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. 11, 1979
Filed:
Aug. 22, 1978
Robert E Bunch, LaVerne, CA (US);
Other;
Abstract
Tool apparatus is provided for flaring the end portion of thermoplastic pipes and tubes, and includes a flaring head having a forming recess adapted to receive the pipe end portion and a cam edge portion adjacent to the recess for engaging the pipe end portion in a forming action. Mandrel means are threadedly connected with the flaring head for movement of the head toward the mandrel means about which the pipe being formed is clamped. The forming recess is defined by a frusto-conical surface inclined to the axis of the head in cooperation with an oppositely inclined surface, and the cam edge portion is defined between the frusto-conical surface and a side wall portion of the head. The diameter of the apex of the circular V intersection of the recess-defining surfaces is preferably equal to the outside diameter of the pipe.