Patent US3941246A successfully refreshed from Google Patents.
US3941246A
Expired / Lapsed
US
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Package for radiographic films
Assignee: Agfa Gevaert NV
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Filing: 1974-04-19
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Granted: 1976-03-02
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Expires: 1994-04-19
Abstract
Abstract A belt-forming package, intended for use in packaging radiographic dental films is presented. The package is characterized in that the film materials are separately packed in such a way that taking one film packet out of the belt is facilitated by the provision of zones of less mechanical strength at the circumference of each separate packet. Opening of the separate packets puts no problems as a lip-like portion having an asymmetric wave-type form is overlappingly sealed to another portion so that the rupturing of the seal between both portions, causing the opening of the concerning separate packet is facilitated.
Inventors
- 👤 Emanuel Hubert Duden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:25
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/40; B65D75/42; B65D75/44; B65D81/00; B65D81/24; B65D81/30; G; G03; G03C; G03C3/00; G03C3/003; Y; Y10; Y10S; Y10S206/00; Y10S206/82
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
131 words
A continuous belt package for a multiplicity of sheet-like materials from which the sheet-like materials can be removed one by one without disrupting the belt continuity, comprising a continuous supporting web of a width somewhat exceeding the material width, a top web constituted of two continuous strips arranged in overlapping relation along their mutually inner edges and having an overall width generally equal to said supporting web, a multiplicity of said materials disposed in lengthwise spaced relation between said webs, the margins of said webs around the periphery of the individual materials being sealed together, at least one of said webs having a zone of weakness around the material periphery to permit the same to be separated from the remainder of the belt package for removal of the individual materials therefrom.
Claim 2
Dependent Claim
131 words
A continuous belt package for a multiplicity of sheet-like materials from which the sheet-like materials can be removed one by one without disrupting the belt continuity, comprising a continuous supporting web of a width somewhat exceeding the material width, a top web constituted of two continuous strips arranged in overlapping relation along their mutually inner edges and having an overall width generally equal to said supporting web, a multiplicity of said materials disposed in lengthwise spaced relation between said webs, the margins of said webs around the periphery of the individual materials being sealed together, at least one of said webs having a zone of weakness around the material periphery to permit the same to be separated from the remainder of the belt package for removal of the individual materials therefrom.
Claim 3
Dependent Claim
22 words
The belt package of claim 1 wherein the inner edge of the uppermost of said overlapping strips has a generally wave-form configuration.
Claim 4
Dependent Claim
25 words
The belt package of claim 2 wherein said wave-form edge of the uppermost strip defines inwardly-projecting tongues located in spaced relation corresponding to said materials.
Claim 5
Dependent Claim
14 words
Package according to claim 2, wherein said wave-form edge has an asymmetric wave-type form.
Claim 6
Dependent Claim
16 words
Package according to claim 1, wherein the zones of weakness is formed as front part incision.
Claim 7
Dependent Claim
25 words
Package according to claim 1, wherein said zones of weakness is a reduced thickness which is smaller than the total thickness of the composing webs.
Claim 8
Dependent Claim
24 words
Package according to claim 6, wherein said zones of weakness is obtained by the application of pressure during the sealing of both webs together.
Claim 9
Dependent Claim
19 words
Package according to claim 1, wherein said zones of less mechanical strength are defined by a line of perforations.
Claim 10
Dependent Claim
18 words
Package according to claim 1, wherein the material used for the production of the webs is polyvinyl chloride.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-02 | 1979-09-01 | 1980-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-02 | 1983-09-01 | 1984-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-02 | 1987-09-01 | 1988-03-02 | $7700.00 | Window Closed / Lapsed |