US3695553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cassette tape assembly
Assignee: Ampex Corp
•
Filing: 1970-08-24
•
Granted: 1972-10-03
•
Expires: 1990-08-24
Abstract
Abstract By adhering a reinforcing strip to each end of a magnetic tape and attaching these reinforced tape ends to supply and take-up reels in a cassette housing, the use of special leaders and the splicing thereof to the tape ends has been eliminated. The reinforced tape ends are of sufficient length to extend from its associated reel, when emptied, across the front of the cassette housing to a capstan receiving opening to reinforce the tape against breakage due to wear by the capstan and preferably to and about the outer convolution of tape on the other reel to aid in withstanding tensile forces.
Inventors
- 👤 Thomas David Everett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:40
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04; G11B23/08; G11B23/087
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
236 words
In a tape cassette, a plastic housing, a supply reel disposed within said housing for winding a coil of tape thereon, a take-up reel mounted in spaced relation to the supply reel in said housing for winding the tape thereon fed from said supply reel, said supply and take-up reels being rotatably mounted in said housing and having a fixed relationship to said housing, a magnetic tape for transport back and forth between said reels and for coiling and uncoiling on said reels, tape guides in said housing for guiding the magnetic tape past openings on a wall of the housing to admit a transducer head, at least one elongated reinforcing strip bonded to and along a length of each end portion of said magnetic tape, one reinforced end of said magnetic tape extending to said supply reel and the other reinforced end of said magnetic tape extending to said take-up reel, means in said housing defining an opening to receive a rotatable capstan, and means on said respective supply and takeup reels to anchor the respective reinforced tape ends to their respectively associated reels, each of said reinforced ends being of sufficient length to extend from its associated reel when empty past said tape guides, said transducer head, and said capstan receiving opening to the other reel to reinforce the tape against tension forces and against breaking due to rubbing and wear by a capstan.
Claim 2
Dependent Claim
236 words
In a tape cassette, a plastic housing, a supply reel disposed within said housing for winding a coil of tape thereon, a take-up reel mounted in spaced relation to the supply reel in said housing for winding the tape thereon fed from said supply reel, said supply and take-up reels being rotatably mounted in said housing and having a fixed relationship to said housing, a magnetic tape for transport back and forth between said reels and for coiling and uncoiling on said reels, tape guides in said housing for guiding the magnetic tape past openings on a wall of the housing to admit a transducer head, at least one elongated reinforcing strip bonded to and along a length of each end portion of said magnetic tape, one reinforced end of said magnetic tape extending to said supply reel and the other reinforced end of said magnetic tape extending to said take-up reel, means in said housing defining an opening to receive a rotatable capstan, and means on said respective supply and takeup reels to anchor the respective reinforced tape ends to their respectively associated reels, each of said reinforced ends being of sufficient length to extend from its associated reel when empty past said tape guides, said transducer head, and said capstan receiving opening to the other reel to reinforce the tape against tension forces and against breaking due to rubbing and wear by a capstan.
Claim 3
Dependent Claim
60 words
A tape cassette in accordance with claim 1 in which each of said reinforced ends when extending from its associated empty reel is coiled about the other reel, each of said reinforcing ends being substantially unapertured, and in which a pressure sensitive adhesive coating is coextensive with each of said strips for adhering the reinforcing strips to the magnetic tape.
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) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |