Resources Contact Us Home
Browse by Category: Main > Construction
Class Information
Number: 14/46
Name: Bridges > Draw > Locking devices
Description: Devices for positively locking drawbridges against movement.

Patents under this class:

Patent Number Title Of Patent Date Issued
8590086 Wear resisting span lock system Nov. 26, 2013
6701562 Span lock with centering guide Mar. 9, 2004
6588041 Pre-load adjustment for span lock system Jul. 8, 2003
5327605 Energy-absorbing span lock system for drawbridges Jul. 12, 1994

  Recently Added Patents
Optical receiver and optical transfer apparatus
Check weigher comprising of a rotating weighing chute with an accumulating and a discharge position that calculates flow rate by measuring weight accumulated during a predetermined time interv
Complete context search system
Storage system, control method therefor, and program
Preserving and handling native data in hybrid object trees
Lentiviral gene transfer vectors and their medicinal applications
Method of hydrothermal liquid phase sintering of ceramic materials and products derived therefrom
  Randomly Featured Patents
Vehicle navigation system and method using multiple axes accelerometer
Method and apparatus for processing and/or inspecting pellet-shaped articles
Enclosure for server blades
Spinning apparatus
Bidirectional optical space switch
Carriage mount for an ink jet cartridge
Welding guide
Process for preparing rigid and flexible polyurethane foams
Injection molded sliding vane pump
Marking instrument