US3833792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic temperature regulating device for use with apparatuses for heat treatment of synthetic yarn
Assignee: Individual
•
Filing: 1973-08-23
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Granted: 1974-09-03
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Expires: 1993-08-23
Abstract
Abstract A plurality of pressure-sensing bellows are communicated with a plurality of heating vessels, respectively, through thin tubes, and a plurality of counter bellows are coupled to said respective pressure-sensing bellows in an opposed relationship thereto. Each of said pressure-sensing bellows is provided with a lever for actuating a micro-switch. Said plurality of counter bellows are communicated with a common constant-pressure chamber, so that the pressures in said plurality of counter bellows may be regulated as a whole by varying the pressure in said common constantpressure chamber. In accordance with the variation of the pressures in said plurality of counter bellows, the temperatures of the heating vessels are regulated as a whole.
Inventors
- 👤 N Kodaira
- 👤 M Kusunose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:42
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/20; G05D16/2006; G05D16/2066; G05D23/00; G05D23/19; G05D23/275
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
165 words
In an automatic temperature regulating apparatus for heat treatment of synthetic fibrous yarn including a plurality of heat treatment means, each means including a heating vessel (1) having a chamber; a frame; a pressure sensing bellows (6) suspended within the frame and responsive to vapor pressure in said vessel; a tube (5) interconnecting said chamber and bellows; a lever (7) fulcrumed on said frame connected to and moved by said pressure sensing bellows; biasing means (9) connected to said lever; an electric heater (3) emersed within the fluid in said vessel, including an electrical circuit to a power source; a micro-switch (11) in said circuit mounted on said frame and engagable by said lever; a counter-bellows (15) coupled respectively to each pressure sensing bellows, and anchored within said frame; a common pressure chamber (17) in communication with each of said counter-bellows, the pressure of said pressure chamber being desirably regulated with pressure variations therein, wherein the temperatures in said heat treating vessels are uniformly adjusted.
Claim 2
Dependent Claim
165 words
In an automatic temperature regulating apparatus for heat treatment of synthetic fibrous yarn including a plurality of heat treatment means, each means including a heating vessel (1) having a chamber; a frame; a pressure sensing bellows (6) suspended within the frame and responsive to vapor pressure in said vessel; a tube (5) interconnecting said chamber and bellows; a lever (7) fulcrumed on said frame connected to and moved by said pressure sensing bellows; biasing means (9) connected to said lever; an electric heater (3) emersed within the fluid in said vessel, including an electrical circuit to a power source; a micro-switch (11) in said circuit mounted on said frame and engagable by said lever; a counter-bellows (15) coupled respectively to each pressure sensing bellows, and anchored within said frame; a common pressure chamber (17) in communication with each of said counter-bellows, the pressure of said pressure chamber being desirably regulated with pressure variations therein, wherein the temperatures in said heat treating vessels are uniformly adjusted.
Claim 3
Dependent Claim
14 words
In the temperature regulating apparatus of claim 1, said biasing means being a spring.
Claim 4
Dependent Claim
25 words
In the automatic temperature regulating apparatus of claim 1, said biasing means being a vacuum bellows anchored in said frame and connected to said lever.
Claim 5
Dependent Claim
179 words
In an automatic temperature regulating apparatus for heat treatment of synthetic fibrous yarn including a plurality of heat treatment means, each means including a heating vessel (1) having a chamber; a frame (12); a pressure sensing bellows (6) suspended within the frame and responsive to vapor pressure in said vessel; a tube (5) interconnecting said chamber and bellows; a vacuum bellows (27) arranged in opposed relation and connected to said pressure sensitive bellows respectively, and anchored within said frame; a lever (7) fulcrumed on said frame and connected to and moved by said pressure sensing bellows; an electric heater (3) emersed within the fluid in said vessel, including and electrical circuit (13) to a power source; a micro-switch (11) in said circuit mounted on said frame and connected to said lever; a counter-bellows connected to each lever, outwardly of said vacuum bellows; a common pressure chamber (17) in communication with each of said counter-bellows, the pressure of said pressure chamber being desirably regulated and with pressure variations therein, whereby the temperatures in said heat treating vessels are uniformly adjusted.
Claim 6
Dependent Claim
179 words
In an automatic temperature regulating apparatus for heat treatment of synthetic fibrous yarn including a plurality of heat treatment means, each means including a heating vessel (1) having a chamber; a frame (12); a pressure sensing bellows (6) suspended within the frame and responsive to vapor pressure in said vessel; a tube (5) interconnecting said chamber and bellows; a vacuum bellows (27) arranged in opposed relation and connected to said pressure sensitive bellows respectively, and anchored within said frame; a lever (7) fulcrumed on said frame and connected to and moved by said pressure sensing bellows; an electric heater (3) emersed within the fluid in said vessel, including and electrical circuit (13) to a power source; a micro-switch (11) in said circuit mounted on said frame and connected to said lever; a counter-bellows connected to each lever, outwardly of said vacuum bellows; a common pressure chamber (17) in communication with each of said counter-bellows, the pressure of said pressure chamber being desirably regulated and with pressure variations therein, whereby the temperatures in said heat treating vessels are uniformly adjusted.
Claim 7
Dependent Claim
101 words
In the temperature regulating apparatus of claim 1, the means for regulating pressure in the pressure chamber including an intake pipe (18) connected to said pressure chamber and to a source of compressed air (20); an air outlet nozzle (21) connected to said pressure chamber; a frame (24); a spring biased lever (23-25) pivoted on said frame; a bellows (22) in communication with said pressure chamber and connected to said latter lever; a flapper valve on said latter lever in registry with said nozzle to variably regulate the flow of air therethrough, in turn, regulating the pressure within said pressure chamber.
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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) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |