US4928827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-tight cassette
Assignee: Fujifilm Holdings Corp
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Filing: 1988-04-29
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Granted: 1990-05-29
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Expires: 2008-04-29
Abstract
Abstract A light-tight cassette for a roll of light-sensitive photographic material, which may be readily assembled, and is constituted by a tubular body portion and molded end caps. The end caps have uniformly spaced outer and interior flanges forming a channel engaging the end margins of said body portion, said outer flange having along its corner portions extensions which have an axial dimension exceeding the axial dimension of the interior flange. The interfitting relationships between ensure maximum effectiveness in protecting light tightness.
Inventors
- 👤 Yoshio Hara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:14
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/58; G03B27/587; G03B27/588
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
A light-tight cassette for holding a roll of light sensitive material and which includes a tubular body of polygonal cross-section; said body being open at each end thereof and having a slot adjacent to an edge of said body and extending along said body so as to provide an outlet opening through which said material passes; said slot provided with a construction for keeping light from reaching said material in said container through said slot; and, end cap means for closing said each end of said body comprising, an outer frame and an inner frame for said end cap means, said frames extending circumferentially of said cap means, said frames positioned at a substantially uniform distance from each other so that a groove is defined between said outer and inner frames with said each end of the body being received in said groove; and, a plurality of ribs being provided at regular intervals in said groove, wherein the open ends of the tubular body are provided with notches for receiving the ribs when the end caps are positioned to cover said each end of said body.
Claim 2
Dependent Claim
186 words
A light-tight cassette for holding a roll of light sensitive material and which includes a tubular body of polygonal cross-section; said body being open at each end thereof and having a slot adjacent to an edge of said body and extending along said body so as to provide an outlet opening through which said material passes; said slot provided with a construction for keeping light from reaching said material in said container through said slot; and, end cap means for closing said each end of said body comprising, an outer frame and an inner frame for said end cap means, said frames extending circumferentially of said cap means, said frames positioned at a substantially uniform distance from each other so that a groove is defined between said outer and inner frames with said each end of the body being received in said groove; and, a plurality of ribs being provided at regular intervals in said groove, wherein the open ends of the tubular body are provided with notches for receiving the ribs when the end caps are positioned to cover said each end of said body.
References Cited (Backward Citations)
GB888860A
Cited
US4179028A
Cited
US4148395A
Cited
US4244254A
Cited
US4272035A
Cited
US4597658A
Cited
US4671409A
Cited
US4787513A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-05-28 | 1993-11-27 | 1994-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-28 | 1997-11-27 | 1998-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-28 | 2001-11-27 | 2002-05-29 | $7700.00 | Window Closed / Lapsed |