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US3771105A Expired / Lapsed US ⏱️ 0.0 years remaining

Adapters for the terminal pins of electron tubes

Assignee: Hitachi Ltd
•
Filing: 1972-02-23
•
Granted: 1973-11-06
•
Expires: 1992-02-23
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Abstract

Abstract An adapter for protecting terminal pins of an electron tube is comprised by a cylindrical body having a central bore of a diameter sufficient to accommodate the exhaust member at the bottom of the electronic tube and a plurality of axially extending grooves provided on the periphery of the cylindrical body at positions corresponding to the terminal pins.

Inventors

  • 👤 E Yamazaki
  • 👤 T Kawamura

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 20:30
CPC Classifications
H; H01; H01R; H01R33/00; H01R33/74; H01R33/76; H01R33/7678; H01J; H01J5/00; H01J5/50; H01J5/54; H01R13/00; H01R13/02; H01R13/26

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 180 words
For use with an electron tube having a central exhaust member and a plurality of terminal pins arranged to surround said central exhaust member and provided with a ferrule having a guide key, an adapter for protecting said terminal pins and positioning said pins in said adapter within the central bore of a socket comprising a cylindrical body having a central bore of a diameter sufficient to accommodate said exhaust member, a keyway formed on the inner wall of said central bore for accommodating said key and a plurality of axially extending grooves provided on said cylindrical body at positions corresponding to said terminal pins, an axial slot extending radially from each of said grooves through the outer surface of said body said grooves adapted to receive said pins and said slots adapted to expose a portion of the surface of each pin for contact with a leaf spring member in said socket and to retain said pins in said grooves to prevent outward bending thereof, one end surface of said cylindrical body facing said electron tube being substantially flat.
Claim 2
Dependent Claim 180 words
For use with an electron tube having a central exhaust member and a plurality of terminal pins arranged to surround said central exhaust member and provided with a ferrule having a guide key, an adapter for protecting said terminal pins and positioning said pins in said adapter within the central bore of a socket comprising a cylindrical body having a central bore of a diameter sufficient to accommodate said exhaust member, a keyway formed on the inner wall of said central bore for accommodating said key and a plurality of axially extending grooves provided on said cylindrical body at positions corresponding to said terminal pins, an axial slot extending radially from each of said grooves through the outer surface of said body said grooves adapted to receive said pins and said slots adapted to expose a portion of the surface of each pin for contact with a leaf spring member in said socket and to retain said pins in said grooves to prevent outward bending thereof, one end surface of said cylindrical body facing said electron tube being substantially flat.
Claim 3
Dependent Claim 61 words
The adapter according to claim 1 for use with tubes having said terminal pins extending surrounded for a portion of their length by a conical collar, wherein each of said grooves has enlarged inlet opening with a frustoconical section and the side of each of said grooves is opened to permit viewing of the condition of the terminal pin received therein.

References Cited (Backward Citations)

US2033748A Cited
US3184532A Cited
US3251016A Cited
US3325772A Cited
US3414869A Cited
US3388210A Cited
US3601777A Cited
US3601699A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-11-05 1977-05-07 1977-11-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-11-05 1981-05-07 1981-11-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-11-05 1985-05-07 1985-11-06 $7700.00 Window Closed / Lapsed

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