US3674063A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for making shoe lasts
Assignee: Individual
•
Filing: 1969-08-13
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Granted: 1972-07-04
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Expires: 1989-08-13
Abstract
Abstract Apparatus for making shoe lasts. Electrical control signals which are proportional to the surface configuration of a shoe last model are derived and stored. Shoe last shaping machinery comprising a blank of suitable material and suitable cutting surfaces are moved relative to each other responsive to the stored electrical control signals.
Inventors
- 👤 William G Klingbeil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:28
CPC Classifications
B; B27; B27M; B27M3/00; B27M3/20; Y; Y10; Y10T; Y10T82/00; Y10T82/14; Y10T82/141; Y10T82/143; Y10T82/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
193 words
An apparatus for shaping a shoe last from a blank comprising; a source of electrical control signals; a blank capable of being shaped to form a shoe last; means to shape said blank; means responsive to said control signals to cause said means to shape said blank to move relative to said blank to form said shoe last; Said responsive means comprises; transducer means; said transducer means being caused to move responsive to said electrical control signals and; means to transmit the motion of said transducer means to said blank; said means to transmit the motion of said transducer means comprises; a bar coupled to said blank; a threaded device, said threaded device comprises a threaded rod; a probe coupled to said threaded device for movement with said threaded rod; control means for moving said probe radially with respect to said threaded rod, said probe engaging said bar, such that said bar is moved thereby, thereby moving said blank; grinding and cutting means rigidly held with respect to said blank, such that said blank is moved with respect thereto; transmission means to move said blank in accordance with the motion of said bar.
Claim 2
Independent Claim
193 words
An apparatus for shaping a shoe last from a blank comprising; a source of electrical control signals; a blank capable of being shaped to form a shoe last; means to shape said blank; means responsive to said control signals to cause said means to shape said blank to move relative to said blank to form said shoe last; Said responsive means comprises; transducer means; said transducer means being caused to move responsive to said electrical control signals and; means to transmit the motion of said transducer means to said blank; said means to transmit the motion of said transducer means comprises; a bar coupled to said blank; a threaded device, said threaded device comprises a threaded rod; a probe coupled to said threaded device for movement with said threaded rod; control means for moving said probe radially with respect to said threaded rod, said probe engaging said bar, such that said bar is moved thereby, thereby moving said blank; grinding and cutting means rigidly held with respect to said blank, such that said blank is moved with respect thereto; transmission means to move said blank in accordance with the motion of said bar.
References Cited (Backward Citations)
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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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |