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
Account managing device, image processing system, and storage medium
Epoxy composition for encapsulating an optical semiconductor element
Debris tray
Method and apparatus for detection of LVDT core fallout condition
Systems and methods for automated institutional processing of payments
Method of interfacing a host operating through a logical address space with a direct file storage medium
Advocate for facilitating verification for the online presence of an entity
  Randomly Featured Patents
Handheld optics detection system
Method and computing system for creating and displaying images with animated microstructures
Dynamic equilibrium separation, concentration, and mixing apparatus and methods
Thick-walled cable jacket with non-circular cavity cross section
Microwave-core-heating and cooking pasta, pulses, grains and cereals
Semiconductor integrated circuits and efficient parallel test methods
High frequency differential to single-ended converter
Tremolo and tuning apparatus
Selective 5-HT6 receptor ligands
Hard shell box bag with a rounded top shape