US3900732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Encoder disc mount and aligning tool
Assignee: MOTION SYSTEMS COMPANY Inc
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Filing: 1974-04-15
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Granted: 1975-08-19
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Expires: 1994-04-15
Abstract
Abstract An encoder assembly is described having a replaceable detecting assembly with a construction allowing alignment of the detecting assembly with an encoder shaft and wheel affording an encoder assembly having resolution of at least 500 cycles per revolution.
Inventors
- 👤 John E Costales
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:29
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/22; H03M1/24; H03M1/28; H03M1/30; G; G01; G01D; G01D5/00; G01D5/12; G01D5/244; G01D5/24428; G01D5/24433; G01D5/24442; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53909; Y10T29/53913
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
110 words
An encoder assembly in combination with an alignment tool for aligning an encoder detecting assembly with a rotatable encoder plate having a rotating shaft, comprising: a. a removable tool including a void adapted to fit about said shaft; b. at least two prongs depending from said tool and spaced from said void; and c. said encoder detecting assembly including at least two discrete receiving means capable of simultaneously receiving said at least two prongs when said void is fitted about said shaft, whereby said encoder detecting assembly is capable of being fixed relative to said rotatable encoder plate at a resolution of 500 cycles per revolution of said encoder plate.
Claim 2
Dependent Claim
110 words
An encoder assembly in combination with an alignment tool for aligning an encoder detecting assembly with a rotatable encoder plate having a rotating shaft, comprising: a. a removable tool including a void adapted to fit about said shaft; b. at least two prongs depending from said tool and spaced from said void; and c. said encoder detecting assembly including at least two discrete receiving means capable of simultaneously receiving said at least two prongs when said void is fitted about said shaft, whereby said encoder detecting assembly is capable of being fixed relative to said rotatable encoder plate at a resolution of 500 cycles per revolution of said encoder plate.
Claim 3
Dependent Claim
25 words
An encoder assembly as claimed in claim 1 wherein said rotating shaft is cylindrical in structure, and further wherein said void is cylindrical in structure.
Claim 4
Dependent Claim
36 words
An encoder assembly as claimed in claim 2 wherein said detecting assembly further includes a circularly shaped base having a recess depending from a circumference of said base and extending to a center of said base.
Claim 5
Dependent Claim
33 words
An encoder assembly as claimed in claim 2 wherein said detecting assembly further includes signal amplifier means mounted within, and further includes photo-receiving means positioned approximately 0.0003 inch from said rotatable encoder plate.
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) | 1978-08-18 | 1979-02-17 | 1979-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-18 | 1983-02-17 | 1983-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-18 | 1987-02-17 | 1987-08-19 | $7700.00 | Window Closed / Lapsed |