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Method of manufacturing gas-charged electric switches

Assignee: Panasonic Electric Works Co Ltd
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Filing: 1980-05-12
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Granted: 1982-01-12
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Expires: 2000-05-12
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Abstract

Abstract This method of manufacturing gas-charging electric switches comprises a step of housing an electric switch in a container provided with two gas substituting ports and closing an opening of the container for the housing to render the container hermetical except at the gas substituting ports, a step of pouring a gas through one of the gas substituting ports of the container and discharging a gas in the container through the other gas substituting port to perform the gas substitution in the container and a step of tightly sealing the gas substituting ports with punches when the concentration of the charged gas in the container reaches a required level, and these steps are incorporated in other steps as sequential steps in the general atmosphere.

Inventors

  • 👤 Hidetoshi Takeyama
  • 👤 Yukihiro Uezasa
  • 👤 Yasuo Yuasa

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 10:01
CPC Classifications
H; H01; H01H; H01H11/00; H01H1/00; H01H1/64; H01H1/66; H01H50/00; H01H50/02; H01H50/023; H01H2050/025; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49105; Y10T29/53; Y10T29/5313; Y10T29/532; Y10T29/53248

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 98 words
A method of manufacturing gas-charged electric switches characterized in that an electric switch housing step in which an electric switch is housed in a container provided with two gas substituting ports and with an electric switch housing opening and said opening is tightly sealed, a gas pouring step in which a gas is poured through one of said gas substituting ports and a gas in the container is discharged through the other gas substituting port, and a gas sealing step in which the gas substituting ports are tightly sealed with punches are performed sequentially in the general atmosphere.
Claim 2
Independent Claim 98 words
A method of manufacturing gas-charged electric switches characterized in that an electric switch housing step in which an electric switch is housed in a container provided with two gas substituting ports and with an electric switch housing opening and said opening is tightly sealed, a gas pouring step in which a gas is poured through one of said gas substituting ports and a gas in the container is discharged through the other gas substituting port, and a gas sealing step in which the gas substituting ports are tightly sealed with punches are performed sequentially in the general atmosphere.

References Cited (Backward Citations)

US2951321A Cited
US3182382A Cited
US3360382A Cited
US4004337A Cited
US3897672A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1985-01-11 1985-07-13 1986-01-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1989-01-11 1989-07-13 1990-01-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1993-01-11 1993-07-13 1994-01-12 $7700.00 Window Closed / Lapsed

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