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
Image processing apparatus, image processing system, and image processing method
Therapeutic vitamin D sun-protecting formulations and methods for their use
Polyamide compositions
Cantilever of scanning probe microscope and method for manufacturing the same, method for inspecting thermal assist type magnetic head device and its apparatus
Method and computed tomography device and data storage medium for performing a dynamic CT examination on a patient
Wire catalyst for hydrogenation/dehydrogenation reaction and manufacturing method therefor
  Randomly Featured Patents
Mounting means
Computer method and apparatus for grapheme-to-phoneme rule-set-generation
Inkjet printhead having compact inkjet nozzles
Integrated system for quickly and accurately imaging and modeling three-dimensional objects
Amorphous magnetic alloy
Electroluminescent devices and displays with integrally fabricated address and logic devices fabricated by printing or weaving
Method and apparatus for wind speed and direction measurement
Bit line precharge voltage generation circuit for semiconductor memory apparatus
Prodrugs with enhanced penetration into cells
Colorized weather satellite converter