US4168480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Relay assembly
Assignee: TORR LABORATORIES Inc
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Filing: 1978-02-13
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Granted: 1979-09-18
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Expires: 1998-02-13
Abstract
Abstract A high voltage magnetic relay is enclosed by an insulating housing containing a gas such as sulfur hexafluoride under pressure. The switch terminals removably extend through a wall of the housing and are sealed. The magnet structure is removably connected to the housing by a sealed joint. A fill valve removably extends through a wall of the housing and is sealed thereto. The armature shifts a pivotal arm in the housing between open and closed contact positions. The housing is formed of a polyamide material having the property of being resistant to deterioriation by fluorine gas, said material being poly hexamethylene terephthalic amide.
Inventors
- 👤 Victor E. De Lucia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:01
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/54; H01H33/00; H01H33/02; H01H33/021; H01H50/02; H01H50/023; H01H2050/025
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
108 words
In a relay comprising a housing of electrical insulating synthetic resin material, terminals in said housing extending through the housing to the exterior thereof, at least one of said terminals providing a contact within said housing, a contact arm within said housing connected to another of said terminals, electromagnetic operating means for engaging said contact arm with said terminal contact and for disengaging said contact arm from said terminal contact, means securing each terminal to said housing and to provide a leakproof seal between said terminals and housing, and means for admitting a gas into said housing: the improvement wherein said synthetic resin is poly hexamethylene terephthalic amide.
Claim 2
Dependent Claim
108 words
In a relay comprising a housing of electrical insulating synthetic resin material, terminals in said housing extending through the housing to the exterior thereof, at least one of said terminals providing a contact within said housing, a contact arm within said housing connected to another of said terminals, electromagnetic operating means for engaging said contact arm with said terminal contact and for disengaging said contact arm from said terminal contact, means securing each terminal to said housing and to provide a leakproof seal between said terminals and housing, and means for admitting a gas into said housing: the improvement wherein said synthetic resin is poly hexamethylene terephthalic amide.
Claim 3
Dependent Claim
30 words
A relay as defined in claim 1; the further improvement wherein said terminals are removably mounted on said housing and including resilient seal means between said housing and said terminals.
Claim 4
Dependent Claim
39 words
A relay as defined in claim 1; the further improvement wherein said terminals include threaded connectors for electrical conductors threaded into said housing, said housing and said connectors having opposed shoulders, and a resilient seal ring between said shoulders.
Claim 5
Dependent Claim
53 words
A relay as defined in claim 1; the further improvement wherein said terminals are removably mounted on said housing and including resilient seal means between said housing and said terminals, means removably mounting said electromagnetic operating means on said housing, and including resilient sealing means between said housing and said electromagnetic operating means.
Claim 6
Dependent Claim
44 words
A relay as defined in claim 1; further including the improvement wherein said means for admitting gas into said housing comprises valve means, means removably mounting said valve means in said housing including resilient sealing means for said mounting means and said valve means.
Claim 7
Dependent Claim
42 words
A relay as defined in claim 1; further including the improvement wherein each of said terminals, said electromagnetic operating means and said means for admitting gas into said housing include means removably securing the same to said housing including an elastomeric seal.
Claim 8
Dependent Claim
118 words
In a relay comprising a housing of electrical insulating synthetic resin material, terminals in said housing extending through the housing to the exterior thereof, at least one of said terminals providing a contact within said housing, a contact arm within said housing connected to another of said terminals, electromagnetic operating means for engaging said contact arm with said terminal contact and for disengaging said contact arm from said terminal contact, means securing each terminal to said housing and to provide a leakproof seal between said terminals and housing, and means for admitting a gas into said housing: the improvement wherein said synthetic resin is amorphous, transparent polyamide made by polycondensation from terephthalic acid and an alkyl-substituted hexamethylene diamine.
Claim 9
Dependent Claim
118 words
In a relay comprising a housing of electrical insulating synthetic resin material, terminals in said housing extending through the housing to the exterior thereof, at least one of said terminals providing a contact within said housing, a contact arm within said housing connected to another of said terminals, electromagnetic operating means for engaging said contact arm with said terminal contact and for disengaging said contact arm from said terminal contact, means securing each terminal to said housing and to provide a leakproof seal between said terminals and housing, and means for admitting a gas into said housing: the improvement wherein said synthetic resin is amorphous, transparent polyamide made by polycondensation from terephthalic acid and an alkyl-substituted hexamethylene diamine.
Claim 10
Dependent Claim
101 words
A relay comprising: a housing of electrical insulating material; terminals in said housing providing contact means; contact arm means within said housing connected with another of said terminals; electromagnetic operating means for engaging said contact arm with and disengaging said contact arm means from said contact means; means for admitting gas and retaining said gas under pressure in said housing; said terminals each including a screw in a threaded bore in said housing; a resilient seal ring between said screw and said housing to prevent loss of gas from said housing; each screw having means for connection with an electrical conductor.
Claim 11
Dependent Claim
101 words
A relay comprising: a housing of electrical insulating material; terminals in said housing providing contact means; contact arm means within said housing connected with another of said terminals; electromagnetic operating means for engaging said contact arm with and disengaging said contact arm means from said contact means; means for admitting gas and retaining said gas under pressure in said housing; said terminals each including a screw in a threaded bore in said housing; a resilient seal ring between said screw and said housing to prevent loss of gas from said housing; each screw having means for connection with an electrical conductor.
Claim 12
Dependent Claim
33 words
A relay as defined in claim 8; said screw having an enlarged head thereon; said housing having a shoulder extending about said bore; said seal ring being between said head and said shoulder.
Claim 13
Dependent Claim
34 words
A relay as defined in claim 8; said screw having an enlarged head thereon; said housing having a bevelled shoulder extending about said bore; said seal ring being between said head and said shoulder.
Claim 14
Dependent Claim
22 words
A relay as defined in claim 8; said means for connection with an electrical conductor being a threaded bore in said screw.
Claim 15
Dependent Claim
20 words
A relay as defined in claim 8; said contact means being a rod united with said screw in said housing.
Claim 16
Dependent Claim
38 words
A relay as defined in claim 8; said means for admitting gas and retaining gas in said housing including valve means having a support threaded into said housing and resilient seal means between said housing and said support.
Claim 17
Dependent Claim
53 words
A relay as defined in claim 8; said means for admitting gas and retaining gas in said housing including valve means having a support threaded into said housing and resilient seal means between said housing and said support, said valve means including a body extending through said seal means and sealingly engaged thereby.
Claim 18
Dependent Claim
29 words
A relay as defined in claim 8; means removably securing said electromagnetic operating means to said housing including a resilient seal means preventing loss of gas from said housing.
Claim 19
Dependent Claim
24 words
A relay as defined in claim 8; said housing having formations between said terminals projecting from the housing and forming an elongated arc path.
Claim 20
Dependent Claim
36 words
A relay as defined in claim 8; said housing having formations between said terminals projecting from the housing and forming an elongated arc path; said formations being internally of said housing and externally of said housing.
Claim 21
Dependent Claim
114 words
In a relay comprising a housing of electrical insulating synthetic resin material, terminals in said housing extending through the housing to the exterior thereof, at least one of said terminals providing a contact within said housing, a contact arm within said housing connected to another of said terminals, electromagnetic operating means for engaging said contact arm with said terminal contact and for disengaging said contact arm from said terminal contact, means securing each terminal to said housing and to provide a leakproof seal between said terminals and housing, and means for admitting a gas into said housing; said housing having formations between said terminals projecting from the housing and forming an elongated arc path.
Claim 22
Dependent Claim
114 words
In a relay comprising a housing of electrical insulating synthetic resin material, terminals in said housing extending through the housing to the exterior thereof, at least one of said terminals providing a contact within said housing, a contact arm within said housing connected to another of said terminals, electromagnetic operating means for engaging said contact arm with said terminal contact and for disengaging said contact arm from said terminal contact, means securing each terminal to said housing and to provide a leakproof seal between said terminals and housing, and means for admitting a gas into said housing; said housing having formations between said terminals projecting from the housing and forming an elongated arc path.
Claim 23
Dependent Claim
118 words
In a relay comprising a housing of electrical insulating synthetic resin material, terminals in said housing extending through the housing to the exterior thereof, at least one of said terminals providing a contact within said housing, a contact arm within said housing connected to another of said terminals, electromagnetic operating means for engaging said contact arm with said terminal contact and for disengaging said contact arm from said terminal contact, means securing each terminal to said housing and to provide a leakproof seal between said terminals and housing, and means for admitting a gas into said housing: the improvement wherein said synthetic resin is amorphous, transparent polyamide made by polycondensation from terephthalic acid and an alkyl-substituted hexamethylene diamine.
Claim 24
Dependent Claim
118 words
In a relay comprising a housing of electrical insulating synthetic resin material, terminals in said housing extending through the housing to the exterior thereof, at least one of said terminals providing a contact within said housing, a contact arm within said housing connected to another of said terminals, electromagnetic operating means for engaging said contact arm with said terminal contact and for disengaging said contact arm from said terminal contact, means securing each terminal to said housing and to provide a leakproof seal between said terminals and housing, and means for admitting a gas into said housing: the improvement wherein said synthetic resin is amorphous, transparent polyamide made by polycondensation from terephthalic acid and an alkyl-substituted hexamethylene diamine.
References Cited (Backward Citations)
US3604870A
Cited
US4039984A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-09-17 | 1983-03-19 | 1983-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-17 | 1987-03-19 | 1987-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-17 | 1991-03-19 | 1991-09-18 | $7700.00 | Window Closed / Lapsed |