Patent US3710037A successfully refreshed from Google Patents.
US3710037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removable magnetic head assembly with lifter fingers
Assignee: United Res Laboratory
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Filing: 1971-02-04
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Granted: 1973-01-09
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Expires: 1991-02-04
Abstract
Abstract A tape deck is provided with a detachable magnetic head assembly including a group of tape lifter fingers mounted on the assembly and detachable from the deck with the assembly. The fingers are pivotable on a pivot and one of the fingers has a fork extending therefrom which is engaged by the pin of a rotary solenoid which supplies the force by which the fingers are pivoted. The fingers are mounted between magnetic heads and serve to lift magnetic tape from these heads.
Inventors
- 👤 G Adams
- 👤 J Hawkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:19
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/60
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
82 words
A detachable head assembly for a tape deck, said assembly comprising a support, at least one magnetic head on said support, said head being traversable by a tape moving along a tape path, lifter means on said support to traverse said path and remove the tape from said head, said means and head being detachable with said support as a unit from the tape deck, and plug means on the support for physically and electrically connecting the assembly to said tape deck.
Claim 2
Dependent Claim
82 words
A detachable head assembly for a tape deck, said assembly comprising a support, at least one magnetic head on said support, said head being traversable by a tape moving along a tape path, lifter means on said support to traverse said path and remove the tape from said head, said means and head being detachable with said support as a unit from the tape deck, and plug means on the support for physically and electrically connecting the assembly to said tape deck.
Claim 3
Dependent Claim
22 words
An assembly as claimed in claim 1 wherein said lifter means includes at least one lifter finger with a cylindrical surface thereon.
Claim 4
Dependent Claim
22 words
An assembly as claimed in claim 1 wherein said support is provided with openings through which the tape is adapted to pass.
Claim 5
Dependent Claim
32 words
An assembly as claimed in claim 1, wherein said lifter means includes a finger for traversing said path to lift the tape from said head and a solenoid for operating said finger.
Claim 6
Dependent Claim
23 words
An assembly as claimed in claiM 4, wherein said lifter means includes a pivot supporting said finger for pivotable movement through said path.
Claim 7
Dependent Claim
53 words
An assembly as claimed in claim 5, wherein said solenoid is a rotary solenoid and includes a pin offset from the axis of the solenoid and extending axially from the solenoid, said lifter means including a fork extending from said finger straddling said pin which operates through said fork to displace said finger.
Claim 8
Dependent Claim
59 words
An assembly as claimed in claim 1 comprising a plurality of magnetic heads including the first said head, said heads being in spaced relation and cooperatively defining a portion of said path, said lifter means including fingers interposed between said heads and a pivot supporting said fingers for pivotable movement in planes at least substantially perpendicular to said path.
Claim 9
Dependent Claim
35 words
An assembly as claimed in claim 7 wherein said lifter means includes electromechanical means for pivoting one of said fingers which in turn is effective through said pivot to pivot the other of said fingers.
Claim 10
Dependent Claim
17 words
An assembly as claimed in claim 8 wherein said heads are respectively record, reproduce and erase heads.
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) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |