Patents Assigned to Aladdin Engineering & Mfg
  • Locking valve and flow control valve assembly
    Patent number: 5081904
    Abstract: A locking valve for selectively locking fluid pressure in a fluid cylinder in the event of failure of the source of fluid pressure to the cylinder and including an integral fluid flow control valve, the locking valve also including a fluid pressure seal between the fluid supply port and the pilot port of the locking valve to prevent back pressure on the pilot pressure operated valve components.
    Type: Grant
    Filed: September 25, 1990
    Date of Patent: January 21, 1992
    Assignee: Aladdin Engineering & Mfg., Inc.
    Inventors: Edward R. Horn, Derek Hopkinson, Michael C. Allen
  • Pneumatic locking valve with manual override
    Patent number: 4838306
    Abstract: A locking valve assembly for use with air cylinder and in pneumatic circuits and including a locking valve for selectively locking air pressure in the air cylinder. The locking valve is pilot operated to provide for release of air pressure from the air cylinder and also includes a manual override apparatus for providing for release of the locking valve in the absence of pilot pressure.
    Type: Grant
    Filed: August 10, 1987
    Date of Patent: June 13, 1989
    Assignee: Aladdin Engineering & Mfg., Inc.
    Inventors: Edward R. Horn, Derek Hopkinson
  • Fluid operated clamping device including fluid pressure locking means
    Patent number: 4838532
    Abstract: Apparatus for gripping a workpiece including a pneumatic cylinder assembly having a locking valve for selectively locking air in the pneumatic cylinder to thereby maintain the gripping apparatus in clamped engagement with a workpiece.
    Type: Grant
    Filed: October 6, 1988
    Date of Patent: June 13, 1989
    Assignee: Aladdin Engineering & Mfg., Inc.
    Inventors: Edward R. Horn, Derek Hopkinson
  • Mechanical toggle clamp with means for applying uniform clamping force
    Patent number: 4679782
    Abstract: A mechanical clamp for releaseably clamping a workpiece against a supporting surface. The clamp engages workpieces of differing thickness without adjustment and applies substantially uniform clamping force on the workpieces despite differences in thickness of the workpieces.
    Type: Grant
    Filed: November 27, 1985
    Date of Patent: July 14, 1987
    Assignee: Aladdin Engineering & Mfg
    Inventors: Edward R. Horn, Norbert J. Kot, II
  • Pneumatic mechanical clamp including locking means
    Patent number: 4576367
    Abstract: A mechanical clamp for releaseably clamping a workpiece against a supporting surface. The clamp includes means for releaseably locking the clamping member in a clamping position without use of an overcenter movement of the clamp toggle links.
    Type: Grant
    Filed: January 2, 1985
    Date of Patent: March 18, 1986
    Assignee: Aladdin Engineering & Mfg. Co.
    Inventors: Edward R. Horn, Norbert J. Kot, II