Can end

Details Can end Can end

2007-02-13

2007-02-13

Larson, Lowell A. (Department: 3725)

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

C072S379400, C413S008000, C413S056000

Reexamination Certificate

active

10680644

ABSTRACT:
A can end member has a center panel, a circumferential chuck wall, and a transition wall. The center panel is centered about a longitudinal axis and has a peripheral edge. The center panel also has a step portion located radially outwardly from the longitudinal axis. The step portion has an annular convex portion joined to an annular concave portion and displaces at least a portion of the center panel vertically in a direction parallel to the longitudinal axis. The curl defines an outer perimeter of the end member. The circumferential chuck wall extends downwardly from the curl to the transition wall. The transition wall connects the chuck wall with the peripheral edge of the center panel. The transition wall has a folded portion extending outwardly relative to the longitudinal axis.

REFERENCES:
patent: 3186583 (1965-06-01), Zundel
patent: 3434623 (1969-03-01), Cookson
patent: 3525455 (1970-08-01), Saunders
patent: 3705563 (1972-12-01), Elser
patent: 3765352 (1973-10-01), Schubert et al.
patent: 3837524 (1974-09-01), Schubert et al.
patent: 3853080 (1974-12-01), Zundel
patent: 3868919 (1975-03-01), Schrecker et al.
patent: 3871314 (1975-03-01), Stargell
patent: 3941277 (1976-03-01), McKinney et al.
patent: 3945334 (1976-03-01), Ostrem et al.
patent: 3990376 (1976-11-01), Schubert et al.
patent: 4031837 (1977-06-01), Jordan
patent: 4055134 (1977-10-01), Ostrem et al.
patent: 4084721 (1978-04-01), Perry
patent: 4093102 (1978-06-01), Kraska
patent: 4116361 (1978-09-01), Stargell
patent: 4217843 (1980-08-01), Kraska
patent: 4324343 (1982-04-01), Moller
patent: 4434641 (1984-03-01), Nguyen
patent: 4448322 (1984-05-01), Kraska
patent: 4571978 (1986-02-01), Taube et al.
patent: 4577774 (1986-03-01), Nguyen
patent: 4641761 (1987-02-01), Smith et al.
patent: 4680917 (1987-07-01), Hambleton
patent: 4685849 (1987-08-01), LaBarge et al.
patent: 4704887 (1987-11-01), Bachmann et al.
patent: 4722215 (1988-02-01), Taube et al.
patent: 4804106 (1989-02-01), Saunders
patent: 4832223 (1989-05-01), Kalenak et al.
patent: 4991735 (1991-02-01), Biondich
patent: 5069355 (1991-12-01), Matuszak
patent: 5105977 (1992-04-01), Taniuchi
patent: 5143504 (1992-09-01), Braakman
patent: 5174706 (1992-12-01), Taniuchi
patent: 5823730 (1998-10-01), La Rovere
patent: 5950858 (1999-09-01), Sergeant
patent: 6024239 (2000-02-01), Turner et al.
patent: 6065634 (2000-05-01), Brifcani et al.
patent: 6089072 (2000-07-01), Fields
patent: 6234337 (2001-05-01), Huber et al.
patent: 6419110 (2002-07-01), Stodd
patent: 6425721 (2002-07-01), Zysset
patent: 6499622 (2002-12-01), Neiner
patent: 7036348 (2006-05-01), McClung
patent: 2001/0037668 (2001-11-01), Fields
patent: 2002/0050493 (2002-05-01), Ball et al.
patent: 2002/0158071 (2002-10-01), Chasteen et al.
patent: 2 303 943 (1974-05-01), None
patent: 25 54 264 (1977-06-01), None
patent: 8228681 (1983-10-01), None
patent: WO 96/37414 (1996-11-01), None
patent: WO 98/34743 (1998-08-01), None
patent: WO 01/41948 (2001-06-01), None
patent: WO02/00512 (2002-01-01), None
patent: WO02/43895 (2002-06-01), None
patent: WO02/057137 (2002-07-01), None
patent: WO02/057148 (2002-07-01), None
Provisional Specification for “Improvements in or relating to Closured Tins, Jars, or like Containers,” Patent No. 422,052, by Robert Barlow, and Arthur Leslie Stuchbery, Complete Specification Accepted: Dec. 31, 1934, Application Date: Jun. 29, 1933.
Complete Specification for “Improvements in the manufacture of tins or sheet metal containers, cans and the like,” Patent No. 107,340, by Saml. Hanson & Son, Limited, Accepted: May 3, 1939, Applicaion Date: May 3, 1938.

Affiliated with

Also associated with

Rating

Can end does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Can end, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Can end will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3863724