Receptacles – Closures – With closure opening arrangements for means
Patent
1989-01-09
1990-02-20
Pollard, Steven M.
Receptacles
Closures
With closure opening arrangements for means
B65D 4132
Patent
active
049018809
ABSTRACT:
This invention provides an end member adapted for sealed engagement with a container member wherein the end member has a central end wall portion which includes a severable tab portion. A hinge portion is integral with the central end wall portion and has spaced apart ends. At least one severable score line groove is formed in the central end wall portion and has a main body portion having end portions which define the spaced apart ends of the hinge portion and also defines the severable tab portion which may be severed by axially inwardly directed forces applied thereto so as to form an outlet opening in the central end wall portion. The hinge portion retains the severed tab portion attached to the central end wall portion. One end portion of the severable score line groove has first and second sections with the first section having a score residual greater than the score residual of the main body portion to ensure that the tearing of the score line groove extends in a direction opposite to the first section and the second section has a score residual greater than the score residual of the first section so as to inhibit the tearing of the severable score line groove and extends in a direction transverse to the direction of extent of the hinge portion, and the other end portion extends in a direction away from the one end portion to ensure that the tearing of the score line groove does not extend along the hinge portion. The other end portion which defines one end of the hinge portion is arcuate.
REFERENCES:
patent: 3977561 (1976-08-01), Strobe et al.
patent: 4024981 (1977-05-01), Brown
patent: 4084721 (1978-04-01), Perry
patent: 4184607 (1980-01-01), Potts
patent: 4320850 (1982-03-01), Drolen Jr.
patent: 4402421 (1983-09-01), Ruemer Jr.
patent: 4684059 (1987-08-01), Rusnock
Hunter Alan D.
Tatham Richard L.
Adolf Coors Company
Pollard Steven M.
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