US3801178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of providing support for conductors of an electric filament or discharge lamp
Assignee: US Philips Corp
•
Filing: 1972-06-08
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Granted: 1974-04-02
•
Expires: 1992-06-08
Abstract
Abstract An electric lamp comprising a support having continuous supporting members and/or current conductors which are secured in a pinch seal. In order to increase the insensitivity to vibrations, the support which extends at right angles to the axis of the lamp is secured to the side wall of the lamp vessel preferably by a sealing operation.
Inventors
- 👤 Den Berge H Van
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:04
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/38; H01K1/18; H01K3/00; H01K3/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
151 words
A method of manufacturing an electric lamp of the type having a tubular vessel sealed on at least one end by a pinch seal comprising the steps of arranging an assembly constituting elongated lamp members being passed through a support in a predetermined position within an open tube of glass, said members having at least one light emitting element secured thereto and assuming an aligned position relative to the support, said support being formed as a beam; securing the support to the side wall of said tube at either end of the beam in at least two places; subsequent to securing the support, softening the tube by heating at one end to form a pinch seal at a predetermined position relative to said support; evacuating the resultant lamp vessel after said pinch seal is formed; providing said evacuated vessel with an appropriate gas; and sealing the other end of said tube.
Claim 2
Independent Claim
151 words
A method of manufacturing an electric lamp of the type having a tubular vessel sealed on at least one end by a pinch seal comprising the steps of arranging an assembly constituting elongated lamp members being passed through a support in a predetermined position within an open tube of glass, said members having at least one light emitting element secured thereto and assuming an aligned position relative to the support, said support being formed as a beam; securing the support to the side wall of said tube at either end of the beam in at least two places; subsequent to securing the support, softening the tube by heating at one end to form a pinch seal at a predetermined position relative to said support; evacuating the resultant lamp vessel after said pinch seal is formed; providing said evacuated vessel with an appropriate gas; and sealing the other end of said tube.
Claim 3
Dependent Claim
62 words
The method of manufacturing an electric lamp as in claim 1 wherein the support is sealed in at least two places of the circumference of the tube by first softening the tube in which the support is arranged in at least two places of its circumference and then providing at said places a pressure differential on either side of the tube wall.
Claim 4
Dependent Claim
23 words
The method as in claim 1 wherein said elongated lamp members include current conducting members and said light emitting element is a filament.
Claim 5
Dependent Claim
20 words
The method as in claim 1 wherein said elongated lamp members are supports and said light emitting elements are electrodes.
References Cited (Backward Citations)
US2412800A
Cited
US2572055A
Cited
GB685800A
Cited
GB737300A
Cited
US3209188A
Cited
US3384781A
Cited
US3548244A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |