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:
Dec. 28, 1982
Filed:
Sep. 04, 1979
Applicant:
Inventor:
Dwight W Fowler, Hillsboro, OR (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
285162 ; 285236 ; 285237 ;
Abstract
A tap is established in a sewer main by drilling an aperture in the sewer main and locating a rubber cylinder into said aperture wherein the end of said rubber cylinder is provided with toroidal protuberances immediately adjacent the exterior wall and interior wall of the sewer main. The rubber cylinder is thicker in the region between the protuberances, and an interior branch pipe is driven into the rubber cylinder for forcing the cylinder outwardly against the interior edge of the aperture in the sewer main while substantially locking the aforementioned protuberances in position. A branch pipe extension is connected either to the rubber cylinder or to the interior branch pipe.