US3715567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid heating assembly
Assignee: Individual
•
Filing: 1970-11-04
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Granted: 1973-02-06
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Expires: 1990-11-04
Abstract
Abstract An electric liquid heating assembly having a dome shaped upper wall and a flat bottom. A false bottom is mounted within the liquid heating assembly and defines a liquid-tight compartment. The false bottom is composed of a top wall and a lip. The top wall is spaced apart from the liquid heating assembly bottom and disposed parallel thereto and has an area substantially less than the area of the liquid heating assembly bottom. The lip depends downwardly from the top wall to the liquid heating assembly bottom. A thermo-sensitive element is mounted within the compartment and includes a resilient conductor, an insulator mounted to the conductor and a bi-metallic strip. When the temperature of the liquid within the liquid heating assembly exceeds a predetermined temperature, the bi-metallic strip contacts the insulator thereby applying a force to the conductor opposed to its bias and causing a contact, secured to the conductor, to move away from an electric terminal thereby deenergizing a heating element mounted with the liquid heating assembly.
Inventors
- 👤 R Mandziak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:30
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/32; H01H37/52; A; A47; A47J; A47J27/00; A47J27/21; A47J27/21008; A47J27/21058; A47J27/21108
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
245 words
A liquid heating assembly including: a container for liquid having a lower wall and side walls extending upwardly from the lower wall; a heating element disposed within said container and having an electric terminal at each end thereof, one said terminal adapted to be connected to one line of a source of electric current, a false bottom mounted within said container and defining a liquid-tight compartment therein within which said terminals are housed; a resilient conductor, adjustment stud and bi-metallic strip all mounted within said compartment, an electrically insulated stud interconnecting at one end said false bottom to an intermediate portion of said heating element externally of said compartment, said insulated stud extending downwardly through said liquid-tight compartment and connected at the other end to said lower wall, said resilient conductor and said bi-metallic strip both being pivotally mounted to said insulated stud, an adjustment stud threadably mounted to said resilient conductor and adapted to contact said bi-metallic strip, said resilient conductor connected to the other line of the source of electric current and having a contact adapted to make and to break electrical connection with the other electrical terminal of said heating element, said bi-metallic strip when the temperature within the compartment exceeds a pre-determined value acting on said adjustment stud thereby applying a force to said conductor opposed to its bias and causing said contact to break connection with said other electrical terminal when the temperature of the liquid exceeds a pre-determined temperature.
Claim 2
Dependent Claim
245 words
A liquid heating assembly including: a container for liquid having a lower wall and side walls extending upwardly from the lower wall; a heating element disposed within said container and having an electric terminal at each end thereof, one said terminal adapted to be connected to one line of a source of electric current, a false bottom mounted within said container and defining a liquid-tight compartment therein within which said terminals are housed; a resilient conductor, adjustment stud and bi-metallic strip all mounted within said compartment, an electrically insulated stud interconnecting at one end said false bottom to an intermediate portion of said heating element externally of said compartment, said insulated stud extending downwardly through said liquid-tight compartment and connected at the other end to said lower wall, said resilient conductor and said bi-metallic strip both being pivotally mounted to said insulated stud, an adjustment stud threadably mounted to said resilient conductor and adapted to contact said bi-metallic strip, said resilient conductor connected to the other line of the source of electric current and having a contact adapted to make and to break electrical connection with the other electrical terminal of said heating element, said bi-metallic strip when the temperature within the compartment exceeds a pre-determined value acting on said adjustment stud thereby applying a force to said conductor opposed to its bias and causing said contact to break connection with said other electrical terminal when the temperature of the liquid exceeds a pre-determined temperature.
Claim 3
Dependent Claim
245 words
A liquid heating assembly including: a container for liquid having a lower wall and side walls extending upwardly from the lower wall; a heating element disposed within said container and having an electric terminal at each end thereof, one said terminal adapted to be connected to one line of a source of electric current, a false bottom mounted within said container and defining a liquid-tight compartment therein within which said terminals are housed; a resilient conductor, adjustment stud and bi-metallic strip all mounted within said compartment, an electrically insulated stud interconnecting at one end said false bottom to an intermediate portion of said heating element externally of said compartment, said insulated stud extending downwardly through said liquid-tight compartment and connected at the other end to said lower wall, said resilient conductor and said bi-metallic strip both being pivotally mounted to said insulated stud, an adjustment stud threadably mounted to said resilient conductor and adapted to contact said bi-metallic strip, said resilient conductor connected to the other line of the source of electric current and having a contact adapted to make and to break electrical connection with the other electrical terminal of said heating element, said bi-metallic strip when the temperature within the compartment exceeds a pre-determined value acting on said adjustment stud thereby applying a force to said conductor opposed to its bias and causing said contact to break connection with said other electrical terminal when the temperature of the liquid exceeds a pre-determined temperature.
Claim 4
Dependent Claim
245 words
A liquid heating assembly including: a container for liquid having a lower wall and side walls extending upwardly from the lower wall; a heating element disposed within said container and having an electric terminal at each end thereof, one said terminal adapted to be connected to one line of a source of electric current, a false bottom mounted within said container and defining a liquid-tight compartment therein within which said terminals are housed; a resilient conductor, adjustment stud and bi-metallic strip all mounted within said compartment, an electrically insulated stud interconnecting at one end said false bottom to an intermediate portion of said heating element externally of said compartment, said insulated stud extending downwardly through said liquid-tight compartment and connected at the other end to said lower wall, said resilient conductor and said bi-metallic strip both being pivotally mounted to said insulated stud, an adjustment stud threadably mounted to said resilient conductor and adapted to contact said bi-metallic strip, said resilient conductor connected to the other line of the source of electric current and having a contact adapted to make and to break electrical connection with the other electrical terminal of said heating element, said bi-metallic strip when the temperature within the compartment exceeds a pre-determined value acting on said adjustment stud thereby applying a force to said conductor opposed to its bias and causing said contact to break connection with said other electrical terminal when the temperature of the liquid exceeds a pre-determined temperature.
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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) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |