Plastic closure for bottles and the like

Details Plastic closure for bottles and the like Plastic closure for bottles and the like

1985-09-11

1987-02-24

Norton, Donald F.

Bottles and jars

Closures

Cap type

215344, 215DIG1, B65D 4104

Patent

active

046450882

ABSTRACT:
A one-piece plastic cap for the application to the externally threaded neck of a bottle has an end wall with a concave inner side which is provided with at least one elastic annular lip bearing against the end face of the neck when the internal thread or threads of the skirt of the cap mate with the external thread or threads of the neck. The configuration of the lip is such that the sealing action between its annular edge and the end face of the neck increases with increasing pressure in the interior of the bottle. The external surface of the end wall is formed with reinforcing ribs which radiate from the center of the end wall and can also extend along the exterior of the internally concave intermediate portion connecting the marginal portion of the end wall with the skirt. The ribs prevent pronounced expansion of the end wall and/or intermediate portion of the cap in response to establishment of a pronounced pressure differential between the interior and the exterior of the sealed bottle.

REFERENCES:
patent: 4089463 (1978-05-01), Babiol
patent: 4269320 (1981-05-01), Virog et al.
patent: 4392579 (1983-07-01), Uhlig et al.
patent: 4416383 (1983-11-01), Frahm et al.
patent: 4429802 (1984-02-01), Marks

Affiliated with

Also associated with

Rating

Plastic closure for bottles and the like does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-104018