Patent US4370834A successfully refreshed from Google Patents.
US4370834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machines for grinding toothed cutting tools
Assignee: Individual
•
Filing: 1980-11-12
•
Granted: 1983-02-01
•
Expires: 2000-11-12
Abstract
Abstract A machine for grinding toothed cutting tools comprises an emitter capable of emitting a light or an ultrasound ray and an optoelectronic or an ultrasound receiver respectively. The receiver is associated with a circuit for controlling the movement of a table of the machine on which a tool to be ground is supported. The positioning of the table is effected by the interception of the light or sound ray by the teeth of the tool, which causes the receiver to act to stop movement of the table.
Inventors
- 👤 Robert Habib
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:42
CPC Classifications
B; B24; B24B; B24B49/00; B24B49/12; B23; B23D; B23D63/00; B23D63/005; B23D63/08; B23D63/12; B23Q; B23Q17/00; B23Q17/24; B24B3/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
140 words
A machine for grinding toothed cutting tools comprising: a sliding table for supporting a tool to be ground, a grinding wheel support head which is movable transversely with respect to the table and which is tiltable, a grinding wheel supported by said support head, and means for locating and positioning the table relative to the grinding wheel, said positioning means comprising an emitter capable of emitting a ray of energy and a receiver for receiving the ray of energy and for developing an output signal for controlling the movement of the table, and the emitter and receiver being mounted so that the emitted ray can be intercepted by a tooth of the cutting tool to be ground to change the receiver output signal to indicate the position of the tool to be ground to enable control of the table position.
Claim 2
Dependent Claim
140 words
A machine for grinding toothed cutting tools comprising: a sliding table for supporting a tool to be ground, a grinding wheel support head which is movable transversely with respect to the table and which is tiltable, a grinding wheel supported by said support head, and means for locating and positioning the table relative to the grinding wheel, said positioning means comprising an emitter capable of emitting a ray of energy and a receiver for receiving the ray of energy and for developing an output signal for controlling the movement of the table, and the emitter and receiver being mounted so that the emitted ray can be intercepted by a tooth of the cutting tool to be ground to change the receiver output signal to indicate the position of the tool to be ground to enable control of the table position.
Claim 3
Dependent Claim
25 words
A machine as claimed in claim 1, in which the emitter is capable of emitting a light ray and the receiver in an optoelectronic receiver.
Claim 4
Dependent Claim
22 words
A machine as claimed in claim 1, in which the emitter is an ultrasound emitter and the receiver is an ultrasound receiver.
Claim 5
Dependent Claim
22 words
A machine as claimed in claim 1 in which the emitter and the receiver are attached to a frame of the machine.
Claim 6
Dependent Claim
30 words
A machine as claimed in claim 1, in which the emitter and the receiver are mounted on slides and their position can be adjusted by means of a micrometer screw.
Claim 7
Dependent Claim
22 words
A machine as claimed in claim 1, in which the emitter and the receiver are attached to the grinding wheel support head.
Claim 8
Dependent Claim
51 words
A machine as claimed in claim 6, in which the emitter and the receiver are mounted on a common support which is mounted on the grinding wheel support head through the intermediary of a slide movable by means of a micrometer screw arranged parallel to the axis of the grinding wheel.
Claim 9
Dependent Claim
32 words
A machine as claimed in claim 1, in which a tool-support headstock is provided and the receiver is also connected to an electrical circuit for controlling the angular position of the headstock.
References Cited (Backward Citations)
US2005130A
Cited
US2874517A
Cited
US2840958A
Cited
US2971372A
Cited
US3646593A
Cited
US3835591A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-01-31 | 1986-08-02 | 1987-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-31 | 1990-08-02 | 1991-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-31 | 1994-08-02 | 1995-02-01 | $7700.00 | Window Closed / Lapsed |