The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 06, 1989
Filed:
Mar. 01, 1988
Grant D Farrell, Mississauga, CA;
Scepter Manufacturing Company Limited, Toronto, CA;
Abstract
A connection device for use in securing an end of a corrugated pipe to a fitting such as a terminal box connector or a pipe-to-pipe coupling has an array of fingers extending axially from an annular ring, for insertion into the fitting. Enlarged head portions at the inner ends of the fingers serve to engage the ribs or corrugations on the pipe outer surface, when a pipe is inserted therepast, and also provide a differentiated camming action to secure engagement of the head portions with a corrugation of the pipe and to prevent withdrawal of the pipe from the fitting. The fitting with which the device is combined also has an axially extended inner peripheral seat against which the pipe corrugations seat, to preclude passage of concrete betwen the pipe and the fitting.