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:
Feb. 14, 1984
Filed:
Mar. 15, 1982
Applicant:
Inventors:
William M Roberts, Deer Park, TX (US);
Fred L Herman, Houston, TX (US);
Assignee:
Hydra Systems Mfg, Inc., The Woodlands, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73 495 ; 138 90 ; 141327 ; 141285 ;
Abstract
Apparatus is disclosed for hydrostatically testing a length of pipe wherein the pipe is adapted to be closed by plugs at each end, one of the plugs having a port to which a hose leading from a pump may be connected in order to fill the pipe with water, and the other plug having a bleed valve through which air may be vented from the pipe as it is filled. Pump pressure is applied to the water in order to test the pipe, and water is then drained from the pipe to permit the pump hose to be disconnected from one plug for use in testing another length of pipe.