Patents Assigned to Solid Well International Corp.
  • Patent number: 4920609
    Abstract: A door closer is set forth having a housing, a plunger rod in the housing with a plunger at the inner end of the rod, and a main spring around the rod between the plunger and a housing end for urging the rod into the housing. An actuator carried at the housing end with an opening for the rod and mounted for transverse sliding motion relative to the rod, with a spring for urging the actuator into a latch space in the rod is utilized. With the door closer connected to a door, the actuator slides into the latch space when the door has been opened, to hold the door open. A further opening movement raises the actuator out of the latch space and a sleeve maintains the actuator raised, permitting closing of the door.
    Type: Grant
    Filed: July 24, 1989
    Date of Patent: May 1, 1990
    Assignee: Solid Well International Corp.
    Inventor: Chun-Hsien Lin