US3911387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load measuring apparatus
Assignee: R F L IND Inc
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Filing: 1974-09-23
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Granted: 1975-10-07
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Expires: 1994-09-23
Abstract
Abstract Apparatus providing a direct measurement of the pull applied to the anchor line of a boat, which apparatus comprises a tension to electrical transducer built into the form of a cleat and an electrical instrument responsive to the output of the transducer, said instrument having a scale calibrated in pounds anchor pull.
Inventors
- 👤 Jr Richard W Seabury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:09
CPC Classifications
G; G01; G01L; G01L5/00; G01L5/04; G01L5/10; G01L5/103; H; H01; H01C; H01C10/00; H01C10/28
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
67 words
A variable resistor comprising, a. contact bar, b. a wire winding having turns including portions which are substantially equally spaced from the contact bar, c. a rod mounted for displacement relative to said winding, and d. a metal ball making a bridging electrical contact between the contact bar and the said portions of the wire turns, said ball being rotatable about and slidable along the said rod.
Claim 2
Dependent Claim
67 words
A variable resistor comprising, a. contact bar, b. a wire winding having turns including portions which are substantially equally spaced from the contact bar, c. a rod mounted for displacement relative to said winding, and d. a metal ball making a bridging electrical contact between the contact bar and the said portions of the wire turns, said ball being rotatable about and slidable along the said rod.
Claim 3
Dependent Claim
40 words
The invention as recited in claim 1, wherein the said rod is mounted for angular rotation about a fixed axis, and wherein the said contact bar lies on the chord of a circle whose center coincides with the said axis.
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) | 1978-10-06 | 1979-04-07 | 1979-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-06 | 1983-04-07 | 1983-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-06 | 1987-04-07 | 1987-10-07 | $7700.00 | Window Closed / Lapsed |