Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Revolving Door Control, Inc. Patents
Assignee:
Revolving Door Control, Inc.
Address:
Claremont, CA
No. of patents:
1
Patents:












Patent Number Title Of Patent Date Issued
5012455 Security door with improved sensor for detecting unauthorized passage April 30, 1991
A control system for a revolving door includes an ultrasonic sensor having multiple sensor heads. The door has a housing, and multiple moveable compartments formed by door wings attached to and radially extending from a rotatable axis. The sensors emit energy waves into the housing in

 
 
  Recently Added Patents
Generating network topology parameters and monitoring a communications network domain
Split-ring resonator creating a photonic metamaterial
Antennas and their coupling characteristics for wireless power transfer via magnetic coupling
Adaptive period network session reservation
Architectural panel with millet and grass
Aperture stop
Zoom lens
  Randomly Featured Patents
Driving circuit for exothermic resistors
Input/output systems and methods
System and method for anchoring fiber optic cables to provide strain relief
Golf putting practicing aid
Optical imaging lens assembly
Multichannel evaporator with flow mixing manifold
Instrument system for pedicle screws
Process for preparing compounds containing a fused bicyclic ring
Inner magnetic shield and cathode-ray tube
Airline traffic modeling and allocation systems