Title: Coupling for vacuum systems

Abstract: A coupling for a vacuum system includes a socket member and a plug member. The socket member has a body defining a through bore opening at a front face. A cover supporting a gasket is pivotally carried on the socket member and adapted to cover and seal the through bore opening. The plug member includes a body defining a tubular nipple dimensioned to be received within the socket member through bore. A seal is carried by the plug member and positioned to engage the front face of the socket member when the nipple is inserted into the socket member. A lock pin is carried by the cover and dimensioned to fit within a recess defined by the plug member body.

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Inventors: Boelkins, Wallace G. (Grand Rapids, MI, US)

Application Number: 966788
Filing Date: 1978-12-06
Publication_date: 1980-10-28
Assignee: Uni-Mist, Inc. (Grand Rapids, MI)
Primary Class(es): 285/7 285/24, 285/38, 285/317, 285/320, 285/901
Other Classes:
US Patent Ref:

1384491	Jul, 1921	Simmon	339/44.
1432583	Oct, 1922	Williams	285/320.
2636518	Apr, 1953	Strebel	251/114.
2771308	Nov, 1956	Vitcha et al.	285/317.
3480252	Nov, 1969	Simons	251/299.
3482205	Dec, 1969	Senior	339/44.
3682500	Aug, 1972	Hamrick	285/7.
3943325	Mar, 1976	Pickard	339/44.

Other Refs:
Primary Examiner: Arola, Dave W.
Assistant Examiner:
Attorney: Price, Heneveld, Huizenga & Cooper