US3577078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical measuring or indicating instrument
Assignee: Agfa Gevaert AG
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Filing: 1969-04-01
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Granted: 1971-05-04
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Expires: 1989-04-01
Abstract
Abstract A moving-coil instrument wherein the end positions of the pointer which shares oscillatory movements of the coil are determined by two elastic paper strips. The strips have inner portions which are received in slots provided therefor in a support which constitutes or includes the instrument housing, and outer portions having transversely extending edges which abut against the pointer when the latter assumes the corresponding end position. The strips are adjustable with reference to the support to facilitate calibration of the instrument and are thereupon bonded to the support.
Inventors
- 👤 Willy Kisselmann
- 👤 Fritz Rumpelein
- 👤 Paul Kopf
- 👤 Franz Landbrecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:59
CPC Classifications
G; G01; G01R; G01R5/00; G01R5/02; G01R5/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
134 words
In an electrical measuring or indicating instrument, a combination comprising a coil movable about a predetermined axis to and from at least one end position; a pointer movable with said coil; support means for said coil; and abutment means for arresting said pointer in the end position of said coil, comprising a substantially strip-shaped member having a first portion mounted in said support means and a second portion extending into the path of movement of said pointer, said second portion of said member being elastically deformable substantially transversely of the longitudinal direction of said member, at least said second portion of said member consisting of paper which is at least substantially free of fibers to reduce the likelihood of clinging of the pointer to said second portion in the end position of said coil.
Claim 2
Dependent Claim
134 words
In an electrical measuring or indicating instrument, a combination comprising a coil movable about a predetermined axis to and from at least one end position; a pointer movable with said coil; support means for said coil; and abutment means for arresting said pointer in the end position of said coil, comprising a substantially strip-shaped member having a first portion mounted in said support means and a second portion extending into the path of movement of said pointer, said second portion of said member being elastically deformable substantially transversely of the longitudinal direction of said member, at least said second portion of said member consisting of paper which is at least substantially free of fibers to reduce the likelihood of clinging of the pointer to said second portion in the end position of said coil.
Claim 3
Dependent Claim
22 words
A combination as defined in claim 1, wherein said support means defines a recess for said first portion of said strip-shaped member.
Claim 4
Dependent Claim
36 words
A combination as defined in claim 2, wherein said recess is a slot and said support means comprises a housing flanking one side of said slot and a magnet flanking the other side of said slot.
Claim 5
Dependent Claim
36 words
A combination as defined in claim 2, wherein said support means comprises a housing having a pair of projections and clamping means located between said projections and defining therewith a curved slot which constitutes said recess.
Claim 6
Dependent Claim
27 words
A combination as defined in claim 2, wherein said support means comprises a housing having an extension which is provided with an elongated slot constituting said recess.
Claim 7
Dependent Claim
32 words
A combination as defined in claim 1, wherein said strip-shaped member is adjustable with reference to said support means to facilitate selection of said end position for said coil and said pointer.
Claim 8
Dependent Claim
21 words
A combination as defined in claim 1, wherein said first portion of said strip-shaped member is bonded to said support means.
Claim 9
Dependent Claim
33 words
A combination as defined in claim 1, wherein said second portion of said strip-shaped member has a substantially transversely extending edge which abuts against said pointer in the end position of said coil.
Claim 10
Dependent Claim
47 words
A combination as defined in claim 8, wherein said second portion has an end face adjacent to said edge and said pointer has a side surface which abuts against said edge and makes with said end face an acute angle in the end position of said coil.
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) | 1974-05-03 | 1974-11-02 | 1975-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-03 | 1978-11-02 | 1979-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-03 | 1982-11-02 | 1983-05-04 | $7700.00 | Window Closed / Lapsed |