Patent US2513258A successfully refreshed from Google Patents.
US4422064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical resistance regulator
Assignee: Canon Inc
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Filing: 1981-09-03
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Granted: 1983-12-20
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Expires: 2001-09-03
Abstract
Abstract A regulator is provided which includes a housing, a seesaw-like operating member supported by the housing, a projection provided on the operating member, two movable members rotatably supported by the housing to push back the projection in a predetermined direction, a spring secured to these movable members to bias them in opposite directions, and limit member provided on the housing to determine the approach limit amount of the two movable members, a resistor provided on the housing, and a sliding brush coupled to the operating member to slide on the resistor.
Inventors
- 👤 Susumu Fukita
- 👤 Toshio Araki
- 👤 Kenji Fujikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:52
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/30; H01C10/32; H01C10/34; H01C10/14
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
95 words
A regulator comprising: a housing; an operating member having a central portion which is rotatably supported on said housing; a projection provided on said operating member; two movable members rotatably supported on said housing to push back said projection in a predetermined direction; a spring secured to said movable members to bias them in opposite directions; a limit member provided on said housing to limit the approach limit amount of said movable members; an electrical resistor provided on said housing; and a sliding member provided on said operating member and slidable on said electrical resistor.
Claim 2
Dependent Claim
95 words
A regulator comprising: a housing; an operating member having a central portion which is rotatably supported on said housing; a projection provided on said operating member; two movable members rotatably supported on said housing to push back said projection in a predetermined direction; a spring secured to said movable members to bias them in opposite directions; a limit member provided on said housing to limit the approach limit amount of said movable members; an electrical resistor provided on said housing; and a sliding member provided on said operating member and slidable on said electrical resistor.
Claim 3
Dependent Claim
21 words
A regulator according to claim 1, wherein the diameter of said projection is equal to the diameter of said limit member.
Claim 4
Dependent Claim
25 words
A regulator according to claim 1, wherein said electrical resistor has two insulated sub-resistors and said sliding member has two sub-sliding members electrically coupled together.
Claim 5
Dependent Claim
20 words
A regulator according to claim 1, wherein said operating member and said movable members are supported by a same shaft.
Claim 6
Dependent Claim
84 words
A regulator comprising: a housing; seesaw-like operating means supported by said housing; engaging element provided on said operating means; two pressurizing members pivotably supported on said housing for pressuring said engaging means in opposite directions; resilient means for supplying pressurization force to said pressurizing members; control means for controlling the approach limit of said two pressurizing members; an electrical resistor disposed on said housing and having a sliding surface; and a sliding member disposed on said operating means and slidable on the sliding surface.
Claim 7
Dependent Claim
84 words
A regulator comprising: a housing; seesaw-like operating means supported by said housing; engaging element provided on said operating means; two pressurizing members pivotably supported on said housing for pressuring said engaging means in opposite directions; resilient means for supplying pressurization force to said pressurizing members; control means for controlling the approach limit of said two pressurizing members; an electrical resistor disposed on said housing and having a sliding surface; and a sliding member disposed on said operating means and slidable on the sliding surface.
Claim 8
Dependent Claim
30 words
A regulator according to claim 5, further comprising a conductor disposed in juxtaposition to said electrical resistor, said sliding member adapted to electrically connect said conductor with said electrical resistor.
Claim 9
Dependent Claim
28 words
A regulator according to claim 6, wherein said electrical resistor includes a central portion connected to a terminal and opposite end portions each connected to a separate terminal.
Claim 10
Dependent Claim
14 words
A regulator according to claim 5, wherein said engaging element is a pillar-like projection.
Claim 11
Dependent Claim
23 words
A regulator according to claim 5, wherein the width of said engaging element is equal to the approach limit by said control means.
Claim 12
Dependent Claim
15 words
A regulator according to claim 5, wherein said electrical resistor is fixed to said housing.
Claim 13
Dependent Claim
84 words
A regulator comprising: a housing; seesaw-like operating means supported by said housing; engaging element provided on said operating means; two pressurizing members pivotably supported on said housing for pressurizing said engaging means into opposite directions; resilient means for supplying pressurization force to said pressurizing members; control means for controlling the approach limit of said two pressurizing members; an electrical resistor disposed on said operating means and having a sliding surface; and a sliding member disposed on said housing and slidable on the sliding surface.
Claim 14
Dependent Claim
84 words
A regulator comprising: a housing; seesaw-like operating means supported by said housing; engaging element provided on said operating means; two pressurizing members pivotably supported on said housing for pressurizing said engaging means into opposite directions; resilient means for supplying pressurization force to said pressurizing members; control means for controlling the approach limit of said two pressurizing members; an electrical resistor disposed on said operating means and having a sliding surface; and a sliding member disposed on said housing and slidable on the sliding surface.
Claim 15
Dependent Claim
30 words
A regulator according to claim 11, further comprising a conductor disposed in juxtaposition to said electrical resistor, said sliding member adapted to electrically connect said conductor with said electrical resistor.
Claim 16
Dependent Claim
28 words
A regulator according to claim 12, wherein said electrical resistor includes a central portion connected to a terminal and opposite end portions each connected to a separate terminal.
Claim 17
Dependent Claim
14 words
A regulator according to claim 11, wherein said engaging element is a pillar-like projection.
Claim 18
Dependent Claim
23 words
A regulator according to claim 11, wherein the width of said engaging element is equal to the approach limit by said control means.
Claim 19
Dependent Claim
15 words
A regulator according to claim 11, wherein said electrical resistor is fixed to said housing.
References Cited (Backward Citations)
US3428887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-19 | 1987-06-20 | 1987-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-19 | 1991-06-20 | 1991-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-19 | 1995-06-20 | 1995-12-20 | $7700.00 | Window Closed / Lapsed |