US4522478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cover-equipped camera
Assignee: Pentax Corp
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Filing: 1983-01-31
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Granted: 1985-06-11
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Expires: 2003-01-31
Abstract
Abstract A cover-equipped camera includes a cover movable right and view left at the front of a camera body to shield or expose its lens and finder, and a fixed cover with and from which the movable cover is contacted or released. The opening and closing cover includes a sliding guide member integral to the cover, and sliders projected from the camera body. The movable cover is guided and slided with the sliders fitted into slits formed in the sliding guide member. When the movable cover is to be opened for exposure, a lock lever is released by the action of an operating lever to quickly open the movable cover. The movable cover is also kept open by magnetic force at the same time. The cover-equipped camera can achieve protection and dust-free effects, is excellent in quick shuttering capacity, and can take photos without failure.
Inventors
- 👤 Toru Kando
- 👤 Keisuke Haraguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:43
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/02; G03B17/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
259 words
A cover-equipped camera comprising: a camera body including a view finder and a photographic lens; a cover consisting of a fixed cover fixed to the camera body and a movable cover adapted to move laterally between a closed position where the view finder and photographic lens is covered by said fixed and movable covers and an opened position where the view finder and the lens are exposed between the fixed and movable covers; slider guide member support means projecting from the camera body and a sliding member provided on the movable cover and engaged with said support means to allow said lateral sliding movement of the movable cover, and wherein the sliding guide member is of a flattened U-shaped form and the straight portions of which are laterally run outside the lens, and the slider member support means comprises a collar adapted to be fitted into the flattened portions of the sliding guide member; means for constantly urging the movable cover towards the opened position; an engaging mechanism adapted to hold the movable cover at the closed position and comprising engaging projection means provided on the movable cover; a lock lever arranged on said fixed cover and adapted to engage with the engaging projection means when the movable cover is at the closed position; means to constantly bias said lock lever to the engaged position; an operating lever adapted to release the engagement between the engaging projection means and the lock lever when shifted against the biasing force; and means for stopping the movable cover at the opened position.
Claim 2
Dependent Claim
259 words
A cover-equipped camera comprising: a camera body including a view finder and a photographic lens; a cover consisting of a fixed cover fixed to the camera body and a movable cover adapted to move laterally between a closed position where the view finder and photographic lens is covered by said fixed and movable covers and an opened position where the view finder and the lens are exposed between the fixed and movable covers; slider guide member support means projecting from the camera body and a sliding member provided on the movable cover and engaged with said support means to allow said lateral sliding movement of the movable cover, and wherein the sliding guide member is of a flattened U-shaped form and the straight portions of which are laterally run outside the lens, and the slider member support means comprises a collar adapted to be fitted into the flattened portions of the sliding guide member; means for constantly urging the movable cover towards the opened position; an engaging mechanism adapted to hold the movable cover at the closed position and comprising engaging projection means provided on the movable cover; a lock lever arranged on said fixed cover and adapted to engage with the engaging projection means when the movable cover is at the closed position; means to constantly bias said lock lever to the engaged position; an operating lever adapted to release the engagement between the engaging projection means and the lock lever when shifted against the biasing force; and means for stopping the movable cover at the opened position.
Claim 3
Dependent Claim
16 words
A cover-equipped camera according to claim 1, wherein said lock lever is biased and shifted vertically.
Claim 4
Dependent Claim
55 words
The cover-equipped camera as claimed in claim 1, wherein the stopping means comprises a piece of iron and a cooperating magnet, and one of said piece of iron and said magnet being mounted on the camera body and the other of said piece of iron and said magnet being mounted on said sliding guide member.
Claim 5
Dependent Claim
87 words
The cover-equipped camera as claimed in claim 1, wherein the engaging projection means comprises two projections which run outside of the lens when the movable cover is being opened or closed, and the lock lever is of a flattened U-shape the ends of the straight portions of which are each provided with engaging portions to be engaged with the engaging projections, and the flattened portion being formed in the bottom portion of the U-shaped lock lever and being slidably engaged with projections provided on the camera body.
Claim 6
Dependent Claim
36 words
The cover-equipped camera as claimed in claim 1, wherein the means for urging the movable cover is a spring attached to the sliding guide member, and the lock lever is biased by a spring attached thereto.
Claim 7
Dependent Claim
50 words
The cover-equipped camera according to claim 1, wherein the sliding guide member, the slider guide member support means, and the stopper means are positioned inside of a front shielding wall of the camera body, and the lock lever and the engaging projections are positioned outside of the front shielding wall.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-10 | 1988-12-10 | 1989-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-10 | 1992-12-10 | 1993-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-10 | 1996-12-10 | 1997-06-11 | $7700.00 | Window Closed / Lapsed |