Patent US3586910A successfully refreshed from Google Patents.
US3586910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal hermetic motor protection system
Assignee: White Consolidated Industries Inc
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Filing: 1969-05-19
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Granted: 1971-06-22
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Expires: 1989-05-19
Abstract
Abstract A hermetic motor protection system employing a currenttemperature protection device in circuit with the motor and mounted internally of the motor shell directly on fixed terminal plugs sealingly extending through the motor shell, the protection device being part of a novel terminal and protection assembly which is readily accessible within the shell.
Inventors
- 👤 Rudolph Stuart Sauber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:30
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/32; H01H37/52; H01H37/54; H01H37/5427; H01H37/5436; H02; H02K; H02K11/00; H02K11/20; H02K11/25
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
128 words
In a hermetic motor encased in a shell, first terminals mounted on said shell, a terminal housing located within said shell, second terminals in said housing removably connected to said first terminals, and cooperating therewith to deliver electrical energy through conductors to said motor, a conductive strip connected to one of said second terminals and extending outwardly through said housing, a casing mounted on said strip externally of said housing and within said shell, a bimetallic switching assembly within said casing connected in circuit with said one of said second terminals through said metallic strip, said bimetallic switching assembly being normally closed, and being opened in response to an increase in temperature within said shell to thereby deenergize said motor in response to excessive temperature within said shell.
Claim 2
Dependent Claim
128 words
In a hermetic motor encased in a shell, first terminals mounted on said shell, a terminal housing located within said shell, second terminals in said housing removably connected to said first terminals, and cooperating therewith to deliver electrical energy through conductors to said motor, a conductive strip connected to one of said second terminals and extending outwardly through said housing, a casing mounted on said strip externally of said housing and within said shell, a bimetallic switching assembly within said casing connected in circuit with said one of said second terminals through said metallic strip, said bimetallic switching assembly being normally closed, and being opened in response to an increase in temperature within said shell to thereby deenergize said motor in response to excessive temperature within said shell.
Claim 3
Dependent Claim
114 words
In a hermetic motor encased in a shell, first terminals mounted on said shell, a housing within said shell, second terminals within said housing removably connected to said first terminals and cooperating therewith to deliver electrical energy throuGh conductors to said motor, a conductor strip connected to said one of said second terminals and extending outwardly through said housing, and motor protection means mounted on said strip in electrical circuit therewith, said motor protection means functioning to protect said motor against excessive current and temperature operating conditions, and relay means mounted on said first terminal externally of said shell, said relay means being cooled by ambient air when energized during operation of said motor.
Claim 4
Dependent Claim
114 words
In a hermetic motor encased in a shell, first terminals mounted on said shell, a housing within said shell, second terminals within said housing removably connected to said first terminals and cooperating therewith to deliver electrical energy throuGh conductors to said motor, a conductor strip connected to said one of said second terminals and extending outwardly through said housing, and motor protection means mounted on said strip in electrical circuit therewith, said motor protection means functioning to protect said motor against excessive current and temperature operating conditions, and relay means mounted on said first terminal externally of said shell, said relay means being cooled by ambient air when energized during operation of said motor.
Claim 5
Dependent Claim
148 words
An electric motor protection system comprising an electric motor compressor unit mounted in a hermetically sealed shell, a terminal assembly sealingly extending through said shell and having external connector portions adapted for connection to a power source and internal connector portions, a housing within said shell and containing terminals adapted for connection to said internal connector portions and cooperating therewith to conduct electrical energy through conductors to said motor, a conductor strip associated with one of said terminals and extending outwardly of said housing, a casing carried by said strip externally of said housing and within said shell, a bimetallic switch assembly within said casing connected in series with said strip, said casing and the conductor leading to said motor, said bimetallic switch assembly normally being closed and being opened when the temperature within said shell reaches a predetermined level to thereby protect said motor against excessive heat.
Claim 6
Dependent Claim
148 words
An electric motor protection system comprising an electric motor compressor unit mounted in a hermetically sealed shell, a terminal assembly sealingly extending through said shell and having external connector portions adapted for connection to a power source and internal connector portions, a housing within said shell and containing terminals adapted for connection to said internal connector portions and cooperating therewith to conduct electrical energy through conductors to said motor, a conductor strip associated with one of said terminals and extending outwardly of said housing, a casing carried by said strip externally of said housing and within said shell, a bimetallic switch assembly within said casing connected in series with said strip, said casing and the conductor leading to said motor, said bimetallic switch assembly normally being closed and being opened when the temperature within said shell reaches a predetermined level to thereby protect said motor against excessive heat.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |