US4361391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film magazine holding device for camera
Assignee: Canon Inc
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Filing: 1981-07-13
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Granted: 1982-11-30
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Expires: 2001-07-13
Abstract
Abstract A film magazine holding device for a camera wherein the film magazine loading chamber is provided with a spring member for pushing the film magazine against the upper surface or the lower surface of the loading chamber so as to prevent the opening in the film magazine, through which the film is drawn out of the magazine, from being brought out of a determined position in the opened and the closed state of the back cover.
Inventors
- 👤 Shosuke Haraguchi
- 👤 Ryoichi Yoshikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:16
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/28; G03B17/30; G03B2217/00; G03B2217/26; G03B2217/268
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
119 words
A film magazine holding device for a camera comprising: a camera body including a back cover; a film magazine loading chamber provided on the camera body; film magazine holding means provided at one end of said film magazine chamber, said holding means having an end which is larger than the lower end of a film magazine which may be placed in said chamber, said holding means operating to push the loaded film magazine against the end of said film magazine chamber opposite said one end, whereby an opening in said film magazine through which film is drawn outwardly therefrom will not be rotated out of a predetermined position in the opened and the closed state of the back cover.
Claim 2
Dependent Claim
119 words
A film magazine holding device for a camera comprising: a camera body including a back cover; a film magazine loading chamber provided on the camera body; film magazine holding means provided at one end of said film magazine chamber, said holding means having an end which is larger than the lower end of a film magazine which may be placed in said chamber, said holding means operating to push the loaded film magazine against the end of said film magazine chamber opposite said one end, whereby an opening in said film magazine through which film is drawn outwardly therefrom will not be rotated out of a predetermined position in the opened and the closed state of the back cover.
Claim 3
Dependent Claim
18 words
A film magazine holding device in accordance with claim 1, wherein said holding means comprise a U-shaped spring.
Claim 4
Dependent Claim
27 words
A film magazine holding device in accordance with claim 2, wherein said spring is mounted on the surface of said one end of said film magazine chamber.
Claim 5
Dependent Claim
26 words
A film magazine holding device in accordance with claim 2, wherein said spring is mounted on the surface of the internal wall of said magazine chamber.
Claim 6
Dependent Claim
151 words
A film magazine holding device for a camera comprising: a camera body including a back cover; a film magazine loading chamber provided in the camera body; spring means provided at one end of said film magazine loading chamber, said spring means having an end which is larger than the lower end of a film magazine which may be inserted in said chamber, said spring means operating to urge a loaded film magazine against an end of said film magazine loading chamber opposite said one end; a groove provided in the internal wall of said film magazine loading chamber at said one end thereof, whereby said end of said spring means is positioned in said groove; said device operating to prevent an opening in said film magazine through which film is drawn therefrom from being rotated out of a determined position in the opened and the closed state of the back cover.
Claim 7
Dependent Claim
151 words
A film magazine holding device for a camera comprising: a camera body including a back cover; a film magazine loading chamber provided in the camera body; spring means provided at one end of said film magazine loading chamber, said spring means having an end which is larger than the lower end of a film magazine which may be inserted in said chamber, said spring means operating to urge a loaded film magazine against an end of said film magazine loading chamber opposite said one end; a groove provided in the internal wall of said film magazine loading chamber at said one end thereof, whereby said end of said spring means is positioned in said groove; said device operating to prevent an opening in said film magazine through which film is drawn therefrom from being rotated out of a determined position in the opened and the closed state of the back cover.
References Cited (Backward Citations)
US3276341A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-29 | 1986-05-31 | 1986-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-29 | 1990-05-31 | 1990-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-29 | 1994-05-31 | 1994-11-30 | $7700.00 | Window Closed / Lapsed |