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:
Apr. 04, 1978
Filed:
May. 14, 1976
Kubota, Ltd., Osaka, JA;
Abstract
A joint connecting the plug of one pipe to the socket of another pipe and permitting relative axial movement between the pipes includes a step surface formed on the end of the plug and engageable by a split lock ring fitted into an annular groove formed in the inner surface of the socket. The lock ring is contractable into fitted relation with the plug and is provided at its ends with overlapping portions engageable by a retaining member insertable through the clearance between the socket and plug to maintain the lock ring in contracted position. The overlapping portions are preferably provided on separate pieces adjustably mounted on the ends of the split lock ring. A jig, insertable through the clearance between the plug and the socket into engagement with the ends of the lock ring, is provided for contracting the lock ring prior to the insertion of the retaining member.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile