Angle gauge
Abstract
Abstract AN ANGLE GUAGE FOR ESTABLISHING AN ANGLE BETWEEN TWO SURFACES WITH GREAT ACCURACY WHEREIN TWO ARMS ARE PIVOTALLY CONNECTED FOR ROTATION ABOUT AN AXIS THAT IS PARALLEL TO FLAT BASE SURFACES EXTENDING ALONG ONE SIDE OF EACH ARM. A REFERENCE PIN OF KNOWN RADIUS PROTRUDES FROM EACH ARM PARALLEL TO THE PIVOTAL AXIS OF THE ARMS WITH THE CENTER LINE OF EACH REFERENCE PIN BEING LOCATED IN ACCURATELY KNOWN DISTANCE FROM A RADIAL EXTENDING PERPENDICULARLY FROM THE PIVOTAL AXIS ALONG FACING INNER SURFACES OF THE ARMS SO THAT ESTABLISHING THE OUTER SURFACES OF THE TWO PINS INTO CONTACT WITH THE RESPECTIVE JAWS OF MICROMETER CALIPERS SET OF A SEPARATION CALCULATED AT TWICE THE DISTANCE FROM THE CENTER LINE OF THE PINS TO THE PIVOTAL AXIS OF THE ARMS MULTIPLIED BY THE SINE OF ONE-HALF THE ANGLE TO BE ESTABLISHED PLUS THE RADIUS OF EACH OF THE PINS WILL ALIGN THE BASE SURFACES OF THE TWO ARMS TO DEFINE THE DESIRED ANGLE BETWEEN THEM.
Inventors
- 👤 Pliny G Holt
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) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |