Resources Contact Us Home
Compound barrier mechanism for passageway control

Image Number 12 for United States Patent #8127492.

A barrier mechanism for providing selective access to a passageway on the floor of a lobby, room or pavilion. It utilizes a frame and carriage assembly thereon, a panel which is swivelable to selectively overlie and block the passageway, and an electric motor which powers the carriage assembly and moves the panel. A group of power components, including a driver operated by the motor and other linkages on the frame, provide simultaneous translating movement of the carriage assembly and panel and swiveling of the panel, synchronized to bring about a "wrap-around" effect to the latter. Optionally, the panel can be locked in either its blocking or its access position. Important safety features are incorporated in the mechanism, to prevent inadvertent injury to passageway personnel.

  Recently Added Patents
White light emitting diode (LED) lighting device
Liquid crystal shutter glasses
Acrylic pressure-sensitive adhesive composition, acrylic pressure-sensitive adhesive layer, and acrylic pressure-sensitive adhesive tape
Apparatus and method for controlling semiconductor die warpage
Laser protection polymeric materials
Lightning-protective explosion-preventive fastener
Simultaneous image distribution and archiving
  Randomly Featured Patents
Liquid-propelled scoring game
Separable mitten
Process for purification of ortho-chlorotoluene
Multi-parameter infection monitoring
Method for preventing diarrhea
Process for manufacture of a 4-bromo-2-oxyimino butyric acid and its derivatives
Pharmaceutical compositions and dietary soybean food products for the prevention of osteoporosis
Outlet attachment system
Single-piece air cylinder for a fluid coupling device
Adaptive multi-tier authentication system