US3848265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape cassette
Assignee: INFORMATION TERMINALS CORP
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Filing: 1972-07-31
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Granted: 1974-11-12
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Expires: 1992-07-31
Abstract
Abstract An improved, Philips-type tape cassette having a shiftable tab for selectively blocking the opening formed by the removal of the conventional knock-out tab used to provide a means for determining the presence of pre-recorded material on the tape carried by the cassette. The two shells of the cassette have improved tongue and groove structure at the adjacent sides and ends to fit the shells together and to prevent relative movement therebetween. Relatively wide front and rear end walls on one of the shells provide a pair of beams of increased thickness to prevent bending of the cassette so as to maintain its structural integrity. An improved internal lock is provided near the central part of the rear wall where an attachment screw would be impractical. Each hub of the cassette has an improved leaderholding insert which is received within an outer peripheral recess and supports the tape across the recess to avoid ''''spoking'''' in the tape pack formed on the hub. Each of a pair of improved idler posts integral with one of the shells provides a pair of spaced, cylindrical bearing surfaces while providing a space for receiving lubricant. Tape guides near the open, tapeexposing extremity of the cassette are perpendicular to the inner surface of each shell to minimize the ''''barber pole'''' effect on the tape.
Inventors
- 👤 R Tregear
- 👤 P Biery
- 👤 V Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:43
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04; G11B23/08; G11B23/087
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
92 words
In a tape cassette: a housing having a wall provided with a hole therethrough for receiving a sensor pin; a tab for blocking said hole to prevent the insertion of the sensor pin therein; means mounting the tab on the shell for rotation from a first position out of closing relationship to the hole to a second position in closing relationship to said hole, whereby the latter can be selectively blocked; and means engageable with the outer peripheral edge of said tab for releasably holding the same in either of said positions.
Claim 2
Dependent Claim
92 words
In a tape cassette: a housing having a wall provided with a hole therethrough for receiving a sensor pin; a tab for blocking said hole to prevent the insertion of the sensor pin therein; means mounting the tab on the shell for rotation from a first position out of closing relationship to the hole to a second position in closing relationship to said hole, whereby the latter can be selectively blocked; and means engageable with the outer peripheral edge of said tab for releasably holding the same in either of said positions.
Claim 3
Dependent Claim
151 words
In a tape cassette: a housing having a front wall and a rear wall and adapted to receive a pair of tape reels therein and to allow the tape on the reels to move adjacent to and along the front wall thereof, the rear wall having a pair of spaced openings therein and a recess for each opening, respectively, each recess substantially surrounding the corresponding opening and extending laterally therefrom; a tab for each opening, respectively; and means coupled with each tab, respectively, for pivotally mounting the same on said housing for movement from a first position blocking the corresponding opening to a second position spaced from the opening and disposed within the laterally extending portion of the corresponding recess, said housing having edge portions near said rear wall for frictionally engaging the corresponding tab to releasably hold the latter against movement when the tab is in either of said positions.
Claim 4
Dependent Claim
151 words
In a tape cassette: a housing having a front wall and a rear wall and adapted to receive a pair of tape reels therein and to allow the tape on the reels to move adjacent to and along the front wall thereof, the rear wall having a pair of spaced openings therein and a recess for each opening, respectively, each recess substantially surrounding the corresponding opening and extending laterally therefrom; a tab for each opening, respectively; and means coupled with each tab, respectively, for pivotally mounting the same on said housing for movement from a first position blocking the corresponding opening to a second position spaced from the opening and disposed within the laterally extending portion of the corresponding recess, said housing having edge portions near said rear wall for frictionally engaging the corresponding tab to releasably hold the latter against movement when the tab is in either of said positions.
Claim 5
Dependent Claim
82 words
In a tape cassette as set forth in claim 2, wherein each tab includes a bead at one end and is provided with a transverse line of weakness spaced from the bead, said line of weakness defining the hinge line for the tab, the housing having a keyhole-shaped slot for receiving the bead and the adjacent portion of each tab, respectively, with the slot extending to the corresponding recess and the hinge line being disposed at the outer end of the slot.
Claim 6
Dependent Claim
65 words
In a tape cassette as set forth in claim 2, wherein each recess has a pair of adjacent side-by-side sections Corresponding to the first and second positions, respectively, of a tab, each tab having a flat body adapted to be complementally received within the corresponding recess section, the depth of each recess section being substantially the same as the thickness of the corresponding tab body.
Claim 7
Dependent Claim
166 words
In a tape cassette: a housing having a wall provided with a hole therethrough for receiving a sensor pin; a tab including a body having a pair of opposed ends and adapted for blocking said hole to prevent the insertion of the sensor pin therein; and a base hingedly secured to one end of said body, said base having a mounting bead at its outer end, there being a transverse hinge line between said base and said body, said housing having a boss adjacent to said wall, said boss having a recess for receiving the bead with the recess being spaced inwardly from the outer surface of the wall, the hinge line being adjacent to said outer surface of the wall to permit said body to pivot about the hinge line when the bead is received in the recess whereby the tab is mounted on the shell for movement into and out of closing relationship to the hole to permit the latter to be selectively blocked.
Claim 8
Dependent Claim
166 words
In a tape cassette: a housing having a wall provided with a hole therethrough for receiving a sensor pin; a tab including a body having a pair of opposed ends and adapted for blocking said hole to prevent the insertion of the sensor pin therein; and a base hingedly secured to one end of said body, said base having a mounting bead at its outer end, there being a transverse hinge line between said base and said body, said housing having a boss adjacent to said wall, said boss having a recess for receiving the bead with the recess being spaced inwardly from the outer surface of the wall, the hinge line being adjacent to said outer surface of the wall to permit said body to pivot about the hinge line when the bead is received in the recess whereby the tab is mounted on the shell for movement into and out of closing relationship to the hole to permit the latter to be selectively blocked.
Claim 9
Dependent Claim
125 words
In a tape cassette: a housing having a wall provided with a hole therethrough for receiving a sensor pin; and a tab for blocking said hole to prevent the insertion of the sensor pin therein, the tab having a transverse hinge line intermediate its ends and being provided with a bead at one end thereof, said housing having a boss provided with a keyhole-shaped slot therein for receiving the bead and the adjacent portion of the tab, the slot having a length substantially equal to the distance between the bead and the hinge line of the tab, whereby the tab can be mounted on the shell for movement into and out of closing relationship to the hole to permit the latter to be selectively blocked.
Claim 10
Dependent Claim
125 words
In a tape cassette: a housing having a wall provided with a hole therethrough for receiving a sensor pin; and a tab for blocking said hole to prevent the insertion of the sensor pin therein, the tab having a transverse hinge line intermediate its ends and being provided with a bead at one end thereof, said housing having a boss provided with a keyhole-shaped slot therein for receiving the bead and the adjacent portion of the tab, the slot having a length substantially equal to the distance between the bead and the hinge line of the tab, whereby the tab can be mounted on the shell for movement into and out of closing relationship to the hole to permit the latter to be selectively blocked.
Claim 11
Dependent Claim
136 words
In a tape cassette: a housing having a wall provided with a hole therethrough for receiving a sensor pin; a tab for blocking said hole to prevent the insertion of the sensor pin therein, the tab being pivotally mounted on the housing near the wall for movement into and out of closing relationship to the hole, whereby the latter can be selectively blocked, said wall having a recess formed therein with the recess having a pair of side-by-side sections, each of the sections being generally complemental to a portion of said tab, one of the sections being in substantially surrounding relationship to said opening, the outer peripheral edge of the tab being movable into releasably holding relationship to the portions of the wall defining the recess when the tab is in either of said recess sections.
Claim 12
Dependent Claim
136 words
In a tape cassette: a housing having a wall provided with a hole therethrough for receiving a sensor pin; a tab for blocking said hole to prevent the insertion of the sensor pin therein, the tab being pivotally mounted on the housing near the wall for movement into and out of closing relationship to the hole, whereby the latter can be selectively blocked, said wall having a recess formed therein with the recess having a pair of side-by-side sections, each of the sections being generally complemental to a portion of said tab, one of the sections being in substantially surrounding relationship to said opening, the outer peripheral edge of the tab being movable into releasably holding relationship to the portions of the wall defining the recess when the tab is in either of said recess sections.
References Cited (Backward Citations)
US3416150A
Cited
FR1498288A
Cited
US3617067A
Cited
US3677556A
Cited
US3601555A
Cited
US3686470A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |