US3633200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vertical scale indicator
Assignee: Bendix Corp
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Filing: 1969-09-02
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Granted: 1972-01-04
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Expires: 1989-09-02
Abstract
Abstract A vertical scale indicator has a scale, and a pair of mechanism assemblies positioned side-by-side with indices on flexible bands moving along opposite sides of the scale to indicate conditions. Each mechanism assembly comprises a mounting plate having thereon a follow up with a pulley, a servomotor driving the follow up and pulley in one direction, and a return spring assembly with a drum driven in the opposite direction by a spring. The flexible band is connected to the pulley and the drum and is moved in one direction by the motor and in the opposite direction by the return spring assembly.
Inventors
- 👤 Victor D Ellison
- 👤 Casimer F Remus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:16
CPC Classifications
G; G01; G01D; G01D13/00; G01D13/02; G01D13/04; G01D13/06
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
190 words
In an indicator of the kind described comprising scale means and index means movable relative to one another for indicating a condition sensed by a signal condition device, a mechanism assembly having a single mounting plate, followup means mounted on said plate for providing signals corresponding to the relative positions of the scale means and index means, a pulley mounted on the followup means, a servomotor mounted on said plate and drivably connected to operate the followup means and pulley in one direction and responsive to signals from the signal condition device and followup means, a return spring assembly mounted on said plate and having a drum driven in the opposite direction by a spring, and a flexible band having one of the scale means or index means thereon and drivably connected to the pulley and to the drum and driven in the one direction by the motor and in the opposite direction by the return spring assembly, the other of said scale means or index means being fixed relative to said mounting plate, so that the scale means and index means cooperate to indicate a value on the scale.
Claim 2
Dependent Claim
190 words
In an indicator of the kind described comprising scale means and index means movable relative to one another for indicating a condition sensed by a signal condition device, a mechanism assembly having a single mounting plate, followup means mounted on said plate for providing signals corresponding to the relative positions of the scale means and index means, a pulley mounted on the followup means, a servomotor mounted on said plate and drivably connected to operate the followup means and pulley in one direction and responsive to signals from the signal condition device and followup means, a return spring assembly mounted on said plate and having a drum driven in the opposite direction by a spring, and a flexible band having one of the scale means or index means thereon and drivably connected to the pulley and to the drum and driven in the one direction by the motor and in the opposite direction by the return spring assembly, the other of said scale means or index means being fixed relative to said mounting plate, so that the scale means and index means cooperate to indicate a value on the scale.
Claim 3
Dependent Claim
39 words
An indicator of the kind described in claim 1 in which the drum and pulley are mounted on the same side of the plate and the flexible band is secured to the drum and pulley proximate its opposite ends.
Claim 4
Dependent Claim
17 words
An indicator of the kind described in claim 1 which includes means for guiding the flexible band.
Claim 5
Dependent Claim
110 words
An indicator of the kind described in claim 1 which includes a pair of mechanism assemblies positioned side by side with said one of said scale means or index means of each of said assemblies positioned at opposite sides of the other of said scale means or index means, the motor and followup means of each mechanism assembly extending outwardly of one side of the associated plate and being arranged so that the motors and followup means of the pair of mechanism assemblies are positioned between the plates and are offset so that the plates when assembled are spaced a distance substantially equal to the width of the followup means.
Claim 6
Dependent Claim
28 words
An indicator as described in claim 1 having stop means to limit movement of the flexible band by the return spring assembly when the motor is deenergized. Pg,10
Claim 7
Dependent Claim
43 words
An indicator of the kind described in claim 5 which includes a warning flag on the flexible band which appears when the motor is deenergized and the band is moved by the return spring assembly to its limit of travel in one direction.
Claim 8
Dependent Claim
50 words
An indicator of the kind described in claim 1 which includes an amplifier having an input connected to the condition signal device and to the followup means and responsive to the signals therefrom and having an output connected to the motor for operating the motor in opposition to the spring.
Claim 9
Dependent Claim
25 words
An indicator of the kind described in claim 7 in which the motor is a two-phase motor and both phases are energized by the amplifier.
Claim 10
Dependent Claim
131 words
A mechanism assembly for an indicator of the kind described for indicating a condition sensed by a signal condition device, comprising a single mounting plate, followup means mounted on, said plate and operable for providing signals, a pulley mounted on the followup means, a servomotor mounted on said plate and drivably connected to operate the followup means and pulley in one direction in response to signals from the signal condition device and followup means, a return spring assembly mounted on said plate and having a drum driven in the opposite direction by a spring, and a flexible band for providing an indication of the condition mounted on the pulley and the drum and driven in the one direction by the motor and in the opposite direction by the return spring assembly.
Claim 11
Dependent Claim
131 words
A mechanism assembly for an indicator of the kind described for indicating a condition sensed by a signal condition device, comprising a single mounting plate, followup means mounted on, said plate and operable for providing signals, a pulley mounted on the followup means, a servomotor mounted on said plate and drivably connected to operate the followup means and pulley in one direction in response to signals from the signal condition device and followup means, a return spring assembly mounted on said plate and having a drum driven in the opposite direction by a spring, and a flexible band for providing an indication of the condition mounted on the pulley and the drum and driven in the one direction by the motor and in the opposite direction by the return spring assembly.
Claim 12
Dependent Claim
23 words
A mechanism assembly of the kind described in claim 9 in which the return spring assembly provides a constant force opposing the motor.
Claim 13
Dependent Claim
35 words
A mechanism assembly of the kind described in claim 9 in which the motor is a two-phase motor and both phases are energized by an amplifier connected to the signal condition device and followup means.
Claim 14
Dependent Claim
36 words
A mechanism assembly as described in claim 9 in which the followup is positioned on one side of the plate, and the pulley and return spring assembly are positioned on the opposite side of the plate.
Claim 15
Dependent Claim
31 words
A mechanism assembly as described in claim 12 in which the motor extends through an aperture in the plate and gearing drivably connects the motor to the pulley and followup means.
Claim 16
Dependent Claim
100 words
An indicator having scale means and index means movable relative to one another, and including a pair of mechanism assemblies as described in claim 9 positioned side by side and having said one of said scale means or index means on each flexible band of each of said assemblies positioned at opposite sides of the other of said scale means or index means, the motors and followup means of the mechanism assemblies being positioned between the plates and the motor and followup means of one mechanism assembly being offset from the motor and followup means of the other mechanism assembly.
Claim 17
Dependent Claim
24 words
An indicator as described in claim 14 in which the plates are spaced a distance substantially equal to the width of a followup means.
Claim 18
Dependent Claim
21 words
An indicator as described in claim 15 in which the plates are secured to one another substantially parallel to one another.
References Cited (Backward Citations)
US1787298A
Cited
US2744489A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-03 | 1975-07-05 | 1976-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-03 | 1979-07-05 | 1980-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-03 | 1983-07-05 | 1984-01-04 | $7700.00 | Window Closed / Lapsed |