Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Perkins; Willis E.
Address:
Dallas, TX
No. of patents:
1
Patents:












Patent Number Title Of Patent Date Issued
3999750 Artificial snowfall producing apparatus December 28, 1976
An artificial snow machine for display purposes includes a cylindrical container having an inverted conically shaped bottom. High pressure air is admitted to the interior of the container through a port at the apex of the cone to pressurize the container. A motor driven fan is mounted on










 
 
  Recently Added Patents
Two dimensional magnetic sensor immune to skew angle misalignment
Electric washing machine
Disc shaped high density recording medium
Method for operation of multi-layer-multi-turn high efficiency inductors
Method, apparatus and computer program product for visualizing whole streets based on imagery generated from panoramic street views
Amplitude-shift-keying (ASK) envelope detector and demodulation circuits
Integrated emergency medical database system
  Randomly Featured Patents
Apparatus for separating phosphorus furnace slag and ferrophosphorus from one another
Stabilized polyoxymethylene compositions
Beamforming codebook generation system and associated methods
Sewing machine bobbin and mini-spool rotatably mounted thereon
Mapping radio-frequency noise in an ultra-wideband communication system
Traffic-signaling system
Electrical card connector having guiding member
IC card having means for protecting erroneous operation
Mounting apparatus for power supply
Antenna unit having electrically steerable transmit and receive beams