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US3899117A Expired / Lapsed US ⏱️ 0.0 years remaining

Plastic end cap and paper body attachment

Assignee: IMPERIAL BONDWARE CORP A Corp OF
•
Filing: 1974-03-14
•
Granted: 1975-08-12
•
Expires: 1994-03-14
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Abstract

Abstract A plastic end cap for a tubular container body for capping the ends of the body. The cap has a center panel portion and a peripheral rim of U-shape cross-section having inner and outer parallel side walls and an interconnecting transverse end wall defining a groove for admitting an end edge portion of the container body. The side walls are provided with opposed dimples which project into the groove and are adapted to pinch and tightly hold without adhesives the end edge portion of the container body and to maintain the same in centered relation spaced from the side walls to provide passageways for hot melt cements such as microcrytaline waxes to flow unobstructively along the inner and outer sides of the end edge portion and thus provide a good seal. The dimples or projections are centered between the top and bottom edges of the side walls of the groove so that the cement will flow above and below them to provide a continuous perimetric seal.

Inventors

  • 👤 Harry A Peyser
  • 👤 Robert D Heaviside

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 04:38
CPC Classifications
B; B65; B65D; B65D15/00; B65D15/02; B65D15/04; B65D15/08

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 118 words
An end closure for a can body having a peripheral end edge portion, said closure being formed of plastic material and having a peripheral edging for axially telescoping over said edge portion, said edging comprising a pair of opposed walls and an intervening web defining an edgeportion admitting groove, a plurality of aligned opposing small nibs projecting from said walls into the groove and spaced lengthwise of the groove adapted for grasping engagement with the edge portion of an associated can body and operative to hold said walls apart in spacial relation to provide passage means between the walls and sides of the can body for reception of sealing compound therein on both sides of said edge portion.
Claim 2
Dependent Claim 118 words
An end closure for a can body having a peripheral end edge portion, said closure being formed of plastic material and having a peripheral edging for axially telescoping over said edge portion, said edging comprising a pair of opposed walls and an intervening web defining an edgeportion admitting groove, a plurality of aligned opposing small nibs projecting from said walls into the groove and spaced lengthwise of the groove adapted for grasping engagement with the edge portion of an associated can body and operative to hold said walls apart in spacial relation to provide passage means between the walls and sides of the can body for reception of sealing compound therein on both sides of said edge portion.
Claim 3
Dependent Claim 21 words
An end closure according to claim 1 and said nibs being spaced from the inner and outer edges of said walls.
Claim 4
Dependent Claim 25 words
The invention according to claim 2 and said outer edges of the walls being formed with curved portion for guiding the associated end edge therein.
Claim 5
Dependent Claim 20 words
The invention according to claim 3 and said nibs having side webs inwardly and having generally flat inner end node.
Claim 6
Dependent Claim 19 words
The invention according to claim 4 and said nibs being dished and relatively rigid with respect to said walls.
Claim 7
Dependent Claim 27 words
The invention according to claim 5 and said cover being formed of thermoplastic material and said nibs being meltable for bonding adherence to the container body walls.
Claim 8
Dependent Claim 14 words
The invention according to claim 7 and said end closure being made of polyethylene.
Claim 9
Dependent Claim 19 words
The invention according to claim 1 and said closure having a channel offset inwardly with respect to the edging.
Claim 10
Dependent Claim 31 words
The invention according to claim 1 and a container body having thermoplastic lining on said edge portions, and said nibs being of thermoplastic material and heatable to bond to said lining.

References Cited (Backward Citations)

US2350312A Cited
US2467182A Cited
US2471017A Cited
US2623685A Cited
US2638261A Cited
US2731190A Cited
US2990998A Cited
US3424343A Cited
US3317109A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-08-11 1979-02-10 1979-08-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-08-11 1983-02-10 1983-08-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-08-11 1987-02-10 1987-08-12 $7700.00 Window Closed / Lapsed

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