Implements or apparatus for applying pushing or pulling force – Fluid pressure – Vehicle attached
Patent
1983-10-31
1986-02-25
Foss, J. Franklin
Implements or apparatus for applying pushing or pulling force
Fluid pressure
Vehicle attached
248357, B66F 324
Patent
active
045724806
ABSTRACT:
An hydraulic prop utilized for barricades in blasting operations that affords simplified mounting and dismantling and will have minimal functional inefficiency if deformed by the impact of rocks; and it can be made out of unworked pipe of minimal standards. Two specific guide regions disposed on the piston are spaced large enough from each other that comparatively wide tolerances can be achieved between the piston and the cylinder.
REFERENCES:
patent: 2992477 (1961-07-01), Duncan et al.
patent: 3426995 (1969-02-01), Allinquant
patent: 4076214 (1978-02-01), Colly
patent: 4142449 (1979-03-01), Koppers et al.
patent: 4404893 (1983-09-01), Sigott et al.
Amling Friedel
Bohnes Karlheinz
Heintzmann Peter
Koppers Manfred
Foss J. Franklin
Rochumer Eisenhuette Heintzmann GmbH & Co. KG
Striker Michael J.
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