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
Subband SNR correction in a frequency selective scheduler
Data distribution apparatus, data distribution method, and distribution control program
Mixture, especially spinning solution
Optical angular position detection apparatus and method
Anti-slip strip for vehicle running boards
Mobile camera localization using depth maps
  Randomly Featured Patents
Structural member and structural systems using structural member
Expandable orthopedic drill for vertebral interbody fusion techniques
Anion exchange process for the purification of Factor VIII
Semiconductor package for three-dimensional mounting, fabrication method thereof, and semiconductor device
Semiconductor memory devices with amorphous silicon alloy
Apparatus for promoting the vigilance of a motor vehicle operator
Reusable press fit connection of a hydraulic power apparatus and method of assembly
Reproduction device, program, and reproduction method
Electronic bubble detector apparatus
Voltage measurement device