Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Apparatus and methods for color displays
Device and method for adjusting a chrominance signal based on an edge strength
Circuit board and display panel assembly having the same
Reception method and reception apparatus
Alterable account number
Processes for producing polyunsaturated fatty acids in transgenic organisms
Multi-dimensional tuple support in rule engines
  Randomly Featured Patents
Automatic cleaning device for toilet seats
Reconfigurable eyewear apparatus for headwear visor
Flow computer calibration technique
Thermal testing of ceramic components using a thermal gradient
Valve for supplying, controlling and taking out a medium contained in an implanted container
Roller cone rock bit having improved cutter gauge face surface compacts and a method of construction
Coffeemaker
Positive control intravenous fluid administration
Exterior protective layer for an electrical component
Belt mounting jig