Title: Fluid sampler and minimum-included-air-coupling

Abstract: A coupling that permits a connection to be made to a fluid system with a minimum of included air, even though the coupled device is not pre-filled. The coupling is particularly advantageously employed as part of a sampler used to take fluid samples for analysis as to air content. It includes a valve housing, a valve seat slidable within the housing and a valve closure member slidable within the seat. A lost motion mechanism allows joint movement of the seat and closure member prior to disengagement of the seat from the closure member. The fluid passage by which fluid is withdrawn from the system extends through the closure member.

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Inventors: Magorien, Vincent G. (Granada Hills, CA, US)

Application Number: 860302
Filing Date: 1977-12-14
Publication_date: 1979-04-24
Assignee: Systron-Donner Corporation (Concord, CA)
Primary Class(es): 73/863.86 285/277
Other Classes:
US Patent Ref:

3174508	Mar, 1965	Zahuranec	285/277.
3267963	Aug, 1966	Hupp	285/316.
3778092	Dec, 1973	Magorien	285/316.
3791411	Feb, 1974	Bogeskov et al.	285/277.

Other Refs:
Primary Examiner: Queisser, Richard C.
Assistant Examiner: Roskos, Joseph W.
Attorney: Fulwider, Patton, Rieber, Lee & Utecht