Patent US4259699A successfully refreshed from Google Patents.
US4259699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic recording medium guiding apparatus
Assignee: Canon Inc
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Filing: 1979-03-09
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Granted: 1981-03-31
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Expires: 1999-03-09
Abstract
Abstract A magnetic medium feeding apparatus comprises a guide or a pressing member so biased as to keep the feeding load of magnetic medium substantially constant and also to apply a pressure to the magnetic medium through the guide or the pressing member so that a very smooth feeding of the magnetic medium may be assured in either case of automatic feed (by driving force of a motor or the like) and hand feed. The feeding apparatus for magnetic medium allows to smoothly feed various magnetic media different in thickness.
Inventors
- 👤 Shigeru Yoshida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:04
CPC Classifications
G; G06; G06K; G06K13/00; G06K13/02; G06K13/06; G06K13/063
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
197 words
A device for guiding a manually urged recording medium, comprising: first supporting guide means having an elongate planar surface second supporting guide means having an elongate planar surface and facing said first mentioned surface a base, means associated with said base and said guide means for supporting one end of one of said guide means and the opposite end of the other of said guide means for pivotal movement relative to said base, bias means urging the free end of each of said first and second guide means toward the pivoted end of the other of said guide means, respectively, a magnetic head for reading or writing information out of or into a recording medium, said head being mounted on one of said guide means means disposed opposite the magnetic head and mounted on the other of said guide means for urging a recording medium toward said magnetic head as the recording medium is guided between said elongate surfaces of said guide means, whereby, said opposed surfaces of said guide means automatically self-adjust to accommodate recording media of different thicknesses as the name is advanced for read out or write in of information by said magnetic head.
Claim 2
Independent Claim
197 words
A device for guiding a manually urged recording medium, comprising: first supporting guide means having an elongate planar surface second supporting guide means having an elongate planar surface and facing said first mentioned surface a base, means associated with said base and said guide means for supporting one end of one of said guide means and the opposite end of the other of said guide means for pivotal movement relative to said base, bias means urging the free end of each of said first and second guide means toward the pivoted end of the other of said guide means, respectively, a magnetic head for reading or writing information out of or into a recording medium, said head being mounted on one of said guide means means disposed opposite the magnetic head and mounted on the other of said guide means for urging a recording medium toward said magnetic head as the recording medium is guided between said elongate surfaces of said guide means, whereby, said opposed surfaces of said guide means automatically self-adjust to accommodate recording media of different thicknesses as the name is advanced for read out or write in of information by said magnetic head.
Claim 3
Dependent Claim
26 words
A device according to claim 1, wherein said means disposed opposite the magnetic head for urging the recording medium towards the magnetic head includes a roller.
Claim 4
Dependent Claim
53 words
A device according to claim 1 or 2, wherein said means for supporting said guide means for pivotal movement include a first shaft for rotatably supporting said one end of said one of said guide means and a second shaft for rotatably supporting said opposite end of said other of said guide means.
Claim 5
Dependent Claim
48 words
A device according to claim 3 wherein opposing portions of each of said guide means are shaped to facilitate reception of the magnetic recording medium therebetween and wherein second opposing portions of each of said guide means are shaped to impede movement of the magnetic recording medium therebetween.
Claim 6
Dependent Claim
37 words
A device according to claim 4, wherein said bias means includes a spring for exerting said first bias force, and has one end fixed to one of said guide means and the other end to a roller.
Claim 7
Dependent Claim
205 words
A guiding device for a manually urged magnetic recording medium comprising: a magnetic head for writing information in a recording medium or reading information out of a recording medium, first supporting guide means for supporting said magnetic head and formed to define a first side of a guide passage for the recording medium, the passage being longer in the direction of movement of the medium than the length of the medium, bias means disposed opposite said magnetic head for biasing the recording medium toward said magnetic head with a first biasing force, second supporting guide means for supporting said bias means and formed to define a second side of the guiding passage for the recording medium: means associated with one of said guide means for limiting movement of said bias means in one direction: a base for movably supporting at least one of said guide means, and means for uniformly urging said at least one of said guide means towards the other of said guide means with a second bias force whereby, said opposed surfaces of said guide means automatically self-adjust to accommodate recording media of different thicknesses as the same is advanced for read out or write in of information by said magnetic head.
Claim 8
Dependent Claim
205 words
A guiding device for a manually urged magnetic recording medium comprising: a magnetic head for writing information in a recording medium or reading information out of a recording medium, first supporting guide means for supporting said magnetic head and formed to define a first side of a guide passage for the recording medium, the passage being longer in the direction of movement of the medium than the length of the medium, bias means disposed opposite said magnetic head for biasing the recording medium toward said magnetic head with a first biasing force, second supporting guide means for supporting said bias means and formed to define a second side of the guiding passage for the recording medium: means associated with one of said guide means for limiting movement of said bias means in one direction: a base for movably supporting at least one of said guide means, and means for uniformly urging said at least one of said guide means towards the other of said guide means with a second bias force whereby, said opposed surfaces of said guide means automatically self-adjust to accommodate recording media of different thicknesses as the same is advanced for read out or write in of information by said magnetic head.
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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) | 1984-03-30 | 1984-09-29 | 1985-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-30 | 1988-09-29 | 1989-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-30 | 1992-09-29 | 1993-03-31 | $7700.00 | Window Closed / Lapsed |