Manually operated wiping apparatus for taking wiped specimens from test surfaces
Abstract
Abstract A MANUALLY OPERATED APPARATUS FOR TAKING SPECIMENS FROM A TEST SURFACE WITH WIPING PAPER AND HAVING A HANDLE AND A SUPPORTING BASE ATTACHED THERETO FOR POSITIONING THE APPARATUS WITH THE WIPING PAPER SURFACE ON THE TEST SURFACE. A REEL WIND-ON MECHANISM SUPPORTS THE WIPING PAPER WHICH IS CAPABLE OF BEING PAID OFF IN A PLANE PARALLEL TO THE TEST SURFACE. A MANUALLY OPERATED DRIVE SHAFT IS ROTATABLY JOURNALLED IN THE SUPPORTING BASE AND THE REEL WIND-ON MECHANISM IS MOUNTED ECCENTRICALLY ON THE END OF THE SHAFT WHICH IS NEAREST TO THE TEST SURFACE, THUS PERMITTING PAPER SURFACE TO MOVE ON A CIRCULAR TRACK AROUND THE HANDLE AXIS. A MANUALLY OPERATED MEANS IS PROVIDED FOR INDEXING THE REEL WIND-ON MECHANISM.
Inventors
- 👤 Helmut W M Braun
Bibliographic Details
Claims Analysis
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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 |