| Patent Number |
Title Of Patent |
Date Issued |
| D467358 |
Tungsten halogen lamp |
December 17, 2002 |
|
| D303015 |
Electric reflector lamp |
August 22, 1989 |
|
| 6705748 |
Lamp with ceramic light shield |
March 16, 2004 |
| A ceramic cup may be fitted in the neck of a reflector region to provide good reflection or blockage of the light incident on the reflector neck. Light is then prevented light from incorrectly exiting through the lamp neck or from heating the neck region. The ceramic cup can be cheaper t |
| 4945288 |
Double jacket lamp |
July 31, 1990 |
| A double jacket arc lamp is disclosed. A double jacket arc lamp may be formed with an electric lamp capsule having an inner light transmissive envelope with electrical lead extending from the inner envelope through a first seal, and a second light transmissive envelope sealed to the inne |
| 4922155 |
Protective circuit for reduced voltage lamps |
May 1, 1990 |
| A fail safe feature for long life reduced voltage lamps including diodes id disclosed. As known, a low wattage lamp may designed for longer life by using a lower root mean square design voltage. The root means square voltage of the alternating source current may be lowered by including a |
| 4918355 |
Electric lamp with protective base |
April 17, 1990 |
| An electric lamp (e.g., tungsten halogen) including an elongated envelope with at least one sealed end portion of flattened configuration. Located on the sealed end portion is a conductive base member of hollow configuration which is electrically coupled to the lamp's lead-in conduct |
| 4868451 |
Lamp filament support construction |
September 19, 1989 |
| A method of constructing a filament support member from a single-piece preformed refractory metal wire having at least one loop protrusion formed in the wire and positioned between the ends of the wire. A section of glass tubing is positioned over and supported by the loop protrusion wit |
| 4791333 |
Electric lamp with internal conductive reflector forming part of the circuitry thereof |
December 13, 1988 |
| An electric lamp, such as an infrared lamp, including a sealed outer envelope having a sealed end portion in which are positioned a pair of electrical conductors. Centrally positioned within the outer envelope is a sealed inner, light-transmitting envelope which includes therein a coiled |
| 4774432 |
Electric lamp with flexible cover holder |
September 27, 1988 |
| An improved electric lamp wherein a flexible cover holder is utilized to secure the lamp's cover means (e.g., lens) against the reflector in a sealed manner. The holder flexes during lamp operation to enable expansion and/or contraction of the cover means in such a manner that damage the |
| 4755711 |
Electric lamp with ceramic reflector |
July 5, 1988 |
| An electric lamp of compact, rugged design capable of high temperature operation in such applications as down lighting, display lighting, track lighting, etc. The lamp includes a ceramic reflector having therein a capsule (e.g., tungsten halogen or arc discharge) which serves as the |
| 4728849 |
Capsule light source for electric lamp |
March 1, 1988 |
| A light-emitting capsule for use in a reflector-type electric lamp utilized in such applications as display and track lighting. The capsule includes a hollow bulb portion containing a light source (coiled filament or arc) therein and an elongated sealed end including a flattened, narrow |
| 4710676 |
Multi-level fuser lamp |
December 1, 1987 |
| A tubular incandescent lamp for use in heating applications where multiple levels of infrared energy are available from one source while providing for compactness in size and ease in manufacturing. The primary use for such a lamp is in the fusing system of a photocopy machine where speed |
| 4702717 |
Method of making electric lamp with internal conductive reflector |
October 27, 1987 |
| 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 connec |
| 4626735 |
Incandescent lamp having two lead-in conductors sealed within one end and including expansion me |
December 2, 1986 |
| A tungsten-halogen lamp including a tubular quartz envelope wherein both of the lead-in conductors designed for providing electrical energy to the lamp's coiled filament are strategically positioned within a single, press-sealed end portion of the lamp's envelope. Electrical connections |
| 4623817 |
Incandescent lamp having two lead-in conductors sealed within one end thereof |
November 18, 1986 |
| A tungsten-halogen lamp including a tubular quartz envelope wherein both of the lead-in conductors designed for providing electrical energy to the lamp's coiled filament are strategically positioned within a single, press-sealed end portion of the lamp's envelope. Electrical connections |
| 4621220 |
Incandescent lamp having two lead-in conductors sealed within one end thereof |
November 4, 1986 |
| A tungsten-halogen lamp including a tubular quartz envelope wherein both of the lead-in conductors designed for providing electrical energy to the lamp's coiled filament are strategically positioned within a single, press-sealed end portion of the lamp's envelope. Electrical connections |
| 4535268 |
High pressure tipless tungsten halogen lamp |
August 13, 1985 |
| A high pressure, tungsten halogen lamp wherein a predetermined quantity of a gas mixture including an inert gas (e.g., argon) and halogen compound (e.g., methyliodide) constitute the lamp's combined atmosphere. The gas mixture is flowed into the tubular member which ultimately comprises |
| 4510416 |
Filament support for tubular lamp |
April 9, 1985 |
| A filament support for a helically coiled filament of a tubular double-ended incandescent lamp in which the support is in the form of a wire having a first end portion extending in a loop which is circumferentially engageable with the inner wall of the envelope, a second end portion |
| 4509928 |
Method of making high pressure tungsten halogen lamps |
April 9, 1985 |
| A method of making a high pressure, tungsten halogen lamp wherein a predetermined quantity of a gas mixture including an inert gas (e.g., argon) and halogen compound (e.g., methyliodide) are introduced into the retained tubular member which eventually comprises the sealed envelope of |
| 4442374 |
Dual length copier lamp |
April 10, 1984 |
| A tubular incandescent lamp for use in a fusing type lamp in a photocopy machine in which the lamp filament means is capable of operation at two different lengths on a selective basis as a function of the different lengths of paper that are to be reproduced by the copier. In one embo |
| 4359665 |
Filament support for tubular lamp |
November 16, 1982 |
| A wire support for the coiled-coil filament of a tubular double-ended incandescent lamp in which the support is formed of a single wire which extends longitudinally along a portion of the inner wall of the lamp envelope, with each end of the support wire terminating in a loop of a si |
