US3297879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical encoder responsive to movement in two directions
Assignee: W AND L E GURLEY
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Filing: 1963-03-18
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Granted: 1967-01-10
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Expires: 1983-03-18
Abstract
No abstract record available.
Inventors
- 👤 Robert V Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:43
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/03; G06F3/0304; G06F3/0317; G01; G01D; G01D5/00; G01D5/26; G01D5/32; G01D5/34; G01D5/347
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
362 words
IN COMBINATION (A) A PAIR OF MEMBERS MOVABLE RELATIVELY TO EACH OTHER IN PARALLEL PLANES; (B) A PULSE-GENERATING GRID PARALLEL WITH SAID PLANES AND CARRIED BY ONE OF SAID MEMBERS, THE GRID COMPRISING FIRST AND SECOND CROSSED SETS OF SPACED PARALLEL BANDS HAVING ONE LIGHT-AFFECTING CHARACTERISTIC AND DEFINING TWO CROSSED SETS OF PARALLEL COLUMNS OF SPACED AREAS HAVING A DIFFERENT LIGHT-AFFECTING CHARACTERISTIC, THE BANDS IN EACH SET AND THE SPACES BETWEEN THEM BEING OF EQUAL WIDTH; (C) FIRST AND SECOND PHOTOCELLS CARRIED BY THE OTHER MEMBER AND EACH HAVING AN ACTIVE FACE; (D) A LIGHT SOURCE CARRIED BY THE OTHER MEMBER FOR ILLUMINATING A PORTION OF THE GRID, THE PORTION SO ILLUMINATED DEPENDING UPON THE RELATIVE POSITIONS OF THE TWO MEMBERS; (E) FIRST MEANS CARRIED BY THE OTHER MEMBER FOR FORMING ON THE ACTIVE FACE OF THE FIRST PHOTOCELL AN IMAGE OF A FIRST SECTION OF THE ILLUMINATED PORTION OF THE GRID, THE MARGINS OF THE FIRST SECTION BEING PARALLEL WITH THE BANDS IN THE FIRST AND SECOND SETS, RESPECTIVELY, AND THE SECTION HAVING A DIMENSION PARALLEL WITH THE BANDS IN THE FIRST SET EQUAL TO AN EVEN MULTIPLE OF THE WIDTH OF THE BANDS IN THE SECOND SET AND A DIMENSION PARALLEL WITH THE BANDS IN THE SECOND SET EQUAL TO AN ODD MULTIPLE OF THE WIDTH OF THE BANDS IN THE FIRST SET; (F) SECOND MEANS CARRIED BY THE OTHER MEMBER FOR FORMING ON THE ACTIVE FACE OF THE SECOND PHOTOCELL AN IMAGE OF A SECOND SECTION OF THE ILLUMINATED PORTION OF THE GRID HAVING MARGINS PARALLEL WITH THE BANDS IN THE FIRST AND SECOND SETS, RESPECTIVELY, THE SECOND SECTION HAVING A DIMENSION PARALLEL WITH THE BANDS IN THE FIRST SET EQUAL TO AN ODD MULTIPLE OF THE WIDTH OF THE BANDS IN THE SECOND SET AND A DIMENSION PARALLEL WITH THE BANDS IN THE SECOND SET EQUAL TO AN EVEN MULTIPLE OF THE WIDTH OF THE BANDS IN THE FIRST SET, (G) THE LIGHT-AFFECTING CHARACTERISTICS BEING SO CHOSEN THAT RELATIVE MOVEMENT OF THE TWO MEMBERS IN DIRECTIONS PARALLEL WITH THE FIRST AND SECOND SETS OF BANDS PRODUCES CYCLIC VARIATIONS IN THE OUTPUTS OF THE SECOND AND FIRST PHOTOCELLS, RESPECTIVELY.
Claim 2
Dependent Claim
362 words
IN COMBINATION (A) A PAIR OF MEMBERS MOVABLE RELATIVELY TO EACH OTHER IN PARALLEL PLANES; (B) A PULSE-GENERATING GRID PARALLEL WITH SAID PLANES AND CARRIED BY ONE OF SAID MEMBERS, THE GRID COMPRISING FIRST AND SECOND CROSSED SETS OF SPACED PARALLEL BANDS HAVING ONE LIGHT-AFFECTING CHARACTERISTIC AND DEFINING TWO CROSSED SETS OF PARALLEL COLUMNS OF SPACED AREAS HAVING A DIFFERENT LIGHT-AFFECTING CHARACTERISTIC, THE BANDS IN EACH SET AND THE SPACES BETWEEN THEM BEING OF EQUAL WIDTH; (C) FIRST AND SECOND PHOTOCELLS CARRIED BY THE OTHER MEMBER AND EACH HAVING AN ACTIVE FACE; (D) A LIGHT SOURCE CARRIED BY THE OTHER MEMBER FOR ILLUMINATING A PORTION OF THE GRID, THE PORTION SO ILLUMINATED DEPENDING UPON THE RELATIVE POSITIONS OF THE TWO MEMBERS; (E) FIRST MEANS CARRIED BY THE OTHER MEMBER FOR FORMING ON THE ACTIVE FACE OF THE FIRST PHOTOCELL AN IMAGE OF A FIRST SECTION OF THE ILLUMINATED PORTION OF THE GRID, THE MARGINS OF THE FIRST SECTION BEING PARALLEL WITH THE BANDS IN THE FIRST AND SECOND SETS, RESPECTIVELY, AND THE SECTION HAVING A DIMENSION PARALLEL WITH THE BANDS IN THE FIRST SET EQUAL TO AN EVEN MULTIPLE OF THE WIDTH OF THE BANDS IN THE SECOND SET AND A DIMENSION PARALLEL WITH THE BANDS IN THE SECOND SET EQUAL TO AN ODD MULTIPLE OF THE WIDTH OF THE BANDS IN THE FIRST SET; (F) SECOND MEANS CARRIED BY THE OTHER MEMBER FOR FORMING ON THE ACTIVE FACE OF THE SECOND PHOTOCELL AN IMAGE OF A SECOND SECTION OF THE ILLUMINATED PORTION OF THE GRID HAVING MARGINS PARALLEL WITH THE BANDS IN THE FIRST AND SECOND SETS, RESPECTIVELY, THE SECOND SECTION HAVING A DIMENSION PARALLEL WITH THE BANDS IN THE FIRST SET EQUAL TO AN ODD MULTIPLE OF THE WIDTH OF THE BANDS IN THE SECOND SET AND A DIMENSION PARALLEL WITH THE BANDS IN THE SECOND SET EQUAL TO AN EVEN MULTIPLE OF THE WIDTH OF THE BANDS IN THE FIRST SET, (G) THE LIGHT-AFFECTING CHARACTERISTICS BEING SO CHOSEN THAT RELATIVE MOVEMENT OF THE TWO MEMBERS IN DIRECTIONS PARALLEL WITH THE FIRST AND SECOND SETS OF BANDS PRODUCES CYCLIC VARIATIONS IN THE OUTPUTS OF THE SECOND AND FIRST PHOTOCELLS, RESPECTIVELY.
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) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |