US3739649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Linear position converter
Assignee: CSI Liquidating Corp
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Filing: 1970-10-20
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Granted: 1973-06-19
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Expires: 1990-10-20
Abstract
Abstract A linear position encoder including a spool adapted for connection with a rotary transducer and having guide means about its periphery, means for mounting the spool and transducer to one of two rectilinearly, relatively movable members, first and second spaced support means mounted on the other of the two relatively movable members; and a wire tautly held between the first and second spaced support means and looped about the spool within the guide means for converting rectilinear relative motion between the spool and wire to rotary motion of the spool for driving the rotary transducer.
Inventors
- 👤 E Pacini
- 👤 A Johnson
- 👤 R Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:46
CPC Classifications
B; B23; B23Q; B23Q17/00; B23Q17/22; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18832; Y10T74/18848
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
120 words
A linear position encoder comprising: a spool adapted for connection with a rotary transducer and having wire-confining guide means about its periphery; means for mounting the spool and transducer to one of two rectilinearly, relatively movable members; first and second spaced support means mounted on the other of the two relatively movable members; a length of wire tautly held at its opposite ends by said first and second spaced support means, respectively, and looped spirally at least one full time about the periphery of said spool within said guide means for converting rectilinear relative motion between said spool and said wire to rotary motion of said spool for driving said rotary transducer; said rotary transducer including a rotary pulse generator.
Claim 2
Dependent Claim
120 words
A linear position encoder comprising: a spool adapted for connection with a rotary transducer and having wire-confining guide means about its periphery; means for mounting the spool and transducer to one of two rectilinearly, relatively movable members; first and second spaced support means mounted on the other of the two relatively movable members; a length of wire tautly held at its opposite ends by said first and second spaced support means, respectively, and looped spirally at least one full time about the periphery of said spool within said guide means for converting rectilinear relative motion between said spool and said wire to rotary motion of said spool for driving said rotary transducer; said rotary transducer including a rotary pulse generator.
Claim 3
Dependent Claim
141 words
A linear position encoder comprising: a spool adapted for connection with a rotary transducer and having wire-confining guide means about its periphery; means for mounting the spool and transducer to one of two rectilinearly, relatively movable members; first and second spaced support means mounted on the other of the two relatively movable members; a length of wire tautly held at its opposite ends by said first and second spaced support means, respectively, and looped spirally at least one full time about the periphery of said spool within said guide means for converting rectilinear relative motion between said spool and said wire to rotary motion of said spool for driving said rotary transducer and; means of flexible length for covering said wire between each of said support means and said spool during relative rectilinear movement between said support means and said spool.
Claim 4
Dependent Claim
141 words
A linear position encoder comprising: a spool adapted for connection with a rotary transducer and having wire-confining guide means about its periphery; means for mounting the spool and transducer to one of two rectilinearly, relatively movable members; first and second spaced support means mounted on the other of the two relatively movable members; a length of wire tautly held at its opposite ends by said first and second spaced support means, respectively, and looped spirally at least one full time about the periphery of said spool within said guide means for converting rectilinear relative motion between said spool and said wire to rotary motion of said spool for driving said rotary transducer and; means of flexible length for covering said wire between each of said support means and said spool during relative rectilinear movement between said support means and said spool.
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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) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |