Pipe coupling
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 16, 1994
Grant Date -
N/A
app pub date -
Oct 19, 1992
filing date -
Nov 28, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
One end portion of a pipe, which has a circumferentially extending external bead at the one end portion, is insertable into the internal sockets of an array of arms which are axially movably received in one end portion of a sleeve. The arms have external surfaces which cooperate with an internal surface of the sleeve to permit limited axial movements of the arms between first and second positions. When in the first positions, the arms can be flexed radially outwardly to thus permit insertion of the bead into or its extraction from the sockets. The internal surface of the sleeve and/or the external surfaces of the arms can but need not be conical, either entirely or in part. The sleeve can be inserted into a bore or hole of a nipple on a radiator or carburetor in a motor vehicle. One or more O-rings or other suitable sealing elements are installed between the sleeve and the external surface of the one end portion of the properly installed pipe. The arms can be of one piece with a ring which is confined in the sleeve between the sealing element or elements and the arms.
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