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
Adaptive frame scanning scheme for pulsed X-ray imaging
Method and system for providing complete internet anywhere with partial server processing
Mobile communication method, mobile station, and network device
Calibration device and related method for phase difference between data and clock
Polyfunctional sulfur-containing epoxies and compositions thereof
Network based JIT on a priori knowledge of a set of disparate clients
Light powered hearing aid
  Randomly Featured Patents
Two-beam colorimeter
Method, apparatus, and program for detecting tire having decreased air pressure
Compositions and methods for treatment of irritable bowel syndrome and nonulcer dyspepsia
Bank note conveying apparatus
Vasomolol: an ultra short-acting and vasodilatory vanilloid type .beta..sub. - adrenoceptor antagonist
2,7-carbazolenevinylene derivatives as novel materials in producing organic based electronic devices
Device and method for compressing wounds
Dimension reduction using association rules for data mining application
Apparatus and method for manipulating foodstuffs to reduce microbe content
Pressure controlled engine cooling system