Power plants – Pressure fluid source and motor – Pulsator
Patent
1994-11-14
1996-01-23
Look, Edward K.
Power plants
Pressure fluid source and motor
Pulsator
60592, 29243523, 29243525, F15B 710, B26B 1300
Patent
active
054857279
ABSTRACT:
A fastener installation tool of the push/pull type including an air piston driving a hydraulic piston and further including a head piston driven by the hydraulic piston and coacting with the hydraulic piston to form a closed loop hydraulic circuit. The hydraulic piston is a compound piston including a primary piston and a secondary piston mounted in a blind bore in the upper end of the primary piston. When hydraulic pressures in the closed loop hydraulic circuit exceed a predetermined limit, the secondary piston moves downwardly, against the bias of an internal spring, relative to the primary piston to reduce the overall volume of the compound piston and thereby reduce the pressure in the closed loop hydraulic circuit.
REFERENCES:
patent: 3039270 (1962-06-01), Simmons
patent: 3254522 (1966-06-01), Elliott et al.
patent: 3475945 (1969-11-01), Chirco
patent: 3713321 (1973-01-01), LaPointe
patent: 4587829 (1986-05-01), Sukharevsky
patent: 4597263 (1986-07-01), Corbett
patent: 4796455 (1989-01-01), Rosier
patent: 4813261 (1989-03-01), Rosier
patent: 4878372 (1989-11-01), Port et al.
patent: 4879875 (1989-11-01), Davert et al.
patent: 5072501 (1991-12-01), Vincenzo
patent: 5208959 (1993-05-01), Rosier et al.
patent: 5371933 (1994-12-01), Godfrey
GBP Corporation
Look Edward K.
Nguyen Hoang
LandOfFree
Fastener installation tool does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fastener installation tool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fastener installation tool will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1498543