Patent US4075595A successfully refreshed from Google Patents.
US4075595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature responsive electrical switch construction and method of making the same
Assignee: Emerson Electric Co
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Filing: 1976-08-23
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Granted: 1978-02-21
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Expires: 1996-08-23
Abstract
Abstract A collapsible pellet thermal limiter construction having an electrical switching unit that changes its condition when the pellet melts by being heated to a certain temperature for the particular pellet and having an epoxy material sealing one end of the casing of the construction. A filler material is disposed in the epoxy material and is in the order of approximately 4% to approximately 6% by weight of the epoxy material when the pellet has a particular melting temperature other than approximately 208°, 244°, 298° F. or 358° F.
Inventors
- 👤 Emil Robert Plasko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:08
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/74; H01H37/76; H01H37/764; H01H37/765
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
101 words
In a collapsible pellet thermal limiter construction having electrical switching means that changes its condition when said pellet melts by being heated to a certain temperature for the particular pellet and having an epoxy material sealing one end of a casing of said construction, the improvement comprising filler material in said epoxy material in the order of approximately 4% to approximately 6% by weight of said epoxy material whereby said filler material improves the effective seal life of said epoxy material, said pellet having a particular melting temperature of approximately 200° F. or lower or of approximately 370° F. or higher.
Claim 2
Dependent Claim
101 words
In a collapsible pellet thermal limiter construction having electrical switching means that changes its condition when said pellet melts by being heated to a certain temperature for the particular pellet and having an epoxy material sealing one end of a casing of said construction, the improvement comprising filler material in said epoxy material in the order of approximately 4% to approximately 6% by weight of said epoxy material whereby said filler material improves the effective seal life of said epoxy material, said pellet having a particular melting temperature of approximately 200° F. or lower or of approximately 370° F. or higher.
Claim 3
Dependent Claim
26 words
In a collapsible pellet thermal limiter construction as set forth in claim 1, said filler material initially having been substantially uniformly disposed throughout said epoxy material.
Claim 4
Dependent Claim
20 words
In a collapsible pellet thermal limiter construction as set forth in claim 1, said filler material comprising metallic oxide pigment.
Claim 5
Dependent Claim
94 words
In a collapsible pellet thermal limiter construction having electrical switching means that changes its condition when said pellet melts by being heated to a certain temperature for the particular pellet and having an epoxy material sealing one end of a casing of said construction, the improvement comprising filler material in said epoxy material in the order of approximately 4% to approximately 6% by weight of said epoxy material whereby said filler material improves the effective seal life of said epoxy material, said pellet having a particular melting temperature of approximately 370° F. or higher.
Claim 6
Dependent Claim
94 words
In a collapsible pellet thermal limiter construction having electrical switching means that changes its condition when said pellet melts by being heated to a certain temperature for the particular pellet and having an epoxy material sealing one end of a casing of said construction, the improvement comprising filler material in said epoxy material in the order of approximately 4% to approximately 6% by weight of said epoxy material whereby said filler material improves the effective seal life of said epoxy material, said pellet having a particular melting temperature of approximately 370° F. or higher.
Claim 7
Dependent Claim
26 words
In a collapsible pellet thermal limiter construction as set forth in claim 4, said filler material initially having been substantially uniformly disposed throughout said epoxy material.
Claim 8
Dependent Claim
20 words
In a collapsible pellet thermal limiter construction as set forth in claim 4, said filler material comprising metallic oxide pigment.
Claim 9
Dependent Claim
94 words
In a collapsible pellet thermal limiter construction having electrical switching means that changes its condition when said pellet melts by being heated to a certain temperature for the particular pellet and having an epoxy material sealing one end of a casing of said construction, the improvement comprising filler material in said epoxy material in the order of approximately 4% to approximately 6% by weight of said epoxy material whereby said filler material improves the effective seal life of said epoxy material, said pellet having a particular melting temperature of approximately 200° F. or lower.
Claim 10
Dependent Claim
94 words
In a collapsible pellet thermal limiter construction having electrical switching means that changes its condition when said pellet melts by being heated to a certain temperature for the particular pellet and having an epoxy material sealing one end of a casing of said construction, the improvement comprising filler material in said epoxy material in the order of approximately 4% to approximately 6% by weight of said epoxy material whereby said filler material improves the effective seal life of said epoxy material, said pellet having a particular melting temperature of approximately 200° F. or lower.
Claim 11
Dependent Claim
26 words
In a collapsible pellet thermal limiter construction as set forth in claim 7, said filler material initially having been substantially uniformly disposed throughout said epoxy material.
Claim 12
Dependent Claim
20 words
In a collapsible pellet thermal limiter construction as set forth in claim 7, said filler material comprising metallic oxide pigment.
Claim 13
Dependent Claim
110 words
In a method of making a collapsible pellet thermal limiter construction having electrical switching means that changes its condition when said pellet melts by being heated to a certain temperature for the particular pellet and having an epoxy material sealing one end of a casing of said construction, the improvement comprising the step of disposing filler material in said epoxy material in the order of approximately 4% to approximately 6% by weight of said epoxy material when said pellet has a particular melting temperature of approximately 200° F. or lower or of approximately 370° F. or higher whereby said filler material improves the effective seal life of said epoxy material.
Claim 14
Dependent Claim
110 words
In a method of making a collapsible pellet thermal limiter construction having electrical switching means that changes its condition when said pellet melts by being heated to a certain temperature for the particular pellet and having an epoxy material sealing one end of a casing of said construction, the improvement comprising the step of disposing filler material in said epoxy material in the order of approximately 4% to approximately 6% by weight of said epoxy material when said pellet has a particular melting temperature of approximately 200° F. or lower or of approximately 370° F. or higher whereby said filler material improves the effective seal life of said epoxy material.
Claim 15
Dependent Claim
36 words
In a method of making a collapsible pellet thermal limiter construction as set forth in claim 10, said step of disposing comprising the step of initially disposing said filler material substantially uniformly throughout said epoxy material.
Claim 16
Dependent Claim
29 words
In a method of making a collapsible pellet thermal limiter construction as set forth in claim 10, the additional step of forming said filler material from metallic oxide pigment.
Claim 17
Dependent Claim
103 words
In a method of making a collapsible pellet thermal limiter construction having electrical switching means that changes its condition when said pellet melts by being heated to a certain temperature for the particular pellet and having an epoxy material sealing one end of a casing of said construction, the improvement comprising the step of disposing filler material in said epoxy material in the order of approximately 4% to approximately 6% by weight of said epoxy material when said pellet has a particular melting temperature of approximately 370° F. or higher whereby said filler material improves the effective seal life of said epoxy material.
Claim 18
Dependent Claim
103 words
In a method of making a collapsible pellet thermal limiter construction having electrical switching means that changes its condition when said pellet melts by being heated to a certain temperature for the particular pellet and having an epoxy material sealing one end of a casing of said construction, the improvement comprising the step of disposing filler material in said epoxy material in the order of approximately 4% to approximately 6% by weight of said epoxy material when said pellet has a particular melting temperature of approximately 370° F. or higher whereby said filler material improves the effective seal life of said epoxy material.
Claim 19
Dependent Claim
36 words
In a method of making a collapsible pellet thermal limiter construction as set forth in claim 13, said step of disposing comprising the step of initially disposing said filler material substantially uniformly throughout said epoxy material.
Claim 20
Dependent Claim
29 words
In a method of making a collapsible pellet thermal limiter construction as set forth in claim 13, the additional step of forming said filler material from metallic oxide pigment.
Claim 21
Dependent Claim
103 words
In a method of making a collapsible pellet thermal limiter construction having electrical switching means that changes its condition when said pellet melts by being heated to a certain temperature for the particular pellet and having an epoxy material sealing one end of a casing of said construction, the improvement comprising the step of disposing filler material in said epoxy material in the order of approximately 4% to approximately 6% by weight of said epoxy material when said pellet has a particular melting temperature of approximately 200° F. or lower whereby said filler material improves the effective seal life of said epoxy material.
Claim 22
Dependent Claim
103 words
In a method of making a collapsible pellet thermal limiter construction having electrical switching means that changes its condition when said pellet melts by being heated to a certain temperature for the particular pellet and having an epoxy material sealing one end of a casing of said construction, the improvement comprising the step of disposing filler material in said epoxy material in the order of approximately 4% to approximately 6% by weight of said epoxy material when said pellet has a particular melting temperature of approximately 200° F. or lower whereby said filler material improves the effective seal life of said epoxy material.
Claim 23
Dependent Claim
36 words
In a method of making a collapsible pellet thermal limiter construction as set forth in claim 16, said step of disposing comprising the step of initially disposing said filler material substantially uniformly throughout said epoxy material.
Claim 24
Dependent Claim
29 words
In a method of making a collapsible pellet thermal limiter construction as set forth in claim 16, the additional step of forming said filler material from metallic oxide pigment.
References Cited (Backward Citations)
US4001754A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-20 | 1981-08-22 | 1982-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-20 | 1985-08-22 | 1986-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-20 | 1989-08-22 | 1990-02-21 | $7700.00 | Window Closed / Lapsed |