Hydraulic cylinder

Power plants – Pressure fluid source and motor – Pulsator

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C060S588000, C092S1650PR

Reexamination Certificate

active

11103869

ABSTRACT:
A hydraulic cylinder includes a housing having a fluid connection for connecting to a hydraulic system and an after-running connection for connecting to a fluid after-running vessel, and a piston which is axially displaceable in the housing to define a variable pressure space having a gas collecting portion, the piston being fixed against rotation in the housing and having at least one after-running groove which is oriented substantially toward the gas collecting portion. A primary seal arranged in the housing and receiving the piston therethrough is bridged by the after-running groove when the piston is in an extended end position, whereby the gas collecting portion of the pressure space communicates with the after-running connection when the piston is in the extended end position.

REFERENCES:
patent: 4359869 (1982-11-01), Ideta
patent: 4781026 (1988-11-01), Kuromitsu
patent: 4896584 (1990-01-01), Stoll et al.
patent: 4945728 (1990-08-01), Coleman
patent: 4945729 (1990-08-01), Hayashida et al.
patent: 5161376 (1992-11-01), Hartmann
patent: 5794512 (1998-08-01), Prosch et al.
patent: 6272858 (2001-08-01), Takano et al.
patent: 6336329 (2002-01-01), Adler et al.
patent: 6378304 (2002-04-01), Angione
patent: 6581380 (2003-06-01), Dangel et al.
patent: 6584771 (2003-07-01), Keller et al.
patent: 6732517 (2004-05-01), Zehnder, II et al.
patent: 6769254 (2004-08-01), Heller et al.
patent: 7059128 (2006-06-01), Rammhofer
patent: 2003/0172651 (2003-09-01), Zehnder, II et al.
patent: 2004/0020201 (2004-02-01), Feigel et al.
patent: 199 53 286 (2001-05-01), None
patent: 103 21 288 (2003-12-01), None
patent: 1 391 615 (2004-02-01), None
patent: 1 335 901 (1963-08-01), None
patent: 2 286 049 (1995-08-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Hydraulic cylinder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydraulic cylinder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic cylinder will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3772662

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.