USB517858I5 - - Google Patents

Info

Publication number
USB517858I5
USB517858I5 US51785874A USB517858I5 US B517858 I5 USB517858 I5 US B517858I5 US 51785874 A US51785874 A US 51785874A US B517858 I5 USB517858 I5 US B517858I5
Authority
US
United States
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to US05/517,858 priority Critical patent/US4000999A/en
Publication of USB517858I5 publication Critical patent/USB517858I5/en
Application granted granted Critical
Publication of US4000999A publication Critical patent/US4000999A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/662—Housings or protective screens
    • H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00—Other methods of shaping glass
    • C03B19/04—Other methods of shaping glass by centrifuging
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/662—Housings or protective screens
    • H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
    • H01H2033/66276—Details relating to the mounting of screens in vacuum switches

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Joining Of Glass To Other Materials (AREA)
US05/517,858 1973-12-26 1974-10-25 Centrifugally casting hollow glass body around vapor shield Expired - Lifetime US4000999A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US05/517,858 US4000999A (en) 1973-12-26 1974-10-25 Centrifugally casting hollow glass body around vapor shield

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US42751773A 1973-12-26 1973-12-26
US05/517,858 US4000999A (en) 1973-12-26 1974-10-25 Centrifugally casting hollow glass body around vapor shield

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US42751773A Division 1973-12-26 1973-12-26

Publications (2)

Publication Number Publication Date
USB517858I5 true USB517858I5 (en) 1976-02-17
US4000999A US4000999A (en) 1977-01-04

Family

ID=27027431

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/517,858 Expired - Lifetime US4000999A (en) 1973-12-26 1974-10-25 Centrifugally casting hollow glass body around vapor shield

Country Status (1)

Country Link
US (1) US4000999A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4214138A (en) * 1978-03-08 1980-07-22 General Electric Company Vapor shield support ring for a vacuum interrupter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2478624A (en) * 1946-12-10 1949-08-09 Gen Electric Centrifugal casting of glass bushings
US3376186A (en) * 1962-08-07 1968-04-02 Gen Electric Centrifugally cast hollow glass body
US3417448A (en) * 1966-05-24 1968-12-24 Ray H Kelley & Associates Method of moulding electron tubes around removable mandrels carrying the tube electrodes
US3783094A (en) * 1969-09-16 1974-01-01 Siemens Ag Articles produced by centrifugal casting

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2478624A (en) * 1946-12-10 1949-08-09 Gen Electric Centrifugal casting of glass bushings
US3376186A (en) * 1962-08-07 1968-04-02 Gen Electric Centrifugally cast hollow glass body
US3417448A (en) * 1966-05-24 1968-12-24 Ray H Kelley & Associates Method of moulding electron tubes around removable mandrels carrying the tube electrodes
US3783094A (en) * 1969-09-16 1974-01-01 Siemens Ag Articles produced by centrifugal casting

Also Published As

Publication number Publication date
US4000999A (en) 1977-01-04

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