US3665652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding system
Assignee: Gordon Engineering Co
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Filing: 1970-10-21
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Granted: 1972-05-30
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Expires: 1990-10-21
Abstract
Abstract A grinder having a workpiece mounted thereon is operatively connected to a tracking analog to digital converter via a sensor unit. The analog to digital converter comprises a summing amplifier, a forward/backward counter, a gating control, and a digital to analog converter and defines a closed loop configuration. Signals at the output of the summing amplifier are applied to a peak detector which generates a signal representing the degree of out of round of the workpiece. Counting pulses generated by the counter are applied to a reset-delay via the gating control for generation of a signal indicating the rate of removal of material from the workpiece. Pulses representing the state of the counter are applied to a limit circuit which generates signals representing the amount of material removed from the workpiece.
Inventors
- 👤 Bernard M Gordon
- 👤 Leopold Neumann
- 👤 Ivan H Kirsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:41
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/416; G05B19/4166; B; B24; B24B; B24B49/00; B24B49/10; G05B2219/00; G05B2219/30; G05B2219/37; G05B2219/37345; G05B2219/37536; G05B2219/45; G05B2219/45161
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
67 words
A system for grinding a workpiece comprising: a. grinding means; b. sensor means operatively connected to said grinding means for generating a signal representing the dimensional characteristics of the workpiece; and c. tracking analog to digital converter means electrically communicating with said sensor means for providing output signals representing the rate of removal of material from the workpiece and the amount of material removed from the workpiece.
Claim 2
Independent Claim
67 words
A system for grinding a workpiece comprising: a. grinding means; b. sensor means operatively connected to said grinding means for generating a signal representing the dimensional characteristics of the workpiece; and c. tracking analog to digital converter means electrically communicating with said sensor means for providing output signals representing the rate of removal of material from the workpiece and the amount of material removed from the workpiece.
Claim 3
Dependent Claim
99 words
The system as claimed in claim 1 wherein said tracking analog to digital converter includes: a. gating control means; b. forward/backward counter means electrically connected to said gating control means; c. digital to analog converter means electrically connected to said forward/backward counter means; and d. means for providing an output signal, said means having at least two input means and an output means, one of said input means electrically communicating with said digital to analog converter means, the other of said input means operatively connected to said sensor means, said output means operatively connected to said gating control means.
Claim 4
Dependent Claim
30 words
The system as claimed in claim 2 including source means for providing a reference signal, said source means connected to said sensor means and said digital to analog converter means.
Claim 5
Dependent Claim
23 words
The system as claimed in claim 3 including strobe pulse generator means electrically connected to said source means and said gating control means.
Claim 6
Dependent Claim
103 words
The system as claimed in claim 2 including: a. sign means electrically connected to said gating control means for generating a control signal; and b. polarity control means electrically connected to said sign means, sensor means, and gating control means, the signal as at the output of said sensor means applied to said polarity control means, the signal as at the output of said polarity control means fed to said gating control means, the control signal generated by said sign means applied to said polarity control means for governing the polarity of the signal fed to said means for providing an output signal.
Claim 7
Dependent Claim
20 words
The system as claimed in claim 5 including multiplexer means interposed between said sensor means and said polarity control means.
Claim 8
Dependent Claim
38 words
The system as claimed in claim 2 including peak detector means electrically connected to said means for providing an output signal, said peak detector means generating a signal representing the degree of out of round of the workpiece.
Claim 9
Dependent Claim
42 words
The system as claimed in claim 2 including limit means electrically communicating with said forward/backward counter means for providing an indication of the amount of material removed from the workpiece, said limit means responsive to signal generated by said forward/backward counter means.
Claim 10
Dependent Claim
31 words
The system as claimed in claim 2 including reset-delay means electrically communicating with said gating control means for providing an output signal representing the rate of material removed from the workpiece.
Claim 11
Dependent Claim
20 words
The system as claimed in claim 1 wherein said sensor means includes at least one linear variable differential transformer means.
Claim 12
Independent Claim
103 words
A system for grinding a workpiece comprising: a. grinding means; b. sensor means operatively connected to said grinding means; c. gating control means; d. forward/backward counter means electrically connected to said gating control means; e. digital to analog converter means electrically connected to said forward/backward counter means; and f. means for providing an output signal, said means having at least two input means and an output means, one of said input means eletrically communicating with said digital to analog converter means, the other of said input means operatively connected to said sensor means, said output means operatively connected to said gating control means.
Claim 13
Independent Claim
103 words
A system for grinding a workpiece comprising: a. grinding means; b. sensor means operatively connected to said grinding means; c. gating control means; d. forward/backward counter means electrically connected to said gating control means; e. digital to analog converter means electrically connected to said forward/backward counter means; and f. means for providing an output signal, said means having at least two input means and an output means, one of said input means eletrically communicating with said digital to analog converter means, the other of said input means operatively connected to said sensor means, said output means operatively connected to said gating control means.
Claim 14
Dependent Claim
116 words
The system as claimed in claim 11 including: a. multiplexer means electrically communicating with said sensor means; b. sign means electrically connected to said gating control means for generating a control signal; and c. polarity control means electrically connected to said sign means, multiplexer means, and gating control means, the signal as at the output of said sensor means applied to said polarity control means via said multiplexer means, the signal as at the output of said polarity control means fed to said gating control means, the control signal generated by said sign means applied to said polarity control means for specifying the polarity of the signal fed to said means for providing an output signal.
Claim 15
Dependent Claim
99 words
The system as claimed in claim 12 including: a. peak detector means electrically connected to said means for providing an output signal, said peak detector means generating a signal representing the degree of out of round of the workpiece; b. limit means electrically communicating with said forward/backward counter means for providing an indication of the amount of material removed from the workpiece, said limit means responsive to signal generated by said forward/backward counter means; and c. reset-delay means electrically communicating with said gating control means for providing an output signal representing the rate of material removed from the workpiece.
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) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |