Patent US3979157A successfully refreshed from Google Patents.
US3979157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron tube base
Assignee: RCA Licensing Corp
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Filing: 1974-10-10
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Granted: 1976-09-07
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Expires: 1994-10-10
Abstract
Abstract A hollow cylindrical insulating body has external longitudinal grooves and aligned apertures with tapered ends to receive the stem leads from an electron tube and support the inner sides thereof. The inner surface of the grooves has two guide tracks with inclined ends to facilitate application and removal of the socket.
Inventors
- 👤 Louis Joseph DiMattio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:10
CPC Classifications
H; H01; H01J; H01J5/00; H01J5/50; H01J5/54; H01J29/00; H01J29/92
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
167 words
A base for an electron tube comprising: a hollow cylindrical body of insulating material; a plurality of longitudinally extending grooves in the outer surface of the body, said grooves extending from one end of said body to a closed end point spaced from the other end of said body, said grooves having two longitudinal walls and an inner groove surface between said walls; a plurality of apertures extending through said body from the other end thereof to said grooves with each of said apertures opening into a separate one of said grooves; and a pair of spaced raised guide tracks in each of said grooves, each of said guide tracks extending longitudinally from said closed end point of the groove along one of said walls for a length less than the length of said groove and terminating in an exposed end point within the groove, the exposed end points of said guide tracks being inclined from the inner groove surface to the surface of the raised tracks.
Claim 2
Dependent Claim
167 words
A base for an electron tube comprising: a hollow cylindrical body of insulating material; a plurality of longitudinally extending grooves in the outer surface of the body, said grooves extending from one end of said body to a closed end point spaced from the other end of said body, said grooves having two longitudinal walls and an inner groove surface between said walls; a plurality of apertures extending through said body from the other end thereof to said grooves with each of said apertures opening into a separate one of said grooves; and a pair of spaced raised guide tracks in each of said grooves, each of said guide tracks extending longitudinally from said closed end point of the groove along one of said walls for a length less than the length of said groove and terminating in an exposed end point within the groove, the exposed end points of said guide tracks being inclined from the inner groove surface to the surface of the raised tracks.
Claim 3
Dependent Claim
245 words
An electron tube comprising: an enclosed envelope having an exhaust tubulation and a plurality of stiff electrical leads extending through the envelope in a circle about said exhaust tubulation; and an electron tube base comprising a hollow cylindrical body of insulating material, a plurality of longitudinal grooves in the outer surface of the body extending from one end of said body to a closed end point spaced from the other end of said body, said grooves having two longitudinal walls and an inner groove surface between said walls, a plurality of apertures extending through said body from the other end thereof to said grooves with each of said apertures opening into a separate one of said grooves, and a pair of spaced raised guide tracks in each of said grooves, each of said guide tracks extending longitudinally from said closed end point of the groove along one of said walls for a length less than the length of said groove and terminating at an exposed end point within the groove, the exposed end point inclining from the inner groove surface to the surface of the raised guide tracks; said electron tube base surrounds the exhaust tubulation and is secured to said enclosure with said electrical leads extending through said apertures and into the grooves, each lead fitting between the raised guide tracks within its respective groove and being of a length so that the lead does not extend beyond the ends of said guide tracks.
Claim 4
Dependent Claim
245 words
An electron tube comprising: an enclosed envelope having an exhaust tubulation and a plurality of stiff electrical leads extending through the envelope in a circle about said exhaust tubulation; and an electron tube base comprising a hollow cylindrical body of insulating material, a plurality of longitudinal grooves in the outer surface of the body extending from one end of said body to a closed end point spaced from the other end of said body, said grooves having two longitudinal walls and an inner groove surface between said walls, a plurality of apertures extending through said body from the other end thereof to said grooves with each of said apertures opening into a separate one of said grooves, and a pair of spaced raised guide tracks in each of said grooves, each of said guide tracks extending longitudinally from said closed end point of the groove along one of said walls for a length less than the length of said groove and terminating at an exposed end point within the groove, the exposed end point inclining from the inner groove surface to the surface of the raised guide tracks; said electron tube base surrounds the exhaust tubulation and is secured to said enclosure with said electrical leads extending through said apertures and into the grooves, each lead fitting between the raised guide tracks within its respective groove and being of a length so that the lead does not extend beyond the ends of said guide tracks.
References Cited (Backward Citations)
US3278886A
Cited
US3771105A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-07 | 1980-03-08 | 1980-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-07 | 1984-03-08 | 1984-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-07 | 1988-03-08 | 1988-09-07 | $7700.00 | Window Closed / Lapsed |