Patent US5448301A successfully refreshed from Google Patents.
Patent US4283022A successfully refreshed from Google Patents.
US4283022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double-volumed tape cartridge operative at two ends
Assignee: Individual
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Filing: 1979-12-19
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Granted: 1981-08-11
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Expires: 1999-12-19
Abstract
Abstract A tape cassette comprising a cassette housing consisting of two substantially identical sections; a pair of reel spindles on one housing section and beside either end of the tape cassette; a slot between either pair of reel spindles and on the housing section mounted with reel spindles; two rods adjustably located within the slot; a plate with a slot propping on the two rods to receive the tape coming from one reel spindle for preventing the same from abrasing other parts of the tape; a plate on one tape reel on the reel spindle for regulating the tape speed and cooperating the plate on two rods to prevent the tape from loosening when the tape is turned upside down; a tape pack circulating around either pair of reel spindles through two pressure pads respectively for the magnetic head and the sound track switching device on the tape reproducing apparatus, a rubber roller and a guide rod.
Inventors
- 👤 Kuen-Ming Chen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:06
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
325 words
A tape cassette comprising: a cassette housing consisting of two substantially identical sections, one of said sections having a first slot therein; at least one tape transport mechanism in one of said sections, said transport mechanism including a pair of reel bases, a pair of reel spindles and a first guide rod, said pair of reel bases being loaded on said reel spindles and said first slot being positioned between said reel spindles of said pair of reel spindles; two further guide rods located within said slot; a first plate extending between said further rods and having a second slot therein, said second slot being positioned to receive tape; a second plate on a reel loaded on one of said reel bases and rotatable accompanying said reel; and a rubber roller and two pressure pads defining with said first guide rod and said second slot a tape path; wherein the other of said two substantially identical sections has a further first slot therein; at least one further tape transport mechanism in the other of said sections, said further transport mechanism including a further pair of reel bases, a further pair of reel spindles and a further first guide rod, said further pair of reel bases being loaded on said further pair of reel spindles and said further first slot being positioned between said reel spindles of said further pair of reel spindles; two additional further guide rods located within said further first slot; a further first plate extending between said two additional further guide rods and having a further second slot therein, said further second slot being positioned to receive another tape; a further second plate on a further reel loaded on one of said reel bases of said further pair of reel bases and rotatable accompanying said further reel; and a further rubber roller and two additional pressure pads defining with said further first guide rod and said further second slot another tape path.
Claim 2
Dependent Claim
325 words
A tape cassette comprising: a cassette housing consisting of two substantially identical sections, one of said sections having a first slot therein; at least one tape transport mechanism in one of said sections, said transport mechanism including a pair of reel bases, a pair of reel spindles and a first guide rod, said pair of reel bases being loaded on said reel spindles and said first slot being positioned between said reel spindles of said pair of reel spindles; two further guide rods located within said slot; a first plate extending between said further rods and having a second slot therein, said second slot being positioned to receive tape; a second plate on a reel loaded on one of said reel bases and rotatable accompanying said reel; and a rubber roller and two pressure pads defining with said first guide rod and said second slot a tape path; wherein the other of said two substantially identical sections has a further first slot therein; at least one further tape transport mechanism in the other of said sections, said further transport mechanism including a further pair of reel bases, a further pair of reel spindles and a further first guide rod, said further pair of reel bases being loaded on said further pair of reel spindles and said further first slot being positioned between said reel spindles of said further pair of reel spindles; two additional further guide rods located within said further first slot; a further first plate extending between said two additional further guide rods and having a further second slot therein, said further second slot being positioned to receive another tape; a further second plate on a further reel loaded on one of said reel bases of said further pair of reel bases and rotatable accompanying said further reel; and a further rubber roller and two additional pressure pads defining with said further first guide rod and said further second slot another tape path.
Claim 3
Dependent Claim
38 words
A tape cassette as claimed in claim 1, including respective screw holes provided in axles of said rubber rollers, and respective screws extending through said sections and into said holes to fasten said two substantially identical sections together.
Claim 4
Dependent Claim
61 words
A tape cassette as claimed in claim 1, wherein said reel bases have reel axles having bottoms and are tapered downwards with a flat conical base portion formed on said bottoms thereof, a plurality of radial rails on said bottoms, the thickness of respective peripheral edges of said bottoms being gradually thinner in a radial direction from corresponding said reel axles.
Claim 5
Dependent Claim
56 words
A tape cassette as claimed in claim 1, wherein said second plate and said further second plate on said reel and said further reel are ring-like around said reel spindles, a respective central hole in respective said second plate and said further respective plate, and a plurality of half-circular concaves being provided along said central holes.
Claim 6
Dependent Claim
78 words
A tape cassette as claimed in claim 1, wherein each of said rods within said first slot and said further first slot comprise a respective screw bolt and a respective screw cap screwed together through associated ones of these slots between corresponding reel spindles of said pair of reel spindles and said further pair of reel spindles, a respective sleeve being mounted around each of said rods which extend through said first slot and said further first slot.
Claim 7
Dependent Claim
37 words
A tape cassette as claimed in claim 1, wherein said first plate and said further first plate are crescent-shaped and have two openings for passing said further two guide rods and said additional, further two guide rods.
Claim 8
Dependent Claim
62 words
A tape cassette as claimed in claim 1, wherein tape loaded on one of said reel bases passes in turn through said second slot on said first plate, said two pressure pads, said rubber roller, said first guide rod and the other reel base of the first said pair of reel bases and returns to the original reel base of this pair.
Claim 9
Dependent Claim
75 words
A tape cassette as claimed in claim 1, wherein tape loaded on one of said reel bases of said further pair of reel bases passes in turn through said further second slot on said further first plate, said further two pressure pads, said further rubber roller, said further first guide rod and the other of said reel bases of said further pair of reel bases and returns to the original reel base of this pair.
Claim 10
Dependent Claim
133 words
A tape cassette comprising: a cassette housing having a first slot therein; at least one tape transport mechanism within said housing, said transport mechanism including a pair of reel bases, a pair of reel spindles and a first guide rod, said pair of reel bases being loaded on said reel spindles and said first slot being positioned between said reel spindles; two further guide rods located within said first slot; a first plate extending between said two further guide rods and having a second slot therein, said second slot being positioned to receive tape; a second plate on a reel loaded on one of said reel bases and rotatable accompanying said reel; and a rubber roller and two pressure pads defining with said first guide rod and said second slot a tape path.
Claim 11
Dependent Claim
133 words
A tape cassette comprising: a cassette housing having a first slot therein; at least one tape transport mechanism within said housing, said transport mechanism including a pair of reel bases, a pair of reel spindles and a first guide rod, said pair of reel bases being loaded on said reel spindles and said first slot being positioned between said reel spindles; two further guide rods located within said first slot; a first plate extending between said two further guide rods and having a second slot therein, said second slot being positioned to receive tape; a second plate on a reel loaded on one of said reel bases and rotatable accompanying said reel; and a rubber roller and two pressure pads defining with said first guide rod and said second slot a tape path.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-08-10 | 1985-02-09 | 1985-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-10 | 1989-02-09 | 1989-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-10 | 1993-02-09 | 1993-08-11 | $7700.00 | Window Closed / Lapsed |