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
Benzimidazole inhibition of biofilm formation
Data security for dynamic random access memory using body bias to clear data at power-up
Reliability fire pressure switch
Method for implementing dynamic pseudorandom keyboard remapping
Position detection device, pointing device and input device
Intelligent and automated code deployment
Complete context search system
  Randomly Featured Patents
Crutch
Vacuum smelting process for producing ferrotungsten
Printed circuit board guide spring
Casing for optical transceiver module
Patient sensory response evaluation for neuromodulation efficacy rating
Method of inhibiting protein tyrosine phosphatase 1B and/or T-cell protein tyrosine phosphatase 4 and/or other PTPases with an Asp residue at position 48
Selective call receiver
Weather resistant cover for welding rod box
Metal wood club
Recording device