US3693448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indicating device for engines
Assignee: Lee Myles Corp
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Filing: 1970-10-12
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Granted: 1972-09-26
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Expires: 1990-10-12
Abstract
Abstract An oil temperature indicating device which comprises an oil temperature indicating means adapted to undergo a detectable physical change when subjected to an oil operating temperature at or above a pre-determined temperature, and a mounting means therefor adapted to dispose said oil temperature indicating means within a mass of oil under operating conditions, whereby operation of the oil at or above the pre-determined temperature can be detected by a change caused thereby in the oil temperature indicating means.
Inventors
- 👤 Harry Seltzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:04
CPC Classifications
G; G01; G01K; G01K11/00; G01K11/06; G01K11/08
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
104 words
An oil temperature sensing device comprising a dipstick adapted to be inserted into the oil in an engine and having at its dipped end indicia for indicating whether or not additional oil should be added, an opening in said dipstick positioned between the dipped end of the dipstick and the indicia indicating that oil should be added, and a temperature sensing means having a melting point below a predetermined temperature mounted in said opening in said dipstick and adapted to melt at or above said predetermined temperature to reopen said opening and provide an indication that said predetermined temperature has been reached or exceeded.
Claim 2
Dependent Claim
104 words
An oil temperature sensing device comprising a dipstick adapted to be inserted into the oil in an engine and having at its dipped end indicia for indicating whether or not additional oil should be added, an opening in said dipstick positioned between the dipped end of the dipstick and the indicia indicating that oil should be added, and a temperature sensing means having a melting point below a predetermined temperature mounted in said opening in said dipstick and adapted to melt at or above said predetermined temperature to reopen said opening and provide an indication that said predetermined temperature has been reached or exceeded.
Claim 3
Dependent Claim
148 words
A temperature sensing device for sensing the temperature of a fluid mass comprising a mounting means adapted to be inserted into the fluid mass whose temperature is to be sensed, an opening in said mounting means, and a temperature sensing means positioned in said opening and adapted to melt when subject to a temperature at or above a predetermined temperature, the melting providing a positive indication that the predetermined temperature has been reached or exceeded, said temperature sensing means comprising a body adapted to be inserted into said opening and a head affixed to one end of said body, said mounting means having an indicia near that end of the mounting means which is inserted into the fluid which indicates that more fluid should be added, and said opening in which said temperature sensing means is positioned is between said indicia and said end of the mounting means.
Claim 4
Dependent Claim
148 words
A temperature sensing device for sensing the temperature of a fluid mass comprising a mounting means adapted to be inserted into the fluid mass whose temperature is to be sensed, an opening in said mounting means, and a temperature sensing means positioned in said opening and adapted to melt when subject to a temperature at or above a predetermined temperature, the melting providing a positive indication that the predetermined temperature has been reached or exceeded, said temperature sensing means comprising a body adapted to be inserted into said opening and a head affixed to one end of said body, said mounting means having an indicia near that end of the mounting means which is inserted into the fluid which indicates that more fluid should be added, and said opening in which said temperature sensing means is positioned is between said indicia and said end of the mounting means.
Claim 5
Dependent Claim
121 words
A fluid temperature sensing device comprising an elongated member having one end adapted to be inserted into the fluid in an internal combustion engine, receiving means on said member having at least one open end and positioned to contact said fluid when said member is inserted into the fluid for receiving temperature sensing means therein, and meltable temperature sensing means having a melting point substantially at a predetermined temperature in said receiving means and positioned to be in direct engagement with said fluid when said member is inserted into said fluid, said sensing means melting at said predetermined temperature to flow out of said open end of said receiving means to indicate that said predetermined temperature has been reached or exceeded.
Claim 6
Dependent Claim
121 words
A fluid temperature sensing device comprising an elongated member having one end adapted to be inserted into the fluid in an internal combustion engine, receiving means on said member having at least one open end and positioned to contact said fluid when said member is inserted into the fluid for receiving temperature sensing means therein, and meltable temperature sensing means having a melting point substantially at a predetermined temperature in said receiving means and positioned to be in direct engagement with said fluid when said member is inserted into said fluid, said sensing means melting at said predetermined temperature to flow out of said open end of said receiving means to indicate that said predetermined temperature has been reached or exceeded.
References Cited (Backward Citations)
GB506550A
Cited
US3054378A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |