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
Power converter with a variable reference voltage and inrush current limiting
Method and system for fail-safe call survival
Wallet
Isolation rings for blocking the interface between package components and the respective molding compound
Controller
Device having built-in digital data device and light for insertion into a lamp holder
Battery loading and unloading mechanism
  Randomly Featured Patents
Method for assembling a circuit board apparatus with pin connectors
Disk reproducing speed control method and a disk reproducing apparatus using this method
Electrically alterable memory cell
Heating system having solar assist
Blood vessel occlusion auger
Method of controlling the performance of a data storage system
Curable resin, production method thereof, epoxy resin composition, and electronic device
Antibody identifying an antigen-bound antibody and an antigen-unbound antibody, and method for preparing the same
Output impedance compensation circuit
Arrangement for controlling light emitting diodes