US3277700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recording torsion pendulum
Assignee: Standard Oil Co
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Filing: 1963-02-28
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Granted: 1966-10-11
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Expires: 1983-02-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Ralph W Myerholtz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:36
CPC Classifications
G; G01; G01N; G01N3/00; G01N3/32; G01N2203/00; G01N2203/0014; G01N2203/0021; G01N2203/02; G01N2203/022; G01N2203/0222
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
MATERIALS TESTING APPARATUS WHICH COMPRISES: A SUPPORTED AND FREELY ROTATABLE MOUNT-OF-INERTIA DISC; A ROTAABLE SHAFT MEMBER RIGIDLY ATTACHED TO SAID DISC TO ROTATE THEREWITH, THE PLANE OF SAID DISC AND THE PLANE OF ROTATION OF SAID DISC BEING SUBSTANTIALLY PERPENDICULAR TO THE LONGITUDINAL AXIS OF SAID SHAFT MEMBER; TWO SPECIMEN CLAMP MEMBERS, SAID CLAMP MEMBERS BEING SPACED APART AND BEING ADAPTED TO RECEIVE A TEST SPECIMEN, THE FIRST OF SAID CLAMP MEMBERS BEING RIGIDLY CONNECTED TO SAID ROTATABLE SHAFT MEMBER TO ROTATE THEREWITH, THE SECOND SAID CLAMP MEMBERS BEING NON-ROTATABLE IN A PLANE PARALLEL TO THE PLANE OF ROTATION OF SAID DISC AND BEING MOVABLE FOR SHORT DISTANCES ALONG THE EXTENSION OF THE ROTATIONAL AXIS OF SAID DISC; AN ANGULAR POSITION TRANSDUCER CONNECTED TO SAID ROTATABLE SHAFT MEMBER TO CONVERT THE ROTARY MOTION OF SAID SHAFT POLARITY PROPORTIONAL TO THE DEGREE AND DIRECTION TUDE AND POLARITY PROPORTIONAL TO THE DEGREE AND DIRECTION OF ROTATION OF SAID SHAFT MEMBER; AND INDICATOR MEANS CONNECTED TO SAID TRANSDUCER TO RECEIVE SAID SIGNAL AND TO INDICATE THE DEGREE AND DIRECTION OF ROTATION OF SAID SHAFT MEMBER.
Claim 2
Dependent Claim
182 words
MATERIALS TESTING APPARATUS WHICH COMPRISES: A SUPPORTED AND FREELY ROTATABLE MOUNT-OF-INERTIA DISC; A ROTAABLE SHAFT MEMBER RIGIDLY ATTACHED TO SAID DISC TO ROTATE THEREWITH, THE PLANE OF SAID DISC AND THE PLANE OF ROTATION OF SAID DISC BEING SUBSTANTIALLY PERPENDICULAR TO THE LONGITUDINAL AXIS OF SAID SHAFT MEMBER; TWO SPECIMEN CLAMP MEMBERS, SAID CLAMP MEMBERS BEING SPACED APART AND BEING ADAPTED TO RECEIVE A TEST SPECIMEN, THE FIRST OF SAID CLAMP MEMBERS BEING RIGIDLY CONNECTED TO SAID ROTATABLE SHAFT MEMBER TO ROTATE THEREWITH, THE SECOND SAID CLAMP MEMBERS BEING NON-ROTATABLE IN A PLANE PARALLEL TO THE PLANE OF ROTATION OF SAID DISC AND BEING MOVABLE FOR SHORT DISTANCES ALONG THE EXTENSION OF THE ROTATIONAL AXIS OF SAID DISC; AN ANGULAR POSITION TRANSDUCER CONNECTED TO SAID ROTATABLE SHAFT MEMBER TO CONVERT THE ROTARY MOTION OF SAID SHAFT POLARITY PROPORTIONAL TO THE DEGREE AND DIRECTION TUDE AND POLARITY PROPORTIONAL TO THE DEGREE AND DIRECTION OF ROTATION OF SAID SHAFT MEMBER; AND INDICATOR MEANS CONNECTED TO SAID TRANSDUCER TO RECEIVE SAID SIGNAL AND TO INDICATE THE DEGREE AND DIRECTION OF ROTATION OF SAID SHAFT MEMBER.
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) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |