Dispensing – With lock or fastening seal – Single-use fastening seal
Patent
1997-10-09
2000-06-06
Kaufman, Joseph A.
Dispensing
With lock or fastening seal
Single-use fastening seal
222182, 222525, B67D 506
Patent
active
060707666
ABSTRACT:
The present invention relates to a substantially leak proof tamper-evident container closure that combines a reusable, push-pull spout with a snap-on tamper evident closure which is substantially tamper proof. The closure has first and second locking members characterized by the first locking member having an inward flange with an upturned locking edge forming an annular groove in the flange. The push pull resealable pour spout with an opening therein which is partially closed by a second top having a secondary opening therein and a plug space thereabove with upwardly angled legs formed integral with the closure. Integrated into the periphery of the secondary opening is at least one and preferably two annular flanges. The annular flanges engage and create a sealing contact with the annular surface of the plug to provide a seal which is leak proof after many uses. The lower edge of the push-pull pour spout contains a tamper evident band to indicate if the push-pull pour spout has been "tampered" with even in situations where the container closure has not been disturbed. The present invention also optionally provides a dust cover which encloses the push-pull pour spout closure when inserted on the container. The dust cover may be optionally provided with a tamper-evident sealing band which remains intact upon initial installation of the dust cover onto the container and which is broken when the dust cover is initially disturbed. When the dust cover is provided with a tamper-evident sealing band, the use of a band on the lower edge of the pour spout closure for providing tamper-evidency may be eliminated.
REFERENCES:
patent: 2789717 (1957-04-01), Demke
patent: 2805001 (1957-09-01), Biederman
patent: 2998902 (1961-09-01), Thomas et al.
patent: 3372833 (1968-03-01), Baranne
patent: 4746035 (1988-05-01), Anderson et al.
patent: 4815617 (1989-03-01), Cullum
patent: 4934546 (1990-06-01), Markley
patent: 5104008 (1992-04-01), Crisci
patent: 5285933 (1994-02-01), Gentes et al.
patent: 5456374 (1995-10-01), Beck
patent: 5465876 (1995-11-01), Crisci
patent: 5472120 (1995-12-01), Stebick et al.
patent: 5588562 (1996-12-01), Sander et al.
patent: 5655685 (1997-08-01), Carr et al.
patent: 5662247 (1997-09-01), Rapchak et al.
patent: 5680965 (1997-10-01), Beck
patent: 5810185 (1998-09-01), Groesbeck
patent: 5829611 (1998-11-01), Beck
International Plastics and Equipment Corporation
Kaufman Joseph A.
LandOfFree
Tamper evident closure does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tamper evident closure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tamper evident closure will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2207166