Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
System and method for conditioning a diaphragm of a patient
Save preview representation of files being created
Image forming method
Thin-film photoelectric conversion device and method for production thereof
Digital driving circuits, methods and systems for liquid crystal display devices
Display element having a lens being formed as part of a translucent support substrate having a display disposed thereon
TCP extension and variants for handling heterogeneous applications
  Randomly Featured Patents
Developing method
Fitting for smooth wall tubes
High speed low power input buffer
Refuse compaction method
Complementary modulation-doped field-effect transistors
Apparatus for cleaning and polishing a surface
Valve and fueling strategy for operating a controlled auto-ignition four-stroke internal combustion engine
Write operations for phase-change-material memory
Electronic game board for bingo
Systems and methods for data transformation using higher order learning