Patent US3794399A successfully refreshed from Google Patents.
US3794399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic apparatus for motion picture projection
Assignee: Polaroid Corp
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Filing: 1973-01-22
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Granted: 1974-02-26
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Expires: 1993-01-22
Abstract
Abstract Projector for use with a motion picture film cassette, employing a housing having a front viewing face and a cassette-receiving cavity in communication with the top surface of the housing. A door member mounted at the rear of the opening and configured to block the opening when pivoted into closing position thereacross, carries a cassette-receiving guide which is adapted to receive the cassette from the front of the projector when the door is in its open position and to carry it to an operative location in the cavity when the door is pivoted to its closed position. The door is adapted to displace a drive mechanism of the apparatus into operative relation with the cassette, and the guide is coupled to the door through a lost motion member such that the cassette remains fixed in its operative location during engagement and disengagement of the drive mechanism. Additionally, a handle member is pivotally attached to the apparatus for selective displacement from a first position flush with a surface of the housing to a depressed position where it effects displacement of the door from its closed position and to an upright position where it is accessible for carrying of the unit.
Inventors
- 👤 J Conner
- 👤 H Salvador
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:01
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/26; G03B17/265
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
141 words
Photographic apparatus for use with a motion picture cassette, said apparatus comprising: a housing having an opening configured to facilitate the insertion of such cassette into and subsequent removal of such cassette from said apparatus; a closure member displaceably mounted on said housing for movement between a first position wherein it blocks said opening and a second position wherein it does not block said opening; and means including a hand engageable member for effecting displacement of said closure member from its said first position and for facilitating carrying of said apparatus, said means displaceably mounted on said housing for movement at least between a first position wherein it effects displacement of said closure member from its said first position and a second position wherein said hand engageable member is accessible for grasping thereof by an operator for carrying of said apparatus.
Claim 2
Dependent Claim
141 words
Photographic apparatus for use with a motion picture cassette, said apparatus comprising: a housing having an opening configured to facilitate the insertion of such cassette into and subsequent removal of such cassette from said apparatus; a closure member displaceably mounted on said housing for movement between a first position wherein it blocks said opening and a second position wherein it does not block said opening; and means including a hand engageable member for effecting displacement of said closure member from its said first position and for facilitating carrying of said apparatus, said means displaceably mounted on said housing for movement at least between a first position wherein it effects displacement of said closure member from its said first position and a second position wherein said hand engageable member is accessible for grasping thereof by an operator for carrying of said apparatus.
Claim 3
Dependent Claim
49 words
The apparatus of claim 1 including means for latching said closure member in its blocking position across said opening and said means for displacing said closure member being configured for effecting the release of said latching means responsive to location of said displacing means in its said first position.
Claim 4
Dependent Claim
42 words
The apparatus of claim 2 wherein said hand engageable member is coupled to the top surface of said housing for providing a fulcrum positioned close to a vertical plane of said housing which passes near the center of gravity of said apparatus.
Claim 5
Dependent Claim
84 words
The apparatus of claim 1 wherein said displacing means is a U-shaped member comprising a centrally located hand grip portion and a pair of lever members depending in spaced parallel relation therefrom, and said lever members are pivotally coupled at their distal ends to the top surface of said housing for displacement of said hand grip portion between a first position wherein it is spaced from said top surface and a second position wherein it is disposed in close proximity to said top surface.
Claim 6
Dependent Claim
87 words
The apparatus of claim 1 including means for latching said closure member in its said first position, said latching means displaceably mounted on said housing for movement between a first position wherein it latches said door when it is in its said first position and a second position wherein it releases said door from its said first position, and said displacing means configured for engaging said latching means and displacing it to its said second position when said displacing means is moved to its said first position.
Claim 7
Dependent Claim
161 words
Photographic apparatus for use with a motion picture cassette, said apparatus comprising: a housing having an opening configured to facilitate the insertion of such cassette into and subsequent removal of such cassette from said apparatus; first means, displaceably mounted on said housing for movement between a first and a second position, for receiving such cassette when said means is in its said first position and for positioning such cassette within said apparatus when said first means is displaced to its said second position; and second means including a hand engageable member for effecting displacement of said first means from its said second position and for facilitatiNg carrying of the apparatus, said second means displaceably mounted on said housing for movement at least between a first position wherein it effects displacement of said first means from its said first position and a second position wherein said hand engageable portion is accessible for grasping thereof by an operator for carrying of said apparatus.
Claim 8
Dependent Claim
161 words
Photographic apparatus for use with a motion picture cassette, said apparatus comprising: a housing having an opening configured to facilitate the insertion of such cassette into and subsequent removal of such cassette from said apparatus; first means, displaceably mounted on said housing for movement between a first and a second position, for receiving such cassette when said means is in its said first position and for positioning such cassette within said apparatus when said first means is displaced to its said second position; and second means including a hand engageable member for effecting displacement of said first means from its said second position and for facilitatiNg carrying of the apparatus, said second means displaceably mounted on said housing for movement at least between a first position wherein it effects displacement of said first means from its said first position and a second position wherein said hand engageable portion is accessible for grasping thereof by an operator for carrying of said apparatus.
Claim 9
Dependent Claim
72 words
The apparatus of claim 6 wherein said first means comprises a guide member displaceably mounted on said housing for movement between a first and second position, and said guide member configured to slideably receive such cassette when said member is in its said first position and to carry it within said opening and position it at a predetermined location within said apparatus when said member is displaced to its said second position.
Claim 10
Dependent Claim
41 words
The apparatus of claim 7 additionally including means for releasably latching said guide member in its said second position, and said second means being configured to release said latching means when said second means is disposed in its said first position.
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) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |