Pipe camera for photographing the interior of a pipe or the like
Abstract
Abstract A PIPE CAMERA FOR PHOTOGRAPHING THE INTERIOR OF A PIPE OR THE LIKE AT REGULAR INTERVALS COMPRISING A WATERTIGHT HOUSING, A TRANSPORT DEVICE FOR MOVING THE CAMERA THROUGH THE PIPE, AND A CAMERA DRIVE MECHAMISM FOR OPERATING THE CAMERA INDEPENDENTLY OF THE TRANSPORT DEVICE BUT IN RESPONSE TO MOVEMENT OF THE CAMERA THROUGH THE PIPE. THE TRANSPORT DEVICE CONSISTS OF A TOW LINE AND SKID MEMBERS WHICH ARE DETACHABLY SECURED TO THE CAMERA HOUSING. THE CAMERA DRIVE MECHANISM INCLUDES A PULLEY, A TRAIN OF DRIVE ELEMENTS FOR INTERCONNECTING THE PULLEY WITH THE FILM ADVANCE, THE SHUTTER AND THE FLASH ELEMENT OF THE CAMERA, AND A CLUTCH ARRANGEMENT FOR PROVIDING A SINGLE DIRECTION OF OPERATION OF THE DRIVE ELEMENTS IRRESPECTIVE OF THE DIRECTION OF ROTATION OF THE PULLEY. THE OPERATION OF THE FLASH ELEMENT IS SYNCHRONIZED WITH THE OPENING OF THE SHUTTER. A COUNTER MAY ALSO BE CONNECTED TO THE TRAIN OF DRIVE ELEMENTS FOR INDICATING THE DEGREE OF CAMERA MOVEMENT THROUGH THE PIPE.
Inventors
- 👤 William G Hyzer
- 👤 Ernest M Whitley
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) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |