Patent US732436A successfully refreshed from Google Patents.
US4027832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leader-pin
Assignee: IMNET ACQUISITION Co
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Filing: 1976-04-23
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Granted: 1977-06-07
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Expires: 1996-04-23
Abstract
Abstract A leader-pin to securely hold the leader of a film strip or magnetic tape for high speed unwinding and rewinding wherein the end of the film strip or magnetic tape is inserted between a split rod and the split rod is then inserted into an elongated, resilient tube, with the end of the strip protruding from an elongated slit in the tube; the tube frictionally engaging the strip and the rod, so that the strip will not slip out of the leader-pin.
Inventors
- 👤 Ira Lopata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:58
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/113; G03; G03B; G03B21/00; G03B21/14; G03B21/32; G03B21/321; G03B21/323
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A combination leader-pin and tape cartridge comprising, a. a rod, b. a knob on the end of the rod, c. the other end of the rod being bifurcated, to receive an elongated strip therebetween, d. an elongated tube dimensioned to receive the rod by coaxial movement over the one end toward the knob, and having a longitudinal slit in the tube to accomodate the extension of a strip therefrom as the tube is applied to the rod, e. a strip passed through the bifurcated end of the rod, and extending out of the slit in the tube, f. a cassette, g. the remainder of the elongated strip in the cassette, h. the rod seated externally at the end of the cassette when the strip is wound up into the cassette.
Claim 2
Dependent Claim
130 words
A combination leader-pin and tape cartridge comprising, a. a rod, b. a knob on the end of the rod, c. the other end of the rod being bifurcated, to receive an elongated strip therebetween, d. an elongated tube dimensioned to receive the rod by coaxial movement over the one end toward the knob, and having a longitudinal slit in the tube to accomodate the extension of a strip therefrom as the tube is applied to the rod, e. a strip passed through the bifurcated end of the rod, and extending out of the slit in the tube, f. a cassette, g. the remainder of the elongated strip in the cassette, h. the rod seated externally at the end of the cassette when the strip is wound up into the cassette.
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) | 1980-06-06 | 1980-12-06 | 1981-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-06 | 1984-12-06 | 1985-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-06 | 1988-12-06 | 1989-06-07 | $7700.00 | Window Closed / Lapsed |