US5134429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instant photographic apparatus
Assignee: Ricoh Co Ltd
•
Filing: 1991-04-17
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Granted: 1992-07-28
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Expires: 2011-04-17
Abstract
Abstract A peel-apart type instant photographic apparatus using a negative film and a positive sheet. The apparatus has a dark box for developing and accommodating the negative film and positive sheet, or supply, joined together and having a developer spread therebetween. The dark box is removable from the apparatus body and, therefore, easy to clean and handle. When the dark box is not mounted on the apparatus body in predetermined conditions, a printing operation is inhibited to eliminate the waste of negative sheets and positive sheets. A printing operation is also inhibited when the supply is left in the dark box.
Inventors
- 👤 Masahiro Ishikawa
- 👤 Koji Ozaki
- 👤 Harumitsu Mashiko
- 👤 Takashi Seto
- 👤 Kazuhisa Takahashi
- 👤 Fumihiko Hoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:59
CPC Classifications
G; G03; G03D; G03D9/00; G03D9/02; G03B; G03B27/00; G03B27/32
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
58 words
A peel-apart type instant photographic apparatus using a combination of a negative film and a positive sheet, comprising: developing rollers; and a dark box removably mounted on a body of said apparatus downstream of said developing rollers for developing and accommodating a negative film and a positive sheet joined with each other and having a developer spread therebetween.
Claim 2
Dependent Claim
58 words
A peel-apart type instant photographic apparatus using a combination of a negative film and a positive sheet, comprising: developing rollers; and a dark box removably mounted on a body of said apparatus downstream of said developing rollers for developing and accommodating a negative film and a positive sheet joined with each other and having a developer spread therebetween.
Claim 3
Dependent Claim
34 words
An apparatus as claimed in claim 1, wherein said dark box comprises a supply loading member for loading the laminate thereon, and a lid member rotatably and removably mounted on said supply loading member.
Claim 4
Dependent Claim
67 words
An apparatus as claimed in claim 2, further comprising: lid sensing means for determining whether or not said lid member is open and whether or not said lid member is present; and control means responsive to an output of said lid sensing means for inhibiting a printing operation when said lid member is open or when said lid member is not mounted on said supply loading member.
Claim 5
Dependent Claim
56 words
An apparatus as claimed in claim 3, further comprising supply sensing means mounted on said body of said apparatus downstream of said developing rollers for sensing the joined negative film and positive sheet, said control means inhibiting a printing operation when said supply sensing means determines that the joined negative film and positive sheet are present.
Claim 6
Dependent Claim
83 words
An apparatus as claimed in claim 4, wherein said lid member comprises a projection located at a non-image side of the joined negative film and positive sheet and in such a position that said projection abuts against the leading edge of the joined negative film and positive sheet when the trailing edge of the joined negative film and positive sheet move away from said supply sensing means; said supply loading member comprising a recess with which said projection of said lid member mates.
Claim 7
Dependent Claim
48 words
An apparatus as claimed in claim 1, further comprising: dark box sensing means for determining whether or not said dark box is present; and control means responsive to an output of said dark box sensing means for inhibiting a printing operation when said dark box is not mounted.
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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) | 1995-07-28 | 1996-01-27 | 1996-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-28 | 2000-01-27 | 2000-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-28 | 2004-01-27 | 2004-07-28 | $7700.00 | Window Closed / Lapsed |