Title: Fluid truck snubber

Abstract: A piston and cylinder motion dampening device having spiral groove metering, an orificed two-way pressure relief valve, a screw-on spring and an over-extension seal retainer.

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Inventors: Farris, Richard C. (Joshua, TX, US)
Butler, William S. (Burleson, TX, US)

Application Number: 912125
Filing Date: 1978-06-02
Publication_date: 1979-12-18
Assignee: Halliburton Company (Duncan, OK)
Primary Class(es): 137/493.3 137/539.5, 137/541
Other Classes:
US Patent Ref:

824669	Jun, 1906	Moneuse	137/493.
2501139	Mar, 1950	Patrick	137/493.

Other Refs: 125170

Jun, 1949	SE

Primary Examiner: Nilson, Robert G.
Assistant Examiner:
Attorney: Tregoning; John H., Duzan; James R.