Patent US2348515A successfully refreshed from Google Patents.
US3676827A
Expired / Lapsed
US
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Control mechanism for adjustable electrical device including indicating means
Assignee: Alps Alpine Co Ltd
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Filing: 1971-11-24
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Granted: 1972-07-11
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Expires: 1991-11-24
Abstract
Abstract A control means for adjusting an electrical device having an adjustable parameter is provided in a simple, inexpensive and compact design. In the disclosed embodiment, the electrical device is a variable impedance device of the type having an electrical contact linearly movable within an elongated housing. The contact is carried by a slide which in turn is controlled by a rotatable control member operatively drivingly connected to the housing frame and having a control wheel extending through an elongated slot in the housing. The control member is provided with an axially located aperture receiving one end of an indicating pointer, that pointer having a portion of reduced cross section extending through a second longitudinal slot in the housing. The pointer is retained in its operative position within the aperture of the rotatable control member by the engagement of a shoulder thereon with the inner surface of the housing wall and is movable linearly along the housing with the slider and contact. A scale means is adapted to cooperate with the pointer to provide accurate readout of the adjusted impedance value. In a preferred embodiment, that scale means is in the form of a transparent window opening in an outer casing generally in registration with the path of the pointer along the housing.
Inventors
- 👤 Yukihiko Nomura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:54
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/30; H01C10/38; H01C10/40
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
106 words
In a control means for adjusting the value of an electrical device comprising an elongated frame, slide means slidably mounted on said frame, and a rotatable control member operatively connected to said slide means and movable therewith, said control member being manually rotatably adjustable, and when so adjusted being effective to move said slide means longitudinally along said frame, the improvement comprising scale means on said frame and indicating means mounted axially on said control member and extending laterally therefrom for movement therewith, whereby the movement of said indicating means along said scale means provides an indication of the change of value of said electrical means.
Claim 2
Dependent Claim
106 words
In a control means for adjusting the value of an electrical device comprising an elongated frame, slide means slidably mounted on said frame, and a rotatable control member operatively connected to said slide means and movable therewith, said control member being manually rotatably adjustable, and when so adjusted being effective to move said slide means longitudinally along said frame, the improvement comprising scale means on said frame and indicating means mounted axially on said control member and extending laterally therefrom for movement therewith, whereby the movement of said indicating means along said scale means provides an indication of the change of value of said electrical means.
Claim 3
Dependent Claim
39 words
The control means of claim 1, further comprising rotatable drive means operatively drivingly connecting said control member to said frame and effective to move said control member longitudinally along said frame in response to rotation of said control member.
Claim 4
Dependent Claim
35 words
The control means of claim 2, further comprising rack means on said frame and wherein said drive means comprises gear means fast with said control member and operatively engaging said rack means on said frame.
Claim 5
Dependent Claim
38 words
The control means of claim 3, wherein said frame includes a housing, an elongated slot in one wall of said housing, said control member comprising a rotatable control knob radially projecting outwardly of said housing through said slot.
Claim 6
Dependent Claim
29 words
The control means of claim 4, further comprising a second longitudinal slot in another wall of said housing, said indicating means comprising a pointer extending through said second slot.
Claim 7
Dependent Claim
36 words
The control means of claim 5, wherein said control member is provided with an axially disposed receptacle loosely receiving one end of said pointer and means retaining said one end of said pointer within said receptacle.
Claim 8
Dependent Claim
48 words
The control means of claim 6, wherein said other end of said pointer extends through said second slot outwardly of said housing wall, said retainer means comprising a portion on said pointer interior of said housing wall of wider cross section, said wider portion abutting said housing wall.
Claim 9
Dependent Claim
63 words
The control means of claim 7, wherein said housing wall is provided with an aperture communicating with said second slot, offset laterally therefrom, and adapted to receive said portion of wider cross section on said pointer, whereby said one end of said pointer may be inserted into said housing through said aperture and said pointer moved to a position extending through said slot.
Claim 10
Dependent Claim
40 words
The control means of claim 1, wherein said indicating means comprises a pointer, said control member having an axially disposed receptacle loosely receiving one end of said pointer and means retaining said one end of said pointer within said receptacle.
Claim 11
Dependent Claim
38 words
The control means of claim 9, wherein said frame includes a housing, an elongated slot in one wall of said housing, said control member comprising a rotatable control knob radially projecting outwardly of said housing through said slot.
Claim 12
Dependent Claim
59 words
The control means of claim 10, further comprising an elongated pointer slot in another wall of said housing, said other end of said pointer extending through said pointer slot outwardly of said housing wall, said retainer means comprising a portion on said pointer interior of said housing wall of wider cross section, said wider portion abutting said housing wall.
Claim 13
Dependent Claim
56 words
The control means of claim 11, wherein said housing wall is provided with an aperture communicating with said slot offset laterally therefrom and adapted to receive said portion of wider cross section on said pointer, whereby said one end of said pointer may be inserted into said housing through said aperture, and moved adjacent said slot.
Claim 14
Dependent Claim
32 words
The control means of claim 1, wherein said frame includes an outer casing, said scale means comprising a transparent elongated window portion on said outer casing in registration with said indicating means.
Claim 15
Dependent Claim
39 words
The control means of claim 13, further comprising rotatable drive means operatively drivingly connecting said control member to said frame and effective to move said control member longitudinally along said frame in response to rotation of said control member.
Claim 16
Dependent Claim
35 words
The control means of claim 14, further comprising rack means on said frame and wherein said drive means comprises gear means fast with said control member and operatively engaging said rack means on said frame.
Claim 17
Dependent Claim
40 words
The control means of claim 13, wherein said indicating means comprises a pointer, said control member having an axially disposed receptacle loosely receiving one end of said pointer and means retaining said one end of said pointer within said receptacle.
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) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |