Method of making electric lamp with internal conductive reflector
First Claim
1. A method of making an electric lamp comprising:
- forming an inner light-transmitting envelope having a filament therein and a pair of electrically conductive members projecting therefrom and electrically connected to said filament;
electrically connecting an electrically conductive reflector at one end thereof to one of said electrically conductive members projecting from said inner envelope;
securing said reflector at another end thereof to said inner envelope at a location distant from said electrical connection between said reflector and conductive member such that said reflector is positioned adjacent said inner envelope;
electrically connecting a first electrical conductor to the other of said electrically conductive members projecting from said envelope and a second electrical conductor to said section of said reflector secured to said end of said inner envelope;
slidably positioning said inner envelope, reflector and conductor assembly within an open end of a piece of light-transmitting tubing such that said conductors are aligned with a predetermined portion thereof;
forming a sealed end about said conductors at said predetermined portion of said tubing such that parts of said conductors project externally of said sealed end; and
sealing the opposing end of said tubing to define an outer envelope.
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Accused Products
Abstract
A method of making a dual envelope lamp wherein a first envelope is formed having opposite sealed ends with conductive wires projecting therefrom. A formed reflector is welded at one end thereof to one wire and wrapped about the first envelope'"'"'s opposite sealed end. Conductors are connected (welded) to the other wire and the opposite end of the reflector, respectively. This reflector, first envelope and conductor assembly is then slidably inserted within the open end of a piece of quartz tubing and a press sealed formed about the conductors. Subsequently, the tubing is flushed (e.g., with argon) and filled with an inert gas at a fixed pressure, followed by a tipping operation in which the opposite end of the tubing is sealed to thus define the second (outer) envelope.
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Citations
11 Claims
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1. A method of making an electric lamp comprising:
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forming an inner light-transmitting envelope having a filament therein and a pair of electrically conductive members projecting therefrom and electrically connected to said filament; electrically connecting an electrically conductive reflector at one end thereof to one of said electrically conductive members projecting from said inner envelope; securing said reflector at another end thereof to said inner envelope at a location distant from said electrical connection between said reflector and conductive member such that said reflector is positioned adjacent said inner envelope; electrically connecting a first electrical conductor to the other of said electrically conductive members projecting from said envelope and a second electrical conductor to said section of said reflector secured to said end of said inner envelope; slidably positioning said inner envelope, reflector and conductor assembly within an open end of a piece of light-transmitting tubing such that said conductors are aligned with a predetermined portion thereof; forming a sealed end about said conductors at said predetermined portion of said tubing such that parts of said conductors project externally of said sealed end; and sealing the opposing end of said tubing to define an outer envelope. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification