Patent US3810065A successfully refreshed from Google Patents.
US3810065A
Expired / Lapsed
US
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Method and apparatus for heat detection and control
Assignee: Standard Motor Products Inc
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Filing: 1972-10-18
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Granted: 1974-05-07
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Expires: 1992-10-18
Abstract
Abstract A capillary protector is disclosed in which contained material, vaporizable at a temperature of interest, is maintained in exclusively liquid state when the protector is at a temperature below such preselected temperature. Methods for using such capillary protector and heating apparatus incorporating the same are also disclosed.
Inventors
- 👤 J Welsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:39
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/32; H01H37/36; H01H37/40
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
194 words
Apparatus for use in detecting the occurrence of a preselected temperature in an elongate path comprising: a. a hollow heat-conductive tube having a closed end and an open end and filled with material in exclusively liquid state, said material vaporizing at said preselected temperature; b. a closure member for said open tube end, said closure member having a resilient portion in engagement with said material, said closure member resilient portion being supported for deformation outwardly of said tube upon partial vaporization of said material, said closure member applying pressure to said material of a magnitude sufficient for maintaining said material in exclusively liquid state when said tube is at a temperature below said preselected temperature, said closure member resilient portion being further supported for deformation inwardly of said tube upon leakage of said material from said tube; and c. switch means having an actuator in operative engagement with said closure member resilient portion, a pair of normallyengaged contacts, and spring means connecting said actuator to at least one of said contacts, said actuator disengaging said contacts upon each occurrence of predetermined deformations of said closure member resilient portion outwardly and inwardly of said tube.
Claim 2
Dependent Claim
194 words
Apparatus for use in detecting the occurrence of a preselected temperature in an elongate path comprising: a. a hollow heat-conductive tube having a closed end and an open end and filled with material in exclusively liquid state, said material vaporizing at said preselected temperature; b. a closure member for said open tube end, said closure member having a resilient portion in engagement with said material, said closure member resilient portion being supported for deformation outwardly of said tube upon partial vaporization of said material, said closure member applying pressure to said material of a magnitude sufficient for maintaining said material in exclusively liquid state when said tube is at a temperature below said preselected temperature, said closure member resilient portion being further supported for deformation inwardly of said tube upon leakage of said material from said tube; and c. switch means having an actuator in operative engagement with said closure member resilient portion, a pair of normallyengaged contacts, and spring means connecting said actuator to at least one of said contacts, said actuator disengaging said contacts upon each occurrence of predetermined deformations of said closure member resilient portion outwardly and inwardly of said tube.
Claim 3
Dependent Claim
35 words
The apparatus claimed in claim 1 wherein said switch means provides for snap action disengagement of said contacts on each occurrence of said predetermined deformations of said closure member resilient portion outwardly of said tube.
Claim 4
Dependent Claim
46 words
The apparatus claimed in claim 1 further including a housing supporting said switch means, said closure member comprising a diaphragm having a marginal expanse in abutting relation with said housing, the expanse of said diaphragm interiorly of said marginal expanse constituting said closure member resilient portion.
Claim 5
Dependent Claim
162 words
Apparatus for use in detecting the occurrence of a preselected temperature in an elongate path comprising: a. a hollow heat-conductive tube having a closed end and an open end and filled with material in exclusively liquid state, said material vaporizing at said preselected temperature; b. a closure member for said open tube end, said closure member having a resilient portion in engagement with said material, said closure member resilient portion being supported for deformation outwardly of said tube upon partial vaporization of said material, said closure member applying pressure to said material of a magnitude sufficient for maintaining said material is exclusively liquid state when said tube is at a temperature below said preselected temperature; c. switch means having an actuator in operative engagement with said closure member resilient portion; d. an electric heater having a passage therein defining said elongate path and containing said tube, said heater including a heat-generating conductor; and e. means connecting said conductor to said switch means.
Claim 6
Dependent Claim
162 words
Apparatus for use in detecting the occurrence of a preselected temperature in an elongate path comprising: a. a hollow heat-conductive tube having a closed end and an open end and filled with material in exclusively liquid state, said material vaporizing at said preselected temperature; b. a closure member for said open tube end, said closure member having a resilient portion in engagement with said material, said closure member resilient portion being supported for deformation outwardly of said tube upon partial vaporization of said material, said closure member applying pressure to said material of a magnitude sufficient for maintaining said material is exclusively liquid state when said tube is at a temperature below said preselected temperature; c. switch means having an actuator in operative engagement with said closure member resilient portion; d. an electric heater having a passage therein defining said elongate path and containing said tube, said heater including a heat-generating conductor; and e. means connecting said conductor to said switch means.
Claim 7
Dependent Claim
34 words
The apparatus claimed in claim 4 wherein said heater further comprises a base containing said passage, electrically insulative means enclosing said conductor and heat-conductive means secured to said base and enclosing said insulative means.
Claim 8
Dependent Claim
55 words
The apparatus claimed in claim 5 wherein said conductor, said insulative means and said heat-conductive means are of like length substantially greater than the length of said base, and together comprise a convoluted assembly having a length equal to that of said base, longitudinally spaced parts of said heat-conductive means being secured to said base.
Claim 9
Dependent Claim
23 words
The apparatus claimed in claim 4 wherein said electric heater includes a heat-insulative member partially encircling said tube and disposed in said passage.
Claim 10
Dependent Claim
23 words
The apparatus claimed in claim 4 wherein said electric heater includes a noise-absorbent member partially encircling said tube and disposed in said passage.
Claim 11
Dependent Claim
24 words
The apparatus claimed in claim 4 wherein said electric heater includes a heat-insulative noise-absorbent member partially encircling said tube and disposed in said passage.
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) | 1977-05-06 | 1977-11-05 | 1978-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-06 | 1981-11-05 | 1982-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-06 | 1985-11-05 | 1986-05-07 | $7700.00 | Window Closed / Lapsed |