Patent US3855628A successfully refreshed from Google Patents.
US3855628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape head rotator mechanism
Assignee: Motorola Solutions Inc
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Filing: 1973-02-16
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Granted: 1974-12-17
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Expires: 1993-02-16
Abstract
Abstract A tape head rotator mechanism in a multiple track tape recorder/reproducer includes a tape head connected to a shaft with a pinion on the opposite end thereof which engages a cam connected to a driving gear driven by a worm gear. The cam longitudinally displaces the shaft with the pinion gear engaging gear teeth on the face of the drive gear for rotating the shaft and head 180*, and the pinion subsequently is disengaged from the gear teeth with the tape head returning to engagement with the tape by spring action.
Inventors
- 👤 M Bachmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:22
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
183 words
A tape recorder/reproducer utilizing tape having at least two sets of tracks thereon including in combination, a tape head having a pick up portion, actuator means, drive gear means coupled to said actuator means, said drive gear means including a portion having a plurality of gear sections, a cam mounted for rotation by said drive gear means, a shaft having said tape head mounted on one end thereof and gear means mounted on the other end thereof, and means for mounting said shaft for longitudinally slidable movement, whereby said actuator means in response to a predetermined event rotates said drive means to engage said cam with said gear means on the end of said shaft to longitudinally slide the shaft thereby moving said tape head away from the tape, with one of said plurality of gear sections of said drive gear means engaging said gear means on said shaft to rotate said tape head 180*, and resilient means connected between said shaft mounting means and said tape head for re-engaging said tape head with said tape with said tape head being rotated 180*.
Claim 2
Dependent Claim
183 words
A tape recorder/reproducer utilizing tape having at least two sets of tracks thereon including in combination, a tape head having a pick up portion, actuator means, drive gear means coupled to said actuator means, said drive gear means including a portion having a plurality of gear sections, a cam mounted for rotation by said drive gear means, a shaft having said tape head mounted on one end thereof and gear means mounted on the other end thereof, and means for mounting said shaft for longitudinally slidable movement, whereby said actuator means in response to a predetermined event rotates said drive means to engage said cam with said gear means on the end of said shaft to longitudinally slide the shaft thereby moving said tape head away from the tape, with one of said plurality of gear sections of said drive gear means engaging said gear means on said shaft to rotate said tape head 180*, and resilient means connected between said shaft mounting means and said tape head for re-engaging said tape head with said tape with said tape head being rotated 180*.
Claim 3
Dependent Claim
21 words
The tape recorder/reproducer of claim 1 wherein said gear means connected to the end of said shaft is a pinion gear.
Claim 4
Dependent Claim
43 words
The tape recorder/reproducer of claim 2 wherein said actuator means is a gear rack, and said drive gear means includes a round gear having a face, with said cam being eliptical in shape and being mounted on the face of said round gear.
Claim 5
Dependent Claim
22 words
A tape recorder/reproducer according to claim 1 wherein said means for supporting said shaft includes a housing and bearings in said housing.
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) | 1977-12-16 | 1978-06-17 | 1978-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-16 | 1982-06-17 | 1982-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-16 | 1986-06-17 | 1986-12-17 | $7700.00 | Window Closed / Lapsed |