Title: Hose coupling

Abstract: A hose coupling having a fixation collar with a tapered inner surface to be joined with a clamp for the coupling in which several jaws in the shape of tapered sectors are engaged in the collar while leaving a clearance between two successive jaws which form a substantially cylindrical surface surrounding the outer surface of the hose to be connected. A cylindrical sleeve is engageable inside the hose and is formed with a flange for bearing against the end face of the jaws and a tip portion which is slidable in a coaxial bore of the clamp, the diameter of said bore being greater to the inner diameter of the hose, so that a differential pressure area is established which applies pressure to the tip of the sleeve to drive it in a direction such that the flange engages the jaws.

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Inventors: Boyer, Jean-Jacques, deceased (late of Montchauvet, FR)
by Boyer, heir, Pascal

Application Number: 925205
Filing Date: 1978-07-17
Publication_date: 1980-10-21
Assignee:
Primary Class(es): 285/242 285/323
Other Classes:
US Patent Ref:

2880020	Mar, 1959	Audette	285/255.
2940778	Jun, 1960	Kaiser	285/255.
3222091	Dec, 1965	Marshall	285/255.
3226137	Dec, 1965	Trnka	285/255.

Other Refs: 24566781227327850131904948

Aug, 1976	DE
Mar, 1960	FR
Sep, 1960	GB
Sep, 1962	GB

Primary Examiner: Callaghan, Thomas F.
Assistant Examiner:
Attorney: Darby & Darby