US3661394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape recorder with pointer drive
Assignee: Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH
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Filing: 1970-04-14
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Granted: 1972-05-09
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Expires: 1990-04-14
Abstract
Abstract A tape cartridge is inserted into a pivotally mounted opened holding lid and assumes a preliminary position in which a coupling means in the cartridge is aligned with a coupling means on a drive shaft projecting from the tape recording housing. When the holding lid is closed, the coupling means engage each other and the drive shaft drives a pointer-operating transmission through the engaged coupling means.
Inventors
- 👤 Imre Siller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:41
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04; G11B23/08; G11B23/087; G11B23/08707; G11B23/0875; G11B15/00; G11B15/675; G11B15/67581; G11B15/67584; G11B27/00; G11B27/10; G11B27/34
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
211 words
Tape recorder with pointer drive, comprising housing means having a guide portion; a drive shaft mounted in said housing means rotatable about a first axis, and including first coupling means having a non-circular first coupling portion projecting from said housing means in the direction of said first axis; and a tape cartridge including a casing, and a pointer-operating transmission mounted in said casing and including meshing gears and a second coupling means on one of said meshing gears rotatable with the same about a second axis and having a noncircular second coupling portion extending in the direction of said second axis, said casing abutting said guide pOrtion of said housing means in a preliminary position in which said first and second axes register and said first and second coupling portions are spaced in axial direction from each other, said tape cartridge being guided by said guide portion for movement transverse to said first and second registering axes to and from said preliminary position, and also guided for movement from said preliminary position in the direction of said first axis to and from an operative position in which said first and second coupling portions engage each other whereby said drive shaft drives said pointer-operating transmission by said first and second coupling portions.
Claim 2
Dependent Claim
211 words
Tape recorder with pointer drive, comprising housing means having a guide portion; a drive shaft mounted in said housing means rotatable about a first axis, and including first coupling means having a non-circular first coupling portion projecting from said housing means in the direction of said first axis; and a tape cartridge including a casing, and a pointer-operating transmission mounted in said casing and including meshing gears and a second coupling means on one of said meshing gears rotatable with the same about a second axis and having a noncircular second coupling portion extending in the direction of said second axis, said casing abutting said guide pOrtion of said housing means in a preliminary position in which said first and second axes register and said first and second coupling portions are spaced in axial direction from each other, said tape cartridge being guided by said guide portion for movement transverse to said first and second registering axes to and from said preliminary position, and also guided for movement from said preliminary position in the direction of said first axis to and from an operative position in which said first and second coupling portions engage each other whereby said drive shaft drives said pointer-operating transmission by said first and second coupling portions.
Claim 3
Dependent Claim
94 words
Tape recorder as claimed in claim 1 wherein said pointer-operating transmission includes a screw spindle mounted for turning movement in said casing, a pointer-carrying nut mounted on said screw spindle and guided in said casing for movement along said screw spindle, a worm gear secured to one end of said screw spindle, and a worm screw meshing with said worm gear and being mounted in said casing for rotation about said second axis; and wherein said second coupling portion is secured to said worm screw for rotation with the same about said second axis.
Claim 4
Dependent Claim
49 words
Tape recorder as claimed in claim 1 wherein one of said first and second coupling means has an axially projecting coupling portion, and the other coupling means has an axially recessed coupling portion in which said projecting coupling portion is located in said operative position of said tape cartridge.
Claim 5
Dependent Claim
49 words
Tape recorder as claimed in claim 1 wherein said first coupling portion is a diametrical coupling projection on the end face of said drive shaft; and wherein said second coupling portion is formed with a recess for receiving said diametrical coupling projection in said operative position of said cartridge.
Claim 6
Dependent Claim
56 words
Tape recorder as claimed in claim 1 wherein said casing of said cartridge has a casing wall located in said operative position in a plane perpendicular to said first axis, and being tilted in said preliminary position relative to said plane at an acute angle; and wherein said second axis is perpendicular to said casing wall.
Claim 7
Dependent Claim
79 words
Tape recorder as claimed in claim 5 wherein said casing has a bore; wherein said second coupling means includes a cylindrical portion integral with said one gear and being rotatable in said bore, said cylindrical portion having an end face flush with the outer surface of said casing wall and a recessed second coupling portion; and wherein said first coupling portion includes a coupling projection engaging said recessed second coupling portion in said operative position of said tape cartridge.
Claim 8
Dependent Claim
80 words
Tape recorder as claimed in claim 5 wherein said housing means includes holding means for said tape cartridge mounted for angular movement with said tape cartridge between a normal position in which said tape cartridge is in said operative position, and an inserting position displaced relative to said plane so that said tape cartridge can be inserted into said displaced holding means and until abutting the same in said preliminary position for movement with the same to said operative position.
Claim 9
Dependent Claim
97 words
Tape recorder as claimed in claim 1 wherein said housing means includes a housing having means for mounting said drive shaft and an opening through which said free end of said drive shaft projects, and a holding lid mounted on said housing for angular movement between a closing position closing said opening, and an open position; wherein said tape cartridge is inserted into, and then held by said holding lid in said preliminary position abutting the same, and is movable with the same to said closing position in which said tape cartridge is in said operative position.
Claim 10
Dependent Claim
48 words
Tape recorder as claimed in claim 8 wherein said housing means includes means for mounting said holding lid on said housing for angular movement about an axis perpendicular to said second axis; and wherein said holding lid is tiltable an acute angle between said Closing and open positions.
Claim 11
Dependent Claim
139 words
Tape recorder as claimed in claim 8 wherein said housing means includes means for mounting said holding lid for angular movement about a tilting axis; wherein said holding lid has a cavity into which a portion of said tape cartridge fits so that the same can be inserted into said cavity in said open position and is held abutting the same in said preliminary position; wherein said tape cartridge has a narrow side wall bounding said cartridge portion and located in said cavity; wherein said transmission means and second coupling means are located in said portion of said tape cartridge; wherein said side wall is parallel to said tilting axis and is located adjacent said mounting means and the part of said holding lid mounted on the same; and wherein said second axis is perpendicular to said tilting axis.
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) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |