Patent US4744348A successfully refreshed from Google Patents.
US4744348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dressing apparatus for grinding wheels
Assignee: Bosch Corp
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Filing: 1986-11-12
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Granted: 1988-05-17
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Expires: 2006-11-12
Abstract
Abstract A grinding wheel dressing apparatus including a housing, a dresser shaft rotatably mounted on the housing and having one end adapted for connection to a drive shaft and an opposite end adapted to receive a dresser wheel, and an acoustic sensor retained by the housing and adapted to detect acoustic signals produced by contact between the rotating dresser wheel and a grinding wheel being dressed thereby.
Inventors
- 👤 Hideaki Oda
- 👤 Akira Unozawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:27
CPC Classifications
B; B24; B24B; B24B49/00; B24B49/003; B24B47/00; B24B47/22; B24B53/00; B24B53/12; B24B53/14
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
102 words
A grinding wheel dressing apparatus comprising: a dresser shaft rotatably mounted and having one end adapted for connection to a drive shaft and an opposite end adapted to receive a dresser wheel; an acoustic sensor adapted to detect acoustic signals produced by contact between the rotating dresser wheel and a grinding wheel being dressed thereby; a housing means retaining said dresser shaft and said acoustic sensor and defining a fluid chamber adapted to couple said acoustic signals between said acoustic sensor and the contacting surfaces of the dresser and grinding wheels; and supply means for supplying pressurized fluid to said fluid chamber.
Claim 2
Dependent Claim
102 words
A grinding wheel dressing apparatus comprising: a dresser shaft rotatably mounted and having one end adapted for connection to a drive shaft and an opposite end adapted to receive a dresser wheel; an acoustic sensor adapted to detect acoustic signals produced by contact between the rotating dresser wheel and a grinding wheel being dressed thereby; a housing means retaining said dresser shaft and said acoustic sensor and defining a fluid chamber adapted to couple said acoustic signals between said acoustic sensor and the contacting surfaces of the dresser and grinding wheels; and supply means for supplying pressurized fluid to said fluid chamber.
Claim 3
Dependent Claim
25 words
An apparatus according to claim 1 including nozzle means communicating with said fluid chamber and arranged to discharge pressurized fluid therefrom onto the dresser wheel.
Claim 4
Dependent Claim
33 words
An apparatus according to claim 2 wherein said nozzle means is retained by said housing means in a position spaced from the dresser wheel by a distance of between 0.3 and 0.5 millimeters.
Claim 5
Dependent Claim
49 words
An apparatus according to claim 3, wherein said fluid chamber is defined by a first bore in said housing means and oriented substantially parallel to said dresser shaft, and said acoustic sensor is retained in a second bore in said housing and oriented substantially parallel to said dresser shaft.
Claim 6
Dependent Claim
23 words
An apparatus according to claim 1 wherein said fluid chamber comprises an annular chamber disposed between said housing means and said dresser shaft.
Claim 7
Dependent Claim
22 words
An apparatus according to claim 5 wherein said annular chamber is located directly adjacent to said opposite end of said dresser shaft.
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) | 1991-05-17 | 1991-11-16 | 1992-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-17 | 1995-11-16 | 1996-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-17 | 1999-11-16 | 2000-05-17 | $7700.00 | Window Closed / Lapsed |