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:
Mar. 12, 1985
Filed:
Mar. 03, 1982
Leo Larikka, Vaasa, FI;
G.A. Serlachius Oy, Mantta, FI;
Abstract
An apparatus for making a hole and a collar in the side of a pipe has a pipe-fastening portion mounted on a stand for holding the pipe and has a hole-making portion for making the hole in the pipe during movement in a first direction. There is also a collaring portion for collaring the edges of the hole during movement in a second direction. The hole-making portion and the collaring portion are mounted on the stand and rotated to produce the desired working action. A variable-speed feeder mounted between the stand and the hole-making and collaring portion effects relative vertical displacement between the stand and pipe-fastening portion and the hole-making and collaring portions. The feeder has a cam element for controlling the rate and extent of the vertical displacement and thereby the movement of the hole-making and collaring portions relative to the pipe. The cam element has a cam surface for forcing the collaring portion to effect a movement thereof in the second direction for forming the collar on the pipe. The cam surface limits the movement of the feeder in the first direction.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile