Hydraulic cylinder with improved dashpot and porting

Details Hydraulic cylinder with improved dashpot and porting Hydraulic cylinder with improved dashpot and porting

1978-04-05

1980-06-17

Maslousky, Paul E.

Motors: expansible chamber type

Working member position responsive motive fluid control

Exhaust control

91409, F15B 1522

Patent

active

042078024

ABSTRACT:
Apparatus is disclosed for an improved hydraulic piston and cylinder design wherein grooves in the piston surface create a dashpot effect at the respective ends of piston stroke and assist hydraulic oil porting into the cylinder for improved response during stroke reversal, where the piston at least partially covers the cylinder oil flow port.

REFERENCES:
patent: 2974643 (1961-03-01), Gillham et al.
patent: 3425498 (1969-02-01), Bick
patent: 3568571 (1971-03-01), Hoen et al.
patent: 3626812 (1971-12-01), Trick
patent: 3776100 (1973-12-01), Yeh

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