Hydraulic pulse wrench

Details Hydraulic pulse wrench Hydraulic pulse wrench

1987-09-28

1989-06-13

Schmidt, Frederick R.

Tools

Including tool driving by impact delivering component or...

Structurally constrained to arcuate movement

81466, 81463, 173 935, B25B 702

Patent

active

048381330

ABSTRACT:
An improved hydraulic pulse wrench provided with a hydraulic pulse generator has a liner, an anvil rotatably mounted in the liner and having a longitudinal slit, and two blades loosely mounted in the longitudinal slit. The liner has an elliptic hole. The two blades have their outer edges beveled in different directions. The anvil has a pair of axial ridges and the liner has on its inner periphery a total of five axial ridges. The blades, anvil and liner cooperate with one another to form pressure chambers while the liner is rotated.

REFERENCES:
patent: 3196636 (1965-07-01), Piatt et al.
patent: 4418764 (1983-12-01), Mizobe
patent: 4553948 (1985-11-01), Tatsuno

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