Patent US3712262A successfully refreshed from Google Patents.
US3712262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indicating instrument with pivotable scales
Assignee: Agfa Gevaert AG
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Filing: 1970-04-10
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Granted: 1973-01-23
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Expires: 1990-04-10
Abstract
Abstract An indicating instrument wherein a flat block-shaped housing consisting of light diffusing material accommodates a moving-coil instrument having a pivotable pointer whose tip travels along an arcuate path extending lengthwise of the front side of the housing and adjacent to one flat surface of an elongated prism which is pivotable about an axis extending at right angles to and crossing in space with the pivot axis of the pointer. At least the one surface of the prism carries a straight graduated scale and another surface of the prism is mirrored to reflect the images of the scale and of the tip of the pointer toward the front side of the housing. Such images can be observed from several directions in response to appropriate pivotal movement of the prism.
Inventors
- 👤 W Kisselmann
- 👤 F Rumpelein
- 👤 P Kopf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:21
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/02; E04F21/04; G; G01; G01D; G01D13/00; G01D13/02; G01D13/04
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
192 words
An indicating instrument comprising a housing having a front side; meter means installed in said housing and including a pointer pivotable about a predetermined axis and having an end portion movable along a path adjacent to and extending lengthwise of said front side; and a light-transmitting prism mounted in said housing adjacent to said front side and to said path for pivotal movement about a second axis which crosses in space with said predetermined axis, said prism having a first surface facing said end portion of said pointer and a second surface facing away from said end portion and making an acute angle with said first surface, said surfaces meeting in the region of said second axis, and elongated substantially straight scale means provided on at least one of said surfaces and being observable, together with Said end portion of said pointer, from the front side of said housing, said scale means and said end portion of said pointer being observable from said front side of said housing at a plurality of different angles in response to pivoting of said prism about said second axis between a plurality of different angular positions.
Claim 2
Dependent Claim
192 words
An indicating instrument comprising a housing having a front side; meter means installed in said housing and including a pointer pivotable about a predetermined axis and having an end portion movable along a path adjacent to and extending lengthwise of said front side; and a light-transmitting prism mounted in said housing adjacent to said front side and to said path for pivotal movement about a second axis which crosses in space with said predetermined axis, said prism having a first surface facing said end portion of said pointer and a second surface facing away from said end portion and making an acute angle with said first surface, said surfaces meeting in the region of said second axis, and elongated substantially straight scale means provided on at least one of said surfaces and being observable, together with Said end portion of said pointer, from the front side of said housing, said scale means and said end portion of said pointer being observable from said front side of said housing at a plurality of different angles in response to pivoting of said prism about said second axis between a plurality of different angular positions.
Claim 3
Dependent Claim
41 words
An instrument as defined in claim 1, wherein said meter means comprises an electrical moving-coil instrument and wherein said surfaces of said prism meet along an edge which is parallel to said second axis and is normal to said predetermined axis.
Claim 4
Dependent Claim
23 words
An instrument as defined in claim 1, wherein said prism further comprises a convex third surface facing the front side of said housing.
Claim 5
Dependent Claim
22 words
An instrument as defined in claim 1, wherein said prism comprises a third flat surface facing the front side of said housing.
Claim 6
Dependent Claim
21 words
An instrument as defined in claim 1, wherein at least a portion of the second surface of said prism is mirrored.
Claim 7
Dependent Claim
30 words
An instrument as defined in claim 1, wherein said scale means comprises an elongated scale provided on the second surface of said prism in the region of said second axis.
Claim 8
Dependent Claim
27 words
An instrument as defined in claim 1, wherein said scale means includes a main scale on said first surface and an auxiliary scale on said second surface.
Claim 9
Dependent Claim
27 words
An instrument as defined in claim 1, wherein said scale means comprises a scale provided on said first surface and extending in parallelism with said second axis.
Claim 10
Dependent Claim
31 words
An instrument as defined in claim 8, wherein the width of said scale, as considered at right angles to said second axis, is less than the width of said first surface.
Claim 11
Dependent Claim
18 words
An instrument as defined in claim 1, further comprising means for pivoting said prism about said second axis.
Claim 12
Dependent Claim
37 words
An instrument as defined in claim 10, wherein said prism comprises an extension adjacent to the front side of said housing and said pivoting means includes actuating means for moving the prism by way of said extension.
Claim 13
Dependent Claim
22 words
An instrument as defined in claim 11, wherein said actuating means is arranged to move in substantial parallelism with said second axis.
Claim 14
Dependent Claim
244 words
An indicating instrument comprising a housing having a front side; meter means installed in said housing and including a pointer pivotable about a predetermined axis and having an end portion movable along a path adjacent to and extending lengthwise of said front side; a light-transmitting prism mounted in said housing adjacent to said front side and to said path for pivotal movement about a second axis which crosses in space with said predetermined axis, said prism having a first surface facing said end portion of said pointer and a second surface facing away from said end portion and making an acute angle with said first surface, said surfaces meeting in the region of said second axis, elongated substantially straight scale means provided on at least one of said surfaces and being observable, together with said end portion, from the front side of said housing, said prism further comprising an extension adjacent to the front side of said housing and said front side having an elongated slot extending in parallelism with said second axis; and means for pivoting said prism about said second axis, comprising actuating means for moving said prism by way of said extension, said extension having a cam face located behind said slot and said actuating means comprising a wiper extending through said slot and engaging said cam face, said wiper being movable lengthwise of said slot to thereby effect a pivotal movement of said prism by way of said cam face.
Claim 15
Dependent Claim
244 words
An indicating instrument comprising a housing having a front side; meter means installed in said housing and including a pointer pivotable about a predetermined axis and having an end portion movable along a path adjacent to and extending lengthwise of said front side; a light-transmitting prism mounted in said housing adjacent to said front side and to said path for pivotal movement about a second axis which crosses in space with said predetermined axis, said prism having a first surface facing said end portion of said pointer and a second surface facing away from said end portion and making an acute angle with said first surface, said surfaces meeting in the region of said second axis, elongated substantially straight scale means provided on at least one of said surfaces and being observable, together with said end portion, from the front side of said housing, said prism further comprising an extension adjacent to the front side of said housing and said front side having an elongated slot extending in parallelism with said second axis; and means for pivoting said prism about said second axis, comprising actuating means for moving said prism by way of said extension, said extension having a cam face located behind said slot and said actuating means comprising a wiper extending through said slot and engaging said cam face, said wiper being movable lengthwise of said slot to thereby effect a pivotal movement of said prism by way of said cam face.
Claim 16
Dependent Claim
33 words
An instrument as defined in claim 13, wherein said wiper comprises a stem extending outwardly through said slot and a knob provided on said stem adjacent to the front side of said housing.
Claim 17
Dependent Claim
22 words
An instrument as defined in claim 13, wherein said pivoting means further comprises means for biasing said cam face against said wiper.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-23 | 1976-07-24 | 1977-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-23 | 1980-07-24 | 1981-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-23 | 1984-07-24 | 1985-01-23 | $7700.00 | Window Closed / Lapsed |