Resources Contact Us Home
Browse by Category: Main > Transportation & Automotive
Class Information
Number: 188/61
Name: Brakes > Vehicle > Railway > One-way
Description: Brakes designed to prevent retrograde motion.

Patents under this class:

Patent Number Title Of Patent Date Issued
6164602 Railroad frog assembly with multi-position holdback Dec. 26, 2000
4326466 Anti-back up device for conveyor trolley Apr. 27, 1982
4296842 Pawl and ratchet mechanism Oct. 27, 1981

  Recently Added Patents
Display for displaying three-dimensional images and method for displaying three-dimensional images
X-ray imaging
Contact lens material
Method for automatically estimating inertia in a mechanical system
Treatment devices with deliver-activated inflatable members, and associated systems and methods for treating the spinal cord and other tissues
Processor micro-architecture for compute, save or restore multiple registers, devices, systems, methods and processes of manufacture
Magnesium metal-air battery
  Randomly Featured Patents
Material handling device with level indicator
Trailer side wind deflecting system
Print head control for subscript and superscript correction
Method and system for providing online records
Propylene/polystyrene composition and method for coating
Method for determining the quality of a professional
Pressurized forming board
Cleaning tool sheet and cleaning tool
Methods and apparatus for indicating a location
Valve of direct passage type which is responsive to fluid pressure