Patent US3771105A successfully refreshed from Google Patents.
US3771105A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adapters for the terminal pins of electron tubes
Assignee: Hitachi Ltd
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Filing: 1972-02-23
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Granted: 1973-11-06
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Expires: 1992-02-23
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)
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US3251016A
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US3325772A
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US3414869A
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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 |