Patent US2803638A successfully refreshed from Google Patents.
Patent US4611255A successfully refreshed from Google Patents.
US4611255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotating head assembly
Assignee: Canon Inc
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Filing: 1982-07-20
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Granted: 1986-09-09
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Expires: 2002-07-20
Abstract
Abstract A rotating head assembly comprises a fixed lower drum; a rotating member which has at least one head and also has a void hole in a position corresponding to the axis of rotation; supporting means which is disposed in a position farther away from the axis of rotation than the void hole and is arranged to support the rotating member rotatably relative to the fixed lower drum; and at least one composing means which is arranged by utilizing the void hole to compose at least a portion of the rotating head assembly.
Inventors
- 👤 Tatsuzo Ushiro
- 👤 Takashi Narasawa
- 👤 Makoto Fujiki
- 👤 Hiroo Edakubo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:30
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/60; G11B15/61; G11B31/00; G11B5/00; G11B5/48; G11B5/52; G11B5/53; Y; Y10; Y10S; Y10S358/00; Y10S358/906
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
98 words
A rotating system, comprising: (a) a stationary member; (b) a rotating member continuously rotatable relative to said stationary member, said rotating member having at least one head for recording and/or reproducing information signals on and/or from a recording medium, said rotating member having an opening for passage of light therethrough; (c) supporting means for rotatably supporting said rotating member relative to said first stationary member; and (d) optical means for processing said light into recordable information signals, at least one portion of said optical means being arranged in the direction of the passage of light through the opening.
Claim 2
Dependent Claim
98 words
A rotating system, comprising: (a) a stationary member; (b) a rotating member continuously rotatable relative to said stationary member, said rotating member having at least one head for recording and/or reproducing information signals on and/or from a recording medium, said rotating member having an opening for passage of light therethrough; (c) supporting means for rotatably supporting said rotating member relative to said first stationary member; and (d) optical means for processing said light into recordable information signals, at least one portion of said optical means being arranged in the direction of the passage of light through the opening.
Claim 3
Dependent Claim
22 words
A system according to claim 1, wherein said head is arranged at a position farthest from the axis of said rotating member.
Claim 4
Dependent Claim
27 words
A system according to claim 2; wherein said stationary member includes a stationary drum, said drum having a stationary cylinder-shaped guide face for guiding a recording medium.
Claim 5
Dependent Claim
27 words
A system according to claim 3; wherein said rotating member includes a rotating drum, said drum having a stationary cylinder-shaped guide face for guiding said recording medium.
Claim 6
Dependent Claim
15 words
A system according to claim 1, wherein said optical means includes a plurality of lenses.
Claim 7
Dependent Claim
23 words
A system according to claim 5, wherein the path of the light information is in coincidence with the axis of said rotating member.
Claim 8
Dependent Claim
19 words
A system according to claim 1, further comprising: driving means arranged to drive at least partly said optical means.
Claim 9
Dependent Claim
23 words
A system according to claim 7, wherein the path of the light information is in coincidence with the axis of said rotating member.
Claim 10
Dependent Claim
22 words
A system according to claim 8, wherein at least a portion of said driving means is fixedly secured to said rotating member.
Claim 11
Dependent Claim
22 words
A system according to claim 9, wherein said optical means includes at least one lens to be driven by said driving means.
Claim 12
Dependent Claim
22 words
A system according to claim 7, wherein at least a portion of said driving means is fixedly secured to said stationary member.
Claim 13
Dependent Claim
15 words
A system according to claim 1, wherein said optical means includes an image pickup device.
Claim 14
Dependent Claim
18 words
A system according to claim 12, wherein said image pickup device is fixedly secured to said stationary member.
Claim 15
Dependent Claim
156 words
A rotating system, comprising: (a) a stationary member; (b) a rotating member continuously rotatable relative to said stationary member, said rotating member having at least one head for recording and/or reproducing information signals on and/or from a recording medium, said rotating member having an opening for passage of light therethrough; (c) supporting means for rotatably supporting said rotating member relative to said first stationary member; (d) optical means for processing light information, at least one portion of said optical means being arranged at the same position as said supporting means in the direction of the axis of rotation of said rotating member and also arranged on the inner side of said supporting means; (e) said optical means includes a plurality of lenses; (f) the path of the light information is in coincidence with the axis of said rotating member; and (g) at least one of said plurality of lenses being fixedly secured to said rotating member.
Claim 16
Dependent Claim
156 words
A rotating system, comprising: (a) a stationary member; (b) a rotating member continuously rotatable relative to said stationary member, said rotating member having at least one head for recording and/or reproducing information signals on and/or from a recording medium, said rotating member having an opening for passage of light therethrough; (c) supporting means for rotatably supporting said rotating member relative to said first stationary member; (d) optical means for processing light information, at least one portion of said optical means being arranged at the same position as said supporting means in the direction of the axis of rotation of said rotating member and also arranged on the inner side of said supporting means; (e) said optical means includes a plurality of lenses; (f) the path of the light information is in coincidence with the axis of said rotating member; and (g) at least one of said plurality of lenses being fixedly secured to said rotating member.
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) | 1989-09-08 | 1990-03-10 | 1990-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-08 | 1994-03-10 | 1994-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-08 | 1998-03-10 | 1998-09-09 | $7700.00 | Window Closed / Lapsed |