Slide tray for a slide projector
Abstract
Abstract AN IMPROVED SLIDE TRAY FOR A SLIDE PROJECTOR IN WHICH THE TRAY HAS A COMPARTMENTED BODY MEMBER FOR SLIDES, AND IN ADDITION MAY HAVE A SLIDE RETAINING MEMBER CARRIED BY AND MOVABLE RELATIVE TO THE BODY MEMBER. WHEN A SLIDE TRAY OF THE LATTER TYPE IS MOUNTED IN A SLIDE PROJECTOR, THE SLIDE RETAINING MEMBER IS HELD IN A FIXED POSITION WITH A SLIDE EXIT SLOT THEREIN IN REGISTER WITH THE SLIDE PROJECTION GATE OF THE PROJECTOR. THE SLIDE TRAY HAS, AMONG OTHER THINGS, AN IMPOVED MECHANISM THROUGH WHICH THE COMPARTMENTED MEMBER MAY BE INDEXED ONE SLIDE COMPARTMENT AT A TIME IN FORWARD AND REVERSE DIRECTIONS DURING PROJECTION OPERATION, AN IMPROVED SLIDE GUIDING MECHANISM FOR GUIDING SLIDES INTO AND OUT OF THE SLIDE COMPARTMENTS, AND AN IMPROVED DETENT MECHANISM FOR PRECISELY LOCATING THE SLIDE TRAY MEMBERS WITH EACH SLIDE COMPARTMENT IN REGISTRY WITH THE SLIDE EXIT SLOT AND SLIDE PROJECTION GATE.
Inventors
- 👤 Herbert T Robinson
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |