Resources Contact Us Home
Lock using air chambers

Image Number 12 for United States Patent #5013184.

A lock using lock chambers and lock gates capable of reducing the water consumption in the operations of raising or lowering the boat passing through the lock from one level to another. The lock includes flexible air chambers capable of being inflated with air, located on bases of the lock chambers which are connected by a pipe equipped with a valve for controlling a flow of air between the air chambers.

  Recently Added Patents
Liquid crystal display backlight control
Storage system with LU-setting function
Image forming apparatus and job request control method instructed by authenticated users
Method and system for Bluetooth low power link layer connection setup
Testing SQL query writing skills
Selective high frequency spinal cord modulation for inhibiting pain with reduced side effects, and associated systems and methods
Systems and methods for automated institutional processing of payments
  Randomly Featured Patents
Topical application for relief of adverse skin condition for animals
Polyamines as adjuvant for liquid electrostatic developers
Internal electronic mail within a collaborative communication system
Method and apparatus for determining the strengths and weaknesses of paths in an integrated circuit
Contact surrounded by passivation and polymide and method therefor
Facet reflectance correction in a polygon scanner
Probing apparatus with multiaxial stages for testing semiconductor devices
Printhead error compensation
Light actuated shooting arcade game
System for denitrification of treated water from aerobic wastewater treatment systems