Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
APPARATUS FOR TIGHTENING THREADED FASTENERS
Document Type and Number:
WIPO Patent Application WO/2015/127408
Kind Code:
A3
Abstract:
According to a first aspect of the invention we provide an automatic reaction pawl- assembly ("ARPA") which includes; a shaft assembly; a pawl fixed rotatably relative to the shaft assembly; and a torsion lever torsionally coupled with the paw) about the shaft assembly. Advantageously the ARPA enhances belting efficiency, increases torque accuracy and maximises operator safety. Torsion springs of the shaft assembly overcome a housing spring and automatically disengage the pawl from a ratchet wheel. The pawl releases without advancing the fastener, touching the tool or raising the hydraulic pressure beyond an intended torque value. This allows for hands free operation of one or more tools. During SWULTORC(R) the operator no longer needs to determine which tool; is locked on to its fastener.

Inventors:
KOPPENHOEFER PETER (US)
Application Number:
PCT/US2015/017172
Publication Date:
October 22, 2015
Filing Date:
February 23, 2015
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HYTORC DIVISION UNIEX CORP (US)
International Classes:
B25B21/00
Foreign References:
US20080060482A12008-03-13
US4448096A1984-05-15
US20040200320A12004-10-14
US3191465A1965-06-29
US20020121161A12002-09-05
US5301574A1994-04-12
Attorney, Agent or Firm:
BENDER, Justin, B. (Floor 9New York, NY, US)
Download PDF: