US3722812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature control device
Assignee: WARD AND SON Inc
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Filing: 1970-10-12
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Granted: 1973-03-27
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Expires: 1990-10-12
Abstract
Abstract A temperature control device for regulating two primary energy sources simultaneously is disclosed. A single rotatable shaft provides the primary adjustment of a valve for regulating gas flow and the primary adjustment of the main contacts for an electric supply regulator, whereby the two regulators may be adjusted to a desired temperature setting. Secondary adjustment and operation of the device is by means of a temperature sensitive capillary tube which operates in response to a parameter to be controlled to expand or contract a bellows. The movable diaphragm of the bellows is connected by way of a second shaft to position both the gas valve and the electric contacts in accordance with the measured value.
Inventors
- 👤 H Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:36
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0227; H05B1/023; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/206
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
189 words
A dual regulator controller for regulating two separate energy sources in response to variations in a detected parameter, comprising: a first regulator comprising a gas control valve; a second regulator comprising electrical contact means; a single manually adjustable control shaft connected to both said control valve and said electrical contact means for simultaneously setting said first and second regulators to establish a desired operating condition; a regulator shaft responsive to said detected parameter; means connecting said regulator shaft to both said control valve and said electrical contact means for simultaneously and continuously operating said first and second regulators in a direction to adjust said detected parameter toward the established operating condition, said means for connecting said regulator shaft to said control valve including a first lever arm connected at one end to said control valve, at the other end to said regulator shaft, and being pivotally connected to said control shaft, the relative positions of said regulator shaft and said control shaft determining whether said control valve is open or closed, whereby said regulators cooperate to control said energy sources to maintain said parameter at said desired operating condition.
Claim 2
Dependent Claim
189 words
A dual regulator controller for regulating two separate energy sources in response to variations in a detected parameter, comprising: a first regulator comprising a gas control valve; a second regulator comprising electrical contact means; a single manually adjustable control shaft connected to both said control valve and said electrical contact means for simultaneously setting said first and second regulators to establish a desired operating condition; a regulator shaft responsive to said detected parameter; means connecting said regulator shaft to both said control valve and said electrical contact means for simultaneously and continuously operating said first and second regulators in a direction to adjust said detected parameter toward the established operating condition, said means for connecting said regulator shaft to said control valve including a first lever arm connected at one end to said control valve, at the other end to said regulator shaft, and being pivotally connected to said control shaft, the relative positions of said regulator shaft and said control shaft determining whether said control valve is open or closed, whereby said regulators cooperate to control said energy sources to maintain said parameter at said desired operating condition.
Claim 3
Dependent Claim
54 words
The dual regulator of claim 1, wherein the pivotal connection between said lever arm and said control shaft comprises a reduced area portion on said control shaft, a corresponding aperture in said lever arm through which said contrOl shaft passes, and a support arm at said reduced area portion for holding said lever arm.
Claim 4
Dependent Claim
56 words
The dual regulator of claim 2, wherein said control shaft carries a calibrating screw for said control valve, said support arm resting on one end of said calibrating screw, a second support arm cooperating with said first-named arm to hold said lever arm and biasing means for holding said support arms in position on said screw.
Claim 5
Dependent Claim
49 words
The dual regulator of claim 3, wherein said calibrating screw is coaxial with said control shaft, said control shaft having a cutaway portion adapted to receive said support arm and the tip end of said calibrating screw, whereby said control shaft may be rotated with respect to said lever.
Claim 6
Dependent Claim
179 words
A dual regulator controller for regulating two separate energy sources in response to variations in a detected parameter, comprising: a first regulator comprising a gas control valve; a second regulator comprising electrical contact means having a main lever arm and a secondary lever arm, each said lever arm carrying an electrical contact; a single manually adjustable control shaft connected to both said control valve and to the main lever arm of said electrical contact means for simultaneously setting said first and second regulators to establish a desired operating condition; a regulator shaft responsive to said detected parameter; means connecting said regulator shaft to said control valve and to said secondary lever arm of said electrical contact means for simultaneously and continuously operating said first and second regulators in a direction to adjust said detected parameter toward the established operating condition, the relative positions of said regulator shaft and said control shaft determining whether said electrical contact means is open or closed, whereby said regulators cooperate to control said energy sources to maintain said parameter at said desired operating condition.
Claim 7
Dependent Claim
179 words
A dual regulator controller for regulating two separate energy sources in response to variations in a detected parameter, comprising: a first regulator comprising a gas control valve; a second regulator comprising electrical contact means having a main lever arm and a secondary lever arm, each said lever arm carrying an electrical contact; a single manually adjustable control shaft connected to both said control valve and to the main lever arm of said electrical contact means for simultaneously setting said first and second regulators to establish a desired operating condition; a regulator shaft responsive to said detected parameter; means connecting said regulator shaft to said control valve and to said secondary lever arm of said electrical contact means for simultaneously and continuously operating said first and second regulators in a direction to adjust said detected parameter toward the established operating condition, the relative positions of said regulator shaft and said control shaft determining whether said electrical contact means is open or closed, whereby said regulators cooperate to control said energy sources to maintain said parameter at said desired operating condition.
Claim 8
Dependent Claim
33 words
The dual regulator of claim 5, wherein said secondary lever arm is pivotally mounted and spring biased for snap action, said electrical contact means further including calibration means for said secondary lever arm.
Claim 9
Dependent Claim
56 words
The dual regulator of claim 6, wherein said connection between said main lever arm and said control shaft comprises a reduced tip portion on the end of said control shaft and a recess in said main lever adapted to receive said reduced tip portion, said main lever being biased against the end of said control shaft.
Claim 10
Dependent Claim
59 words
The dual regulator of claim 5, further including a control valve lever arm connected at one end to said control valve and at the other end to said regulator shaft, and being pivotally connected to said control shaft, whereby the relative positions of said regulator shaft and said control shaft determine whether said control valve is open or closed.
Claim 11
Dependent Claim
60 words
The dual regulator of claim 8, wherein the pivotal connection between said control valve lever arm and said control shaft comprises a reduced area portion on said control shaft, a corresponding aperture in said control valve lever arm through which said control shaft passes, and a support arm at said reduced area portion for holding said control valve lever arm.
Claim 12
Dependent Claim
61 words
The dual regulator of claim 9, wherein said control shaft carries a calibrating screw for said control valve lever arm, said support arm resting on one end of said calibrating screw, a second support arm cooperating with said first-named support arm to hold said control valve lever arm, and biasing means for holding said support arms in position on said screw.
Claim 13
Dependent Claim
34 words
The dual regulator of claim 9, wherein said control shaft is mounted for rotation and consequent longitudinal motion for simultaneously setting the positions of said control valve lever arm and said main lever arm.
Claim 14
Dependent Claim
39 words
The dual regulator of claim 11, further including first and second housings for said control valve and said electrical contact means, respectively, said first housing defining a gas line passageway openable and closAble by said gas line control valve.
Claim 15
Dependent Claim
54 words
The dual regulator of claim 12, wherein said control shaft is mounted in said first housing and extends therethrough into said second housing, and said regulator shaft is mounted in said second housing for longitudinal motion in response to said detected parameter, said regulator shaft extending through said second housing into said first housing.
Claim 16
Dependent Claim
55 words
The dual regulator of claim 13, wherein said detected parameter is temperature, said first and second regulators cooperating in response to variations from a set temperature level to open and close said control valve and said electrical contact means in order to regulate said separate energy sources to return said temperature to said set level.
Claim 17
Dependent Claim
48 words
The dual regulator of claim 14, further including cam means mounted on said first housing adjacent said control shaft, and cam follower means carried by said control shaft, said cam acting on said cam follower to produce longitudinal motion in said control shaft upon rotation of said shaft.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |