Resources Contact Us Home
Browse by Category: Main > Entertainment & Recreation
Class Information
Number: 472/23
Name: Amusement devices > Roundabout > Occupant propelled > By roundabout mounted drive structure used to maintain motion > Ratchet
Description: Subject matter wherein the force transmitting member is a toothed wheel which interacts with a cooperating pawl engaging element.

Patents under this class:

Patent Number Title Of Patent Date Issued
7252271 Play apparatus Aug. 7, 2007
5330390 Rider propelled roundabout Jul. 19, 1994
4245837 Occupant propelled rotary conveyor Jan. 20, 1981
4119310 Playground turntable Oct. 10, 1978
4045020 Occupant-propelled round about Aug. 30, 1977

  Recently Added Patents
Optical article including an antireflecting coating having antifog properties and process for making same
RFID reader revocation checking using low power attached displays
Supplier capability methods, systems, and apparatuses for extended commerce
Catalysts for polyurethane coating compounds
Method and system for modularized configurable connector system for ethernet applications
Method and apparatus for band switching in wireless local access network
Portable reading device with mode processing
  Randomly Featured Patents
All reflective apparatus for injecting excitation light and collecting in-elastically scattered light from a sample
Digitizing documents
Method for the optical detection of objects, whose surfaces can reflect or scatter light and which have self-affine, or self-similar, or fractal patterns or structures
Apparatus and method for operating multiple operating systems in multi-modem mobile communication terminal
Intravascular radiation delivery device
Method of producing cast coated paper using near-infrared radiation
Switch plate
Data carrier module device having integrated circuit and transmission coil connection contacts covered by a common protective cap
Virtual wireless multitrack recording system
Regulator with error amplifier having low voltage and high voltage transistors