

A release mechanism for a hydraulic/pneumatic post driver is described. The post driver has a hammer and a guide for directing the hammer from a raised release position along a substantially vertical downward impact path. A hydraulically or pneumatically actuated fluid expandable cylinder is disposed above the hammer and has a telescopically extendible piston for lifting the hammer to the raised release position. The improvement includes one of the piston and the hammer having a female member with inwardly directed gripping dogs. The other of the piston ...

대표
청구항

A release mechanism for an hydraulic post driver having a hammer, guide means for directing the hammer from a raised release position along a substantially vertical downward impact path, and a fluid expandable cylinder disposed above the hammer and having a telescopically extendible piston serving as means for lifting the hammer to the raised position, the improvement comprising: a hammer having a female top member with inwardly directed gripping dogs; a piston having a generally “V”shaped male member with arms outwardly biased by a spring, the outwardly...

이 특허를 인용한 특허 피인용횟수: 24

  1. Kenney,James J.; Schell,Craig A.. Activation arm assembly method. USP2007017165305.
  2. Kenney,James J.; Gross,Paul. Activation arm configuration for a power tool. USP2007047204403.
  3. Kenney, James J.; Berry, Alan; Schell, Craig A.; Gross, Paul. Cam and clutch configuration for a power tool. USP2012028123099.
  4. Brendel, Lee M.; Gross, Paul G.; Gregory, Larry E.. Cordless framing nailer. USP2015018939342.
  5. Brendel, Lee M; Gross, Paul G; Gregory, Larry E. Cordless framing nailer. USP2013098534527.
  6. Berry, Alan; Schell, Craig A.; Bradenbaugh, IV, Charles L.; Kenney, James J.; Gross, Paul. Driver configuration for a power tool. USP2010097789169.
  7. Baskar, Ashok S.; Bradenbaugh, Charles L.; Schell, Craig A.; Kenney, James J.; Gross, Paul G.. Driving tool with controller having microswitch for controlling operation of motor. USP2016119486905.
  8. Forster,Michael. Electric driving tool with driver propelled by flywheel inertia. USP2008017322506.
  9. Berry, Alan; Sauerwein, William D.; Schell, Craig A.; Elligson, Jeffrey A.; Bradenbaugh, IV, Charles L.; White, Howard T.; Kenney, James J.. Flywheel configuration for a power tool. USP2011098011549.
  10. Berry,Alan; Gross,Paul. Lock-out for activation arm mechanism in a power tool. USP2008027331403.
  11. Gross, Paul; Kenney, James J.; Xu, Weiyuan. Lower bumper configuration for a power tool. USP2010037686199.
  12. Garber, Stuart E.; Gross, Paul G.; Brendel, Lee Michael. Magnetic profile lifter. USP2016059346158.
  13. Brendel, Lee Michael; Gross, Paul G.. Multi-stranded return spring for fastening tool. USP2015129216502.
  14. Campling, Barry. Pile hammer. USP2005116966390.
  15. Cunningham, Roger. Pneumatic post driver. USP2004086776242.
  16. Gross, Paul G; Kenney, James J; Gregory, Larry E; Brendel, Lee M. Power take off for cordless nailer. USP2012118302833.
  17. Robson,Angus Peter. Powered hammer device. USP2008027331405.
  18. Brendel, Lee M.; Kenney, James J.; Gross, Paul G.; Denner, Jan Carl. Profile lifter for a nailer. USP2009077556184.
  19. Berry, Alan; Gross, Paul; Bradenbaugh, IV, Charles L.; Kenney, James J.. Return cord assembly for a power tool. USP2011077975893.
  20. Gross,Paul; Schell,Craig A.; Kenney,James J.; Berry,Alan. Solenoid positioning methodology. USP2009037503401.
  21. Brendel, Lee Michael; Gross, Paul G.; Baron, Michael P.. Stall release lever for fastening tool. USP2016079399281.
  22. Buck, John E.; Berry, Alan; Bradenbaugh, IV, Charles L.; Schell, Craig A.; Gross, Paul; Baskar, Ashok S.; Colello, Steven R.; Kenney, James J.. Structural backbone/motor mount for a power tool. USP2012078231039.
  23. Berry,Alan; Denner,Jan Carl; Schell,Craig A.; Bradenbaugh, IV,Charles L.; Baskar,Ashok S.; Kenney,James J.. Trigger configuration for a power tool. USP2006117138595.
  24. Gross, Paul; Schell, Craig A.; Kenney, James J.; Berry, Alan. Upper bumper configuration for a power tool. USP2010067726536.