US4326128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Incremental rotary transmitter
Assignee: Robert Bosch GmbH
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Filing: 1980-05-02
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Granted: 1982-04-20
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Expires: 2000-05-02
Abstract
Abstract An incremental rotary transmitter is proposed for mounting upon the free end of a shaft. The transmitter comprises a pulse disc rigidly secured to the shaft and a relatively stationary scanning disc freely mounted on the same shaft. The scanning disc is thus subject to the same flexing oscillations or errors in true running of the shaft as the pulse disc, so that measurement errors due to eccentric movements of the pulse disc are substantially reduced.
Inventors
- 👤 Ottokar Klein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:59
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/26; G01D5/32; G01D5/34; G01D5/347; G01D5/3473; G01D5/34738; H; H03; H03M; H03M1/00; H03M1/12; H03M1/22; H03M1/24; H03M1/28; H03M1/30
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
73 words
An incremental rotary transmitter comprising a pulse disc secured to a shaft for rotation therewith about the axis of the shaft and in a plane perpendicular to the axis, and a relatively stationary scanning grid arranged closely adjacent and parallel to the pulse disc, wherein the scanning grid is secured to a stationary sleeve which is internally freely mounted upon the shaft carrying the pulse disc and externally mounted in oscillation damping elements.
Claim 2
Dependent Claim
73 words
An incremental rotary transmitter comprising a pulse disc secured to a shaft for rotation therewith about the axis of the shaft and in a plane perpendicular to the axis, and a relatively stationary scanning grid arranged closely adjacent and parallel to the pulse disc, wherein the scanning grid is secured to a stationary sleeve which is internally freely mounted upon the shaft carrying the pulse disc and externally mounted in oscillation damping elements.
Claim 3
Dependent Claim
25 words
An incremental rotary transmitter as claimed in claim 1, further including spacing elements for maintaining the spacing between the pulse disc and the scanning grid.
References Cited (Backward Citations)
US3995156A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-04-19 | 1985-10-19 | 1986-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-04-19 | 1989-10-19 | 1990-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-04-19 | 1993-10-19 | 1994-04-20 | $7700.00 | Window Closed / Lapsed |