EP0201258A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Reusable record tab for videotape cassette
Assignee: 3M Co
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Filing: 1986-04-28
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Granted: —
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Expires: 2006-04-28
Abstract
Abstract A reusable record tab (20, 50) forthe record-lockout opening (14, 44) of a recording tape cassette, which tab (20, 50) comprises a body (22, 52) that blocks the opening and at least one resilient leg (24, 54) projecting from the body (22, 52). The leg (22, 52) is bowed to press against an inner ramp (15, 58) of the cassette housing to hold the record tab (20, 50) snugly in the opening and the body (22, 52) has a small aperture (32, 66) for receiving the point of a writing instrumentto remove the record tab (20, 50).
Inventors
- 👤 Carl S. C/O Minnesota Mining And Ahlberg
- 👤 Gerald J. C/O Minnesota Mining And Niles
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 17:24
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04; G11B23/08; G11B23/041; G11B23/042
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
171 words
A recording tape cassette comprising a housing including an external wall which is formed to define a record-lockout opening characterized in that the housing is formed to have an inner ramp (18, 58) at the opening (14, 44), and said cassette includes a reusable record tab (20, 50) which removably fits into the opening (14, 44), said record tab (20, 50) comprising: a.body (22, 52) which is substantially coextensive with said opening (14, 44), and at least one resilient leg (24, 54) projecting from said body (22, 52), the leg (24, 54) being bowed to press against said inner ramp (15, 58) when the record tab (20, 50) is inserted into the opening (14, 44), thus holding the record tab (20, 50) snugly in position, the body (22, 52) being formed to define an aperture (32, 66) through its external face (25, 62) approximating the size of the point of a writing instrument which can be inserted in the aperture (32, 66) for convenient removal of the record tab (20, 50).
Claim 2
Dependent Claim
171 words
A recording tape cassette comprising a housing including an external wall which is formed to define a record-lockout opening characterized in that the housing is formed to have an inner ramp (18, 58) at the opening (14, 44), and said cassette includes a reusable record tab (20, 50) which removably fits into the opening (14, 44), said record tab (20, 50) comprising: a.body (22, 52) which is substantially coextensive with said opening (14, 44), and at least one resilient leg (24, 54) projecting from said body (22, 52), the leg (24, 54) being bowed to press against said inner ramp (15, 58) when the record tab (20, 50) is inserted into the opening (14, 44), thus holding the record tab (20, 50) snugly in position, the body (22, 52) being formed to define an aperture (32, 66) through its external face (25, 62) approximating the size of the point of a writing instrument which can be inserted in the aperture (32, 66) for convenient removal of the record tab (20, 50).
Claim 3
Dependent Claim
47 words
A cassette according to claim 1 further characterized in that the inner ramp (18) is the inner face of said external wall (13) of the housing, and the housing is formed with a wall (16) beneath the record-lockout opening (14) and extending parallel to said ramp (18).
Claim 4
Dependent Claim
70 words
A cassette according to claim 2 further characterized in that the external face (26) of the body (22) of the record tab (20) lies substantially in the plane of the outer face (28) of said external wall (13), and the opposite face (30) of the body rests against the outer face of the wall (16) beneath the opening (14) when the record tab (20) is inserted into the opening (14).
Claim 5
Dependent Claim
45 words
A cassette according to claim 1 further characterized in that said aperture (32) extends through the external face (26) of the body (22)at the edge of the body (22) closest to said ramp (18) when the record tab (20) is inserted into the opening (14).
Claim 6
Dependent Claim
44 words
A cassette according to claim 4 further characterized in that the walls of said aperture (32) are sloped to permit a writing instrument to penetrate the aperture (32) at an acute angle with respect to the outer face (28) of said external wall (13).
Claim 7
Dependent Claim
45 words
A cassette according to claim 5 further characterized in that the edge (34) of said opposite face (30) of the body (22), which edge (34) is opposite to the leg (24), is rounded to facilitate pushing the record tab (20) out of the opening (14).
Claim 8
Dependent Claim
52 words
A cassette according to claim 1 further characterized in that said record tab (20, 50) comprises two legs (24, 54), each bowed so that a convex surface of the leg (20, 50) presses against said inner ramp (18, 58) when the record tab (20, 50) is inserted into the opening (14, 44).
Claim 9
Dependent Claim
80 words
A cassette according to claim 1 further characterized in that at the record-lockout opening (44) the inner ramp (58) extends substantially orthogonally to the outer face (64) of said external wall (43) of the housing, a second inner ramp (58) extends substantially parallel to the first ramp (58), and the record tab (50) is formed with two outwardly bowed legs (54) which are pinched between the two ramps (58) when the record tab (50) is inserted into the opening (44).
Claim 10
Dependent Claim
25 words
A cassette according to claim 8 further characterized in that the two legs (54) of the record tab (50) are joined at their extremities (56).
Claim 11
Dependent Claim
20 words
A cassette according to claim 9 further characterized in that the legs (54) are tapered inwardly toward their extremities (56).
Claim 12
Dependent Claim
30 words
A cassette according to claim 8 further characterized in that said aperture (66) extends through the external face (62) of said body (52) at an edge of the body (52).
Claim 13
Dependent Claim
27 words
A cassette according to claim 1 further characterized in that both the housing (10, 12, 40, 42) and the record tab (20, 50) are of molded plastic.
Claim 14
Dependent Claim
26 words
A cassette according to claim 12 further characterized in that color of the plastic of the record tab (20, 50) contrasts to that of the housing.
Claim 15
Dependent Claim
163 words
A reusable record tab for use in a recording tape cassette comprising a housing including an external wall which is formed to define a record-lockout opening (14, 44), the housing also being formed to have an inner ramp at the opening (14, 44), characterized in that said reusable record tab (20, 50) removably fits into the opening (14, 44) and comprises: a body (22,52) which is substantially coextensive with said opening (14, 44), and at least one resilient leg (24, 54) projecting from said body (22, 54), the leg (24, 54) being bowed to press against said inner ramp (18, 58) when the record tab (20, 50) is inserted into the opening (14, 48), thus holding the record tab (20, 50) snugly in position, the body being formed to define an aperture (32, 66) through its external face (26, 62) approximating the size of the point of a writing instrument which can be inserted for convenient removal of the record tab (20, 50).
Claim 16
Dependent Claim
163 words
A reusable record tab for use in a recording tape cassette comprising a housing including an external wall which is formed to define a record-lockout opening (14, 44), the housing also being formed to have an inner ramp at the opening (14, 44), characterized in that said reusable record tab (20, 50) removably fits into the opening (14, 44) and comprises: a body (22,52) which is substantially coextensive with said opening (14, 44), and at least one resilient leg (24, 54) projecting from said body (22, 54), the leg (24, 54) being bowed to press against said inner ramp (18, 58) when the record tab (20, 50) is inserted into the opening (14, 48), thus holding the record tab (20, 50) snugly in position, the body being formed to define an aperture (32, 66) through its external face (26, 62) approximating the size of the point of a writing instrument which can be inserted for convenient removal of the record tab (20, 50).
Claim 17
Dependent Claim
68 words
A reusable record tab (20) according to claim 14 further characterized in that the external face (26) of the body (22) lies substantially in the plane of the outer face (28) of said external wall (13), and the opposite face (30) of said body rests against the outer face of the wall (16) beneath the opening (14) when the record tab (20) is inserted into the opening (14).
Claim 18
Dependent Claim
49 words
A resuable record tab (20) according to claim 15 further characterized in that said aperture (32) extends through the external face (26) of the body (22) at the edge of the body (22) closest to said ramp (18) when the record tab (20) is inserted into the opening (14).
Claim 19
Dependent Claim
48 words
A reusable record tab (20) according to claim 16 further characterized in that the edge (34) of said opposite face (30) of the body (22), which edge (34) is opposite to the leg (24), is rounded to facilitate pushing the record tab (20) out of the opening (14).
Claim 20
Dependent Claim
20 words
A reusable record tab (20, 50) according to claim 14 further characterized by housing two outwardly bowed legs (24, 54).
Claim 21
Dependent Claim
22 words
A reusable record tab (50) according to claim 18 further characterized in that the legs (54) are joined at their extremities (56).
Claim 22
Dependent Claim
23 words
A reusable record tab (50) according to claim 19 further characterized in that the legs (54) are tapered inwardly toward their extremities (56).
References Cited (Backward Citations)
No citation records indexed.
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