Resources Contact Us Home
Automatic sliding door closure device

Image Number 11 for United States Patent #7124469.

An automatic sliding door closure device for use with a sliding door on a track. The device comprises a housing attached to the door having a connecting arm attached to the housing. A pulley rotatably mounted within the housing guides a cable having an exterior end attached to the doorframe and an interior end connected to the gear, rotating the gear when the sliding door is slid along the track. A spring engaged with the gear tensions rotation of the gear as the door is moved. An airtight cylinder parallel with the track has a plunger arm connected to the connecting arm that is drawn within the cylinder as the door is moved. A flexible member connected to the plunger arm creates an air cushion within the cylinder. An airflow control valve controls intake and outlet of air into the airtight cylinder controlling the closure speed of the door.

  Recently Added Patents
Software execution management apparatus, method, and computer-readable medium thereof
Notebook computer
DNA promoters and anthrax vaccines
Austenitic stainless steel welding wire and welding structure
Method and computed tomography device and data storage medium for performing a dynamic CT examination on a patient
Method of manufacturing crystalline silicon solar cells with improved surface passivation
Printed wiring board with reinforced insulation layer and manufacturing method thereof
  Randomly Featured Patents
5"-Amino-3',5"-dideoxybutirosin A and derivatives
Lock generator circuit for use with a dual edge register that provides a separate enable for each use of an input clock signal
System and method for multi-protocol radio-frequency identification
Method and apparatus for high speed processing of fruit or the like
Fiber compound material
Flexible counter update and retrieval
Semiconductor package
Power-on detector, operating method of power-on detector and memory device including the same
Process and plant for the separation of undesirable substances from alimentary liquids, in particular from wine
Epoxy resin composition for fiber-reinforced composite material prepreg, and fiber-reinforced composite material