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
System and method of creating and providing SMS http tagging
Digital media content distribution
Television with a stand
Light fixture
Information recording medium and information processing method for accessing content with license or copyright protection
Pausing a VoiceXML dialog of a multimodal application
Radio communication device and sequence length adjusting method
  Randomly Featured Patents
Calendering apparatus
In-line roller skates with braking device
Oil and air lubrication device
Systems and methods for remotely collaborative vehicles
Method and apparatus for awarding component prizes in a gaming environment
Surgical device for retrieval of foreign objects from a body
High resolution DMD projection system
Apparatus for removing ions from an ionized liquid
Radio antenna
Elastic rope-type abdominal exerciser