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:
Jul. 20, 1993
Filed:
Nov. 22, 1991
Applicant:
Inventor:
Ian Ashcroft, Purley, GB;
Assignee:
British Gas plc, , GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
138 89 ; 137-1 ;
Abstract
A pipe block for reversibly blocking the bore of a pipe comprises a body 2 having a shaft 3,4, a plurality, in this case three, spaced apart annular flanges 5 extending from the shaft to form a close fit with the internal wall 31 of the pipe 30 and structure in the form of a funnel 8 attached to the shaft for guiding the threaded end 23 of a rod 20 into an internally threaded bore 6 of the shaft.