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
Can seam inspection
Power supply system for motor vehicle
Biomarker for Barrett's Oesophagus
MOS resistor apparatus and methods
Fixture for camera attachments
Configurable memory controller/memory module communication system
Method and apparatus for coordinating hopping of resources in wireless communication systems
  Randomly Featured Patents
Electronic component mounting apparatus
Active matrix-addressed picture display device
Spectacles having a frame formed by an elongated cylindrical element comprising deformable bellows
Clocking scheme and charge transfer switch for increasing the efficiency of a charge pump or other circuit
Product display
Mutant IGFBP-3 molecules that do not bind to IGFS, but retain their ability to functionally bind IGFBP-3 receptor
Table lamp
Casing for a watch
Record control apparatus and recording apparatus
Electrical multimeter