Patents Assigned to Philadelphia Control Systems, Inc.
  • Patent number: 4911198
    Abstract: The securing system includes a device and a method for securing a valve assembly in either an open or closed operational position. The automatically operated valve assembly opens and closes a transmission line to flow upon rotation of a rotatable shaft member. The valve assembly is connected to receive remotely transmitted control signals for operating the rotatable shaft member. A flattened circumferential section is located on the rotatable shaft and a locking clip member includes a flattened surface section. The shaft member is externally accessible by the manually operated locking clip which fits around the rotatable shaft in a stationary locking position where the flattened circumferential section is contiguously disposed against the flattened surface section of the locking clip element. An anchoring mechanism secures the locking clip element in the stationary locking position so that the rotation of the shaft member is prevented.
    Type: Grant
    Filed: July 10, 1989
    Date of Patent: March 27, 1990
    Assignee: Philadelphia Control Systems, Inc.
    Inventor: Charles P. Kerin, Jr.