Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Blaisdell; Ronald G.
Address:
Saugus, MA
No. of patents:
30
Patents:




Patent Number Title Of Patent Date Issued
D334245 Fluorescent lamp March 23, 1993
D321857 Fluorescent lamp holder or the like November 26, 1991
D313659 Fluorescent lamp or the like January 8, 1991
D291921 Lamp September 15, 1987
D291124 Fluorescent lamp or the like July 28, 1987
D290513 Fluorescent lamp June 23, 1987
D290110 Adaptor base for fluorescent lamp or the like June 2, 1987
D290045 Electric lamp May 26, 1987
D251611 Photochemotherapy bed patient unit April 17, 1979
D248316 Modular photochemotherapy chamber June 27, 1978
D248315 Photochemotherapy chamber June 27, 1978
5142191 Aperture fluorescent lamp with press seal configuration August 25, 1992
A subminiature aperture of fluorescent lamp is fabricated with press seals to facilitate accurate orientation of the aperture relative to an optical system. Flat surfaces of the press seal are accurately aligned relative to the aperture during manufacturing. The press seals can include d
5116272 Method and apparatus for forming apertures in fluorescent lamps May 26, 1992
An apparatus for making an aperture in a coating on an inside surface of a lamp envelope such as a miniature fluorescent lamp envelope. The apparatus includes a magnetic scraping tool disposed adjacent to the inside surface of the lamp envelope and a magnet disposed adjacent to the outsi
5086249 Compact discharge lamp unit and method for manufacturing same February 4, 1992
A compact fluorescent lamp unit comprises a double U-shaped discharge tube having a base shell secured to one end thereof. A housing containing the necessary starting and operating circuitry includes a first portion having a standardized base and a second portion surrounding the base she
4990821 Multicolor picture element with merged colors February 5, 1991
A plug-in lamp assembly for use as a picture element in large-screen information display systems. The lamp assembly includes red, green and blue discharge lamps for selectively generating different colors. Each discharge lamp has electrical leads extending from a first end and a light
4937487 Picture element lamp assembly for information display system June 26, 1990
A plug-in lamp assembly for use as a picture element in an information display screen includes a plurality of low-pressure arc discharge lamps for selectively generating multiple colors, a lamp plug for interconnection and mounting of the discharge lamps, and a lamp socket for plug-i
4934768 Picture element lamp assembly for information display system June 19, 1990
A plug-in lamp assembly for use as a picture element in large-screen information display systems. The lamp assembly includes red, green and blue discharge lamps for selectively generating different colors. Each discharge lamp has electrical leads extending from a first end and a light
4878159 Fluorescent lamp having removable jacket October 31, 1989
A fluorescent lamp unit including an adapter which contains a ballast, a fluorescent lamp electrically coupled to the adapter, a compressible gasket member and a jacket. The jacket is adapted to be easily removed from the unit upon failure of the fluorescent lamp. An inwardly protruding
4647809 Electric lamp with self-mounting frame-assembly and method of constructing same March 3, 1987
A double-enveloped electric lamp having a self-mounting frame-assembly for supporting a light-source capsule within the outer envelope, such frame-assembly being mounted by means of elastic and frictional forces other than glass-to-glass or glass-to-metal seals. In one embodiment of
4608624 Projection lamp unit with separable lamp capsule August 26, 1986
A projection lamp unit 10 including a reflector (11) having a concave reflecting portion (13) and a rearward extending neck portion (15). Secured to the reflector is an insulative socket (23) in which is contained a pair of electrical contacts (31). Each contact includes a female rec
4500948 One-piece frame for an electric lamp February 19, 1985
This invention provides a one-piece frame for electric lamps. The frame has a one-piece body formed by bending operations on a pre-cut or pre-stamped blank sheet of stiff electrically conductive material. In an alternate embodiment of the invention, the frame has a one-piece body formed
4482942 Projection unit including glass reflector with insulative cap member November 13, 1984
An improved projection unit including a glass reflector having a forward reflecting portion which includes an internal substantially concave reflecting surface and an apex portion with an opening therein. An incandescent lamp is oriented such that its envelope portion is arranged rel
4403276 Front loading projection unit with snap in capsule September 6, 1983
An improved projection unit which enables front removal of the unit's tungsten halogen projection lamp from the unit's glass reflector. A first retention means in the form of a boxlike metallic "can" is secured to the lamp's press-sealed end and held in place by a pair of depressible,
4392189 Front loading projection unit with threaded resilient retention member July 5, 1983
An improved projection unit including a glass reflector and a capsule member (tungsten halogen lamp and metallic retention member) removably positioned within the reflector. The projecting end of the metal retention member is threaded only on two sides and adapted for having a single
4389700 Projection unit with separable lamp capsule and slidable means for ejecting same June 21, 1983
A projection unit for use within a slide or film projector, or a microfilm viewer. The unit comprises an electrically insulative holder, a socket forming part of the holder's rear upstanding segment, a glass reflector secured to the holder's front segment such that its forward aperture
4388679 Projection lighting unit with glass reflector capable of dual insertion June 14, 1983
A projection lighting unit which enables dual insertion of the unit's glass reflector therein. The reflector, having a tungsten-halogen projection lamp sealed therein, can be inserted in a vertical manner (and therefore parallel to the plane of the unit's faceplate) or it can be inserted
4384319 Projection lighting unit with rear loading lamp capsule member May 17, 1983
A projection lighting unit which includes a U-shaped bracket member having an apertured faceplate and a rear upstanding wall, a glass reflector secured to the bracket's faceplate portion and including a concave reflecting portion and a rear neck portion adjacent thereto and including
4130081 Activation means for flashlamp article December 19, 1978
A flashlamp article activation means which includes a casing, an activator movably oriented within the casing, and an engagement member for engaging the activator to cause it to move within the casing and activate the flashlamp article positioned on the casing. A helical spring is used t
4100415 Modular photochemotherapy chamber July 11, 1978
A modular chamber construction for providing ultraviolet light irradiation within a confined space. The chamber comprises a plurality of side panel assemblies mounted on a base member and arranged to form a vertically upstanding enclosure of polygonal configuration. Two of the panels are
4048537 Protective ultraviolet-transmitting sleeve for fluorescent lamp September 13, 1977
A protective shield for an ultraviolet-emitting fluorescent lamp comprising a tubular sleeve coaxially surrounding the lamp envelope and formed of a plastic material, such as a fluorocarbon resin of a fluorinated ethylene-propylene, which has a spectral transmittance of at least about


 
 
  Recently Added Patents
Flower holder
Silicide/semiconductor structure and method of fabrication
Network media playout
Storage controller and control method for dynamically accomodating increases and decreases in difference data
Method of fixing a probe needle to a needle fixture of a probe card in semiconductor inspection equipment
Modular uninterruptible power supply
Cantilever driven transduction apparatus
  Randomly Featured Patents
Method and means for the production of gene products, novel recombinant DNA vectors therefor and kits employing them
Surface inspection device and method
Method and apparatus for multiplex addressing of a ferro-electric liquid crystal display
Indwelling heat exchange catheter and method of using same
Isometric exerciser
Connector assembly for connecting walk boards
Pneumatically actuated high power RF switch
Telephone lock box
Open-faced welding rod/stub receptacle
Sofa