Patent US3657964A successfully refreshed from Google Patents.
US3657964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for nutsetter
Assignee: Gardner Denver Inc
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Filing: 1969-07-14
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Granted: 1972-04-25
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Expires: 1989-07-14
Abstract
Abstract A control system for a pneumatic multiple nutsetter which includes control valves operable to sense motive air pressure at each tool motor inlet port. In response to a predetermined motor inlet pressure the control valves operate to turn on visual indicators and to actuate pneumatic card perforating recording apparatus for registering the completion of a fastener torquing operation. The control system includes pneumatic circuitry operable to shut off the motive air supply to deenergize the nutsetter after all individual motor units have completed their fastener torquing operations. The system also includes circuitry operable to fail to deenergize the nutsetter of a motor does not reach the predetermined inlet pressure and to deenergize the nutsetter if any one motor reaches the predetermined inlet pressure prematurely.
Inventors
- 👤 William Workman Jr
- 👤 James H Boeger
- 👤 Robert E Bishop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:26
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/14; B25B23/145; B23; B23P; B23P19/00; B23P19/04; B23P19/06; B23P19/065; B23P19/069; B25B21/00; F; F01; F01B; F01B25/00; F01B25/26
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
175 words
In a control system for a torque producing tool comprising a fluid operated motor, said motor having a fluid inlet passage; a supply of pressure fluid operable to be in communication with said motor inlet passage; fluid actuated visual indicator means responsive to receiving a pressure fluid signal to indicate a predetermined torque produced by said tool; and, torque responsive control means comprising a two-position valve operable to communicate pressure fluid from said pressure fluid supply to said visual indicator means, said valve including pressure fluid biasing means operable to receive a pressure fluid signal for biasing said valve in a first position, and said valve including pressure fluid actuator means in communication with said motor inlet passage and operable in response to receiving a predetermined pressure signal from said motor inlet passage corresponding to a predetermined torque produced by said tool and greater than said biasing pressure signal to shift said valve to a second position in opposition to said biasing pressure signal to provide a pressure fluid signal to said visual indicator means.
Claim 2
Dependent Claim
175 words
In a control system for a torque producing tool comprising a fluid operated motor, said motor having a fluid inlet passage; a supply of pressure fluid operable to be in communication with said motor inlet passage; fluid actuated visual indicator means responsive to receiving a pressure fluid signal to indicate a predetermined torque produced by said tool; and, torque responsive control means comprising a two-position valve operable to communicate pressure fluid from said pressure fluid supply to said visual indicator means, said valve including pressure fluid biasing means operable to receive a pressure fluid signal for biasing said valve in a first position, and said valve including pressure fluid actuator means in communication with said motor inlet passage and operable in response to receiving a predetermined pressure signal from said motor inlet passage corresponding to a predetermined torque produced by said tool and greater than said biasing pressure signal to shift said valve to a second position in opposition to said biasing pressure signal to provide a pressure fluid signal to said visual indicator means.
Claim 3
Dependent Claim
172 words
In a control system for a torque producing tool comprising a fluid operated motor, said motor having a fluid inlet passage; a supply of pressure fluid operable to be in communication with said motor inlet passage; fluid operated recording means responsive to receiving a pressure fluid signal to record a predetermined torque produced by said tool; and, torque responsive control means comprising a two-position valve operable to communicate pressure fluid from said pressure fluid supply to said recording means, said valve including pressure fluid biasing means operable to receive a pressure fluid signal for biasing said valve in a first position, and said valve including pressure fluid actuator means in communication with said motor inlet passage and operable in response to receiving a predetermined pressure signal from said motor inlet passage corresponding to a predetermined torque produced by said tool and greater than said biasing pressure signal to shift said valve to a second position in opposition to said biasing pressure signal to provide a pressure fluid signal to said recording means.
Claim 4
Dependent Claim
172 words
In a control system for a torque producing tool comprising a fluid operated motor, said motor having a fluid inlet passage; a supply of pressure fluid operable to be in communication with said motor inlet passage; fluid operated recording means responsive to receiving a pressure fluid signal to record a predetermined torque produced by said tool; and, torque responsive control means comprising a two-position valve operable to communicate pressure fluid from said pressure fluid supply to said recording means, said valve including pressure fluid biasing means operable to receive a pressure fluid signal for biasing said valve in a first position, and said valve including pressure fluid actuator means in communication with said motor inlet passage and operable in response to receiving a predetermined pressure signal from said motor inlet passage corresponding to a predetermined torque produced by said tool and greater than said biasing pressure signal to shift said valve to a second position in opposition to said biasing pressure signal to provide a pressure fluid signal to said recording means.
Claim 5
Dependent Claim
165 words
In a control system for a torque producing tool comprising a fluid operated motor, said motor having a fluid inlet passage; a supply of pressure fluid operable to be in communication with said motor inlet passage; fluid actuated register means responsive to receiving a pressure fluid signal to register a predetermined torque produced by said tool; and, torque responsive control means comprising a two-position valve operable to communicate pressure fluid from said pressure fluid supply to said register means, said valve including pressure fluid biasing means operable to receive a pressure fluid signal for biasing said valve in a first position, and said valve including pressure fluid actuator means in communication with said motor inlet passage and operable in response to receiving a predetermined pressure signal from said motor inlet passage corresponding to a predetermined torque produced by said tool to shift said valve to a second position in opposition to said biasing pressure signal to provide a pressure fluid signal to said register means.
Claim 6
Dependent Claim
165 words
In a control system for a torque producing tool comprising a fluid operated motor, said motor having a fluid inlet passage; a supply of pressure fluid operable to be in communication with said motor inlet passage; fluid actuated register means responsive to receiving a pressure fluid signal to register a predetermined torque produced by said tool; and, torque responsive control means comprising a two-position valve operable to communicate pressure fluid from said pressure fluid supply to said register means, said valve including pressure fluid biasing means operable to receive a pressure fluid signal for biasing said valve in a first position, and said valve including pressure fluid actuator means in communication with said motor inlet passage and operable in response to receiving a predetermined pressure signal from said motor inlet passage corresponding to a predetermined torque produced by said tool to shift said valve to a second position in opposition to said biasing pressure signal to provide a pressure fluid signal to said register means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |