Patent US3616197A successfully refreshed from Google Patents.
US3616197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic lined receptacle or the like
Assignee: OI Glass Inc
•
Filing: 1969-12-10
•
Granted: 1971-10-26
•
Expires: 1989-12-10
Abstract
Abstract Molded pulp plate having continuous unseamed liner of polypropylene film bonded to its interior surfaces by pigmented polyamide ink, or a pigmented resin emulsion, which serves as adhesive and also provides all or part of a decorative design visible through the transparent film. Underside of polypropylene film may have further decorative printing of conventional ink, the adhesive being printed or coated thereover. Method includes clamping a sheet of polypropylene film, having the dried resin adhesive on its underside surface, against the smooth rim of the plate; heating the plate and film to a temperature which is above the softening point temperature of the resin constituent of the pigmented coating but below the softening point temperature of polypropylene; and drawing a vacuum through the bottom of the plate to press the film against the interior surfaces of the plate.
Inventors
- 👤 Stephen W Amberg
- 👤 Ralph G Amberg
- 👤 Frank S Landers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:59
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/12; B29; B29C; B29C51/00; B29C51/14; B29C51/16; B32B1/00; B32B27/32; B32B37/00; B32B37/12; B32B38/00; B32B38/14; B32B38/145; B32B38/18; B32B38/1858; B32B7/00; B32B7/04; B32B7/12; B65; B65D; B65D1/00; B65D1/34; B29C2795/00; B29C2795/002; B32B2255/00; B32B2255/10; B32B2255/26; B32B2451/00; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/1043; Y10T156/1044; Y10T156/1048; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/24893; Y10T428/24901; Y10T428/24934; Y10T428/31504; Y10T428/31725; Y10T428/3175; Y10T428/31757; Y10T428/31779; Y10T428/31783
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
15 words
The method according to claim 1 wherein said heat sensitive adhesive material comprises polyamide resin.
Claim 2
Dependent Claim
14 words
The method according to claim 1 wherein said heat sensitive adhesive material comprises polyvinylacetate.
Claim 3
Independent Claim
266 words
The method of lining the interior surfaces of a molded paper plate with a liner of initially flat, transparent plastic film material having a softening point temperature higher than substantially 200* F., said plate having a mouth rim, a bottom, and a peripheral sidewall portion extending between its said mouth rim and bottom, comprising the steps of printing ink decoration on one surface of said plastic film material, said ink decoration comprising an exposed layer of polyamide ink extending throughout an area conforming to the upwardly projected size and configuration of said plate, said polyamide having a softening point temperature higher than substantially 180* F., but lower than said softening point temperature of said plastic film material, heating at least said interior surfaces of said plate to a temperature at least equal to said softening point temperature of said polyamide ink but below said softening point temperature of the plastic film material, clamping said flat plastic film material against said plate mouth rim to span thereacross and whereby said ink decoration is in substantial registry with the upwardly projected configuration of the plate, said ink decoration surface of the film material facing down, and then drawing a vacuum through said plate bottom to stretch and press said plastic film material into contiguous conformiNg relation with said peripheral wall and bottom of the plate while maintaining the plate substantially at said temperature and while maintaining said plastic film material below its said softening point temperature, and subsequently cooling said plate whereby said polyamide ink firmly bonds said plastic film material to the interior surfaces of said plate.
Claim 4
Dependent Claim
44 words
The method according to claim 4 wherein, prior to said step of clamping said plastic film material against said plate mouth rim, said process further comprises the step of heating said layer of polyamide ink substantially to said softening point temperature of the polyamide.
Claim 5
Dependent Claim
13 words
The method according to claim 4, wherein said plastic film material is polypropylene.
Claim 6
Independent Claim
233 words
The method of applying plastic film liner in initially flat sheet form to the interior surfaces of an open topped receptacle having configuration providing a mouth rim at its open top and an interior sidewall surface extending generally downward from said mouth rim, said receptacle being of paper material, and said plastic film liner sheet being a polyolefin film, comprising the steps of applying to one surface of said plastic film liner sheet a coating of a liquid comprising a polyamide ink, said coating being nontacky when dry and said polyamide ink when dry having a softening point temperature which is lower than the softening point temperature of said plastic film, drying said coating, positioning said coated sheet on and spanning across said receptacle mouth rim, said coated surface of said sheet facing down, stretching and pressing said sheet into contiguous conforming relation with said receptacle surfaces while holding said sheet against said receptacle mouth rim and while applying heat to said coating at a temperature at least equal to the softening point temperature of said dried polyamide ink but below the softening point temperature of said plastic film and while maintaining said plastic film at a temperature below its softening point temperature, and subsequently cooling said coating to a temperature below said softening point temperature of the polyamide ink, whereby said coating adhesively secures said plastic liner sheet to said receptacle surfaces.
Claim 7
Dependent Claim
19 words
The method according to claim 7 wherein said receptacle is of molded pulp material, and said polyolefin is polypropylene.
Claim 8
Independent Claim
253 words
The method of applying a plastic film liner in initially flat sheet form to the interior surfaces of an open topped receptacle having configuration providing a mouth rim at its open top and an interior sidewall surface extending generally downward from said mouth rim and a bottom, said receptacle being of molded pulp material, and said plastic film liner sheet being a polyolefin film, comprising the steps of applying to one surface of said plastic film liner sheet a coating of a pigmented resin emulsion comprising a polyvinylacetate, said coating being nontacky when dry and said resin emulsion when dry having a softening point temperature which is lower than the softening point temperature of said polyolefin film, drying said coating, positioning said coated sheet on and spanning across said receptacle mouth rim, said coated surface of said sheet facing down, drawing a vacuum through said receptacle bottom to stretch and press said sheet into contiguous conforming relation with said receptacle interior sidewall and bottom surfaces while holding said sheet against said receptacle mouth rim and while applying heat to said coating at a temperature at least equal to the softening point temperature of said dried resin emulsion but below the softening point temperature of said plastic film and while maintaining said plastic film at a temperature below its said softening point temperature, and subsequently cooling said coating to a temperature below said softening point temperature of said resin emulsion, whereby said coating adhesively secures said plastic film liner sheet to said receptacle surfaces.
Claim 9
Dependent Claim
11 words
The method according to claim 9 wherein said polYolefin is polypropylene.
Claim 10
Independent Claim
232 words
The method of lining the interior surfaces of an open topped paper receptacle with a liner of initially flat plastic film material, said plastic film material being transparent polypropylene, and said receptacle having configuration providing a mouth rim at its open top and at least an interior sidewall surface extending generally downward from said mouth rim, comprising the steps of applying a dryable pigmented resin emulsion coating to one surface of said plastic film material and permitting said coating to dry thereby forming a coated sheet, the resin in said coating having a softening point temperature which is lower than that of said plastic film material, positioning said coated sheet on and spanning across said receptacle mouth rim, said coated surface thereof facing down, holding said sheet against said receptacle mouth rim, applying fluid pressure to said sheet to stretch and press the same into contiguous conforming relation with all of the surfaces of said receptacle below its said mouth rim while applying heat to said coating at a temperature which is higher than said softening point temperature of said resin but below said softening point temperature of said plastic film material and while maintaining said plastic film material below its softening point temperature, and then cooling said coating to a temperature below said softening point temperature of the resin, whereby said coating bonds said plastic film material to said receptacle surface.
Claim 11
Dependent Claim
98 words
A plastic-lined dinner plate or the like comprising a base receptacle of molded pulp material having interior surfaces, an unseamed liner of transparent polypropylene film material in contiguous conforming relation with said base receptacle surfaces, said liner having a decorative printed pattern on the underside thereof, and resin material comprising polyamide ink disposed between and firmly bonding said liner to said base receptacle surfaces, said resin material being disposed on said liner beneath said printed pattern and extending throughout the area of interface between said liner and said surfaces, whereby said resin material is visible through said liner.
Claim 12
Dependent Claim
97 words
A plastic-lined dinner plate or the like comprising a base receptacle of molded pulp material having interior surfaces, an unseamed liner of transparent polypropylene film material in contiguous conforming relation with said base receptacle surfaces, said liner having a decorative printed pattern on the underside thereof, and resin material comprising polyvinylacetate disposed between and firmly bonding said liner to said base receptacle surfaces, said resin material being disposed on said liner beneath said printed pattern and extending throughout the area of interface between said liner and said surfaces, whereby said resin material is visible through said liner.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |