Resources Contact Us Home
Browse by Category: Main > Optical & Optics
Class Information
Number: 362/22
Name: Illumination > With filament control means responsive to fracture of light source envelope or enclosure > Fluid or pressure responsive
Description: Subject matter having an enclosure which is sealed and a fluid within the enclosure and wherein the means to disconnect the filament from its source of electrical energy etc. includes a switch and wherein the enclosure, the fluid and the switch are so interrelated that a break in the enclosure either (1) changes the amount of fluid in the enclosure to open the switch, or (2) changes the pressure of the fluid in the enclosure to open the switch and thus open the circuit to the filament.

Patents under this class:

Patent Number Title Of Patent Date Issued
6315424 Underwater safety lighting device for swimming pools Nov. 13, 2001
5578905 Flow-responsive air purged portable electric lamp Nov. 26, 1996
5519587 Air purged portable electric lamp May. 21, 1996
5140216 Explosion proof lamp with liquid extinguishant Aug. 18, 1992
5068720 Video inspection system for hazardous environments Nov. 26, 1991
4961111 Video inspection system for hazardous environments Oct. 2, 1990
4375315 Arc lamp illuminator Mar. 1, 1983
4276580 Pressure actuated electrical system Jun. 30, 1981
4275433 Lighting fitting Jun. 23, 1981

  Recently Added Patents
Variety corn line NPAA2675
Buck converter having reduced ripple under a light load
Input device with photodetector pairs
Scattering spectroscopy employing hotspot-aligned nanopores
Irreversible thermochromic ink compositions
Image forming apparatus, control method and computer-readable medium for stopping a print job during printing by a printer
Method and system for scaling usage of a social based application on an online social network
  Randomly Featured Patents
Methods and systems for improving optical flatness in a path length control driver
2-Oxabicyclooctane derivatives in augmenting or enhancing the aroma or taste of foodstuffs
Double-headed piston type compressor
Passive electro-optic display cell
Hydraulic actuating and locking device
Frame construction method, frame construction device and data transfer system capable of accommodating STM traffic and best effort traffic in common frame format
Gardening vehicle such as a lawn-mower or the like
Arcuate display stand
Vehicle lamp device supporting structure
System and method for characterizing color separation misregistration