Patent US4089487A successfully refreshed from Google Patents.
US4089487A
Expired / Lapsed
US
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Apparatus for tape recorder
Assignee: Olympus Corp
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Filing: 1976-09-15
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Granted: 1978-05-16
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Expires: 1996-09-15
Abstract
Abstract An apparatus for use with a tape recorder having a support member which supports a tape supply shaft and providing an indication of a tape end through its displacement which occurs in response to an increase in the tape tension as the tape reaches its terminal end, and also having a review/rewind actuating member which may be operated to change the direction of tape feed to run the tape in a rewind direction. The apparatus comprises a detent member which is operated as the review/rewind actuating member is operated to move into the path of movement of the support member to prevent its displacement, thereby inhibiting the detection of a tape end during a review or rewind operation.
Inventors
- 👤 Hiroki Ichikawa
- 👤 Masao Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:34
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/02; G11B15/16; G11B15/18; G11B15/44; G11B15/444
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
217 words
In a tape recorder having a review/rewind manual control member and a displaceably mounted support member with a tape supply carrier comprising a driven wheel and being mounted for rotation on said support member and displaceable therewith an having means whereby increased tension of tape on said driven wheel carried thereby effects displacement of said support member at the end of tape undwinding and wherein said tape recorder has warning signal switch means disposed to be actuated responsive to said displacement of said support member for effecting energization of a warning signal when tape tension increases and including drive means movable against said driven wheel to effect driving engagement for review-rewind rotation responsive to operation of said manual control member; the improvement which comprises detent means for preventing a false warning signal due to unwanted displacement of said support member caused by said driving engagement when said manual control member is operated; said detent means comprising a detent element actuatable by operation of said manual control member to move to a predetermined position relative to said support member; and a coacting detent element carried by said support member engageable with said first mentioned detent element thereby preventing displacement of said support member to preclude actuation of said signal switch means during review/rewind operation of said tape recorder.
Claim 2
Dependent Claim
217 words
In a tape recorder having a review/rewind manual control member and a displaceably mounted support member with a tape supply carrier comprising a driven wheel and being mounted for rotation on said support member and displaceable therewith an having means whereby increased tension of tape on said driven wheel carried thereby effects displacement of said support member at the end of tape undwinding and wherein said tape recorder has warning signal switch means disposed to be actuated responsive to said displacement of said support member for effecting energization of a warning signal when tape tension increases and including drive means movable against said driven wheel to effect driving engagement for review-rewind rotation responsive to operation of said manual control member; the improvement which comprises detent means for preventing a false warning signal due to unwanted displacement of said support member caused by said driving engagement when said manual control member is operated; said detent means comprising a detent element actuatable by operation of said manual control member to move to a predetermined position relative to said support member; and a coacting detent element carried by said support member engageable with said first mentioned detent element thereby preventing displacement of said support member to preclude actuation of said signal switch means during review/rewind operation of said tape recorder.
Claim 3
Dependent Claim
53 words
In a tape recorder as set forth in claim 1, means comprising an actuating member intermediate said manual control member and said drive means and operable by actuation of said manual control member to move said drive means against said driven wheel; said first mentioned detent element being carried on said actuating member.
References Cited (Backward Citations)
US3572606A
Cited
US3946436A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-15 | 1981-11-14 | 1982-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-15 | 1985-11-14 | 1986-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-15 | 1989-11-14 | 1990-05-16 | $7700.00 | Window Closed / Lapsed |