US3639836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moving-coil assembly for electrical measuring instruments
Assignee: Agfa Gevaert AG
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Filing: 1969-06-04
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Granted: 1972-02-01
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Expires: 1989-06-04
Abstract
Abstract The moving-coil assembly of a moving-coil electrical measuring instrument comprises two coaxial staffs extending into recesses provided in two stationary bearings and mounted on elastic sections of plastic carriers which are secured to the coilsupporting frame. The extent of flexing of the elastic sections is limited by stops provided on the carriers in such a way that the tips of staffs cannot leave their recesses when the sections are flexed in response to shocks and that the sections cannot contact the outermost windings of the coil which is convoluted around the frame.
Inventors
- 👤 Willy Kisselmann
- 👤 Fritz Rumpelein
- 👤 Paul Kopf
- 👤 Franz Landbrecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:20
CPC Classifications
G; G01; G01R; G01R5/00; G01R5/02; G01R5/04
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
134 words
In an instrument of the character indicated, a combination comprising a pair of spaced coaxial bearings having recesses facing each other; and a moving-coil assembly including a coilsupporting frame, a pair of carriers movable with said frame and each adjacent to one of said bearings, a pair of pivot members supported by said carriers and having portions extending into the recesses of the adjacent bearings, at least one of said carriers having a first section connected with said frame and a deformable second section which is fixedly attached to and supports the respective pivot member and is movable with such pivot member with reference to said first section in a direction away from the adjacent bearing, and means for limiting the extent of movement of said second section with reference to said first section.
Claim 2
Dependent Claim
134 words
In an instrument of the character indicated, a combination comprising a pair of spaced coaxial bearings having recesses facing each other; and a moving-coil assembly including a coilsupporting frame, a pair of carriers movable with said frame and each adjacent to one of said bearings, a pair of pivot members supported by said carriers and having portions extending into the recesses of the adjacent bearings, at least one of said carriers having a first section connected with said frame and a deformable second section which is fixedly attached to and supports the respective pivot member and is movable with such pivot member with reference to said first section in a direction away from the adjacent bearing, and means for limiting the extent of movement of said second section with reference to said first section.
Claim 3
Dependent Claim
42 words
A combination as defined in claim 1, wherein said means for limiting comprises abutment means arranged to share the movements of said second section and stop means provided on said one carrier adjacent to the path of movement of said abutment means.
Claim 4
Dependent Claim
36 words
A combination as defined in claim 1, wherein said means for limiting is arranged to confine said second section to a movement whose extent is less than the depth of the recess in the adjoining bearing.
Claim 5
Dependent Claim
58 words
A combination as defined in claim 1, wherein the coil supported by said frame includes windings adjacent to but spaced from said second section, said means for limiting being arranged to confine said second section to a movement which is less than the distance between said second section and said windings in undeformed condition of said second section.
Claim 6
Dependent Claim
150 words
In an instrument of the character indicated, a combination comprising a pair of spaced coaxial bearings having recesses facing each other; and a moving-coil assembly including a coil-supporting frame, a pair of carriers movable with said frame and each adjacent to one of said bearings, a pair of pivot members supported by said carriers and having portions extending into the recesses of the adjacent bearings, at least one of said carriers having an elastically deformable section which supports the respective pivot member and is movable therewith in a direction away from the adjacent bearing, and means for limiting the extent of such movement of said section, said means for limiting comprising abutment means arranged to share the movements of said section and stop means provided on said one carrier adjacent to the path of movEment of said abutment means, said abutment means constituting an integral part of said one carrier.
Claim 7
Dependent Claim
150 words
In an instrument of the character indicated, a combination comprising a pair of spaced coaxial bearings having recesses facing each other; and a moving-coil assembly including a coil-supporting frame, a pair of carriers movable with said frame and each adjacent to one of said bearings, a pair of pivot members supported by said carriers and having portions extending into the recesses of the adjacent bearings, at least one of said carriers having an elastically deformable section which supports the respective pivot member and is movable therewith in a direction away from the adjacent bearing, and means for limiting the extent of such movement of said section, said means for limiting comprising abutment means arranged to share the movements of said section and stop means provided on said one carrier adjacent to the path of movEment of said abutment means, said abutment means constituting an integral part of said one carrier.
Claim 8
Dependent Claim
159 words
In an instrument of the character indicated, a combination comprising a pair of spaced coaxial bearings having recesses facing each other; and a moving-coil assembly including a coil-supporting frame, a pair of carriers movable with said frame and each adjacent to one of said bearings, a pair of pivot members supported by said carriers and having portions extending into the recesses of the adjacent bearings, at least one of said carriers having an elastically deformable section including a sleeve rigid with the respective pivot member, said section being movable with the respective pivot member in a direction away from the adjacent bearing, and means for limiting the extent of such movement of said section, said means for limiting comprising abutment means arranged to share the movements of said section and stop means provided on said one carrier adjacent to the path of movement of said abutment means, said abutment means comprising at least one abutment provided on said sleeve.
Claim 9
Dependent Claim
159 words
In an instrument of the character indicated, a combination comprising a pair of spaced coaxial bearings having recesses facing each other; and a moving-coil assembly including a coil-supporting frame, a pair of carriers movable with said frame and each adjacent to one of said bearings, a pair of pivot members supported by said carriers and having portions extending into the recesses of the adjacent bearings, at least one of said carriers having an elastically deformable section including a sleeve rigid with the respective pivot member, said section being movable with the respective pivot member in a direction away from the adjacent bearing, and means for limiting the extent of such movement of said section, said means for limiting comprising abutment means arranged to share the movements of said section and stop means provided on said one carrier adjacent to the path of movement of said abutment means, said abutment means comprising at least one abutment provided on said sleeve.
Claim 10
Dependent Claim
30 words
A combination as defined in claim 6, wherein said abutment means comprises two abutments located diametrically opposite each other and extending substantially radially outwardly from the axis of said sleeve.
Claim 11
Dependent Claim
143 words
In an instrument of the character indicated, a combination comprising a pair of spaced coaxial bearings having recesses facing each other; and a moving-coil assembly including a coil-supporting frame, a pair of carriers movable with said frame and each adjacent to one of said bearings, a pair of pivot members supported by said carriers and having portions extending into the recesses of the adjacent bearings, at least one of said carriers having an elastically deformable section which supports the respective pivot member and is movable therewith in a direction away from the adjacent bearing, means for limiting the extent of such movement of said section, and holder means provided on said one carrier, said means for limiting comprising abutment means movable with said section and stop means provided on said holder means and extending into the path of movement of said abutment means.
Claim 12
Dependent Claim
143 words
In an instrument of the character indicated, a combination comprising a pair of spaced coaxial bearings having recesses facing each other; and a moving-coil assembly including a coil-supporting frame, a pair of carriers movable with said frame and each adjacent to one of said bearings, a pair of pivot members supported by said carriers and having portions extending into the recesses of the adjacent bearings, at least one of said carriers having an elastically deformable section which supports the respective pivot member and is movable therewith in a direction away from the adjacent bearing, means for limiting the extent of such movement of said section, and holder means provided on said one carrier, said means for limiting comprising abutment means movable with said section and stop means provided on said holder means and extending into the path of movement of said abutment means.
Claim 13
Dependent Claim
15 words
A combination as defined in claim 8, wherein said holder means comprises a metallic plate.
Claim 14
Dependent Claim
71 words
A combination as defined in claim 8, wherein said holder means is provided with an opening in the region of said section, said abutment means comprising a plurality of discrete abutments rigid with said section and said stop means comprising a plurality of discrete stops integral with said holder means, said stops being adjacent to said opening and each thereof extending into the path of movement of one of said abutments.
References Cited (Backward Citations)
US1792385A
Cited
CH467453A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |