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:
Nov. 24, 1981
Filed:
May. 07, 1980
Jozef T Franek, Chorley Wood, GB;
Metal Box Limited, Reading, GB;
Abstract
A can opener (10) has a cutter roll (40) for cutting an outer seam wall (49) of a double end seam (41) securing a can end (43) to a can body (45). A traction roll (20) of the opener (10) is engageable with the end seam (41) and is rotatable to drive the cutter roll (40) about the seam (41). An abutment (52) is provided to engage the end seam (41) to position the center (O.sub.c) of the cutter roll (40) behind that (O.sub.T) of the traction roll (20) in the direction of movement of the opener (10). The two rolls (20,40) have skew axes so that in use the cutter roll (40) cuts into the outer seam wall (49) ahead of a plane (P.sub.1) through the traction roll axis and the cutter roll center (O.sub.c), and so that a generator (51) of the cutter roll's curved surface (48 ) is inclined where the cutter roll (40) contacts the outer seam wall (49) from the cutting edge (50) towards a plane (P.sub.5) containing the top (47).