Resources Contact Us Home
Recreational device for impelling an object

Image Number 2 for United States Patent #4488723.

A recreational device 10 for impelling an object comprises a generally upright shaft 12 having a lower end 20 and an intermediate part 22; a lever arm 14 having a heel portion 40 and an upper actuation portion 42 pivotally connected to the lower end 20 of the shaft 12; a stabilizing link 24 pivotally connected to the intermediate part 22 of the shaft 12, and a linkage assembly 32 for urging the object forwardly in response to downward movement of the shaft 12, the reaction of the heel portion 40 against a surface, and the forwardly and downwardly swinging of the lever arm 14.

  Recently Added Patents
Multiplexing channels by a medium access controller
Method for maintaining a driver-independent braking intervention after a collision
Image-capturing device and projection automatic calibration method of projection device
Pharmaceutical and diagnostic compositions for use in the treatment and diagnosis of neurodegenerative diseases or amyloid diseases
Mechanisms for marking the orientation of a sawed die
Content display monitor
Metal colloidal particles, metal colloid and use of metal colloid
  Randomly Featured Patents
Apparatus for fusibly interconnecting thermoplastic pipes
Independent wheel suspension system having a differential pivotable about two axes
Switch frame electronic air filter alarming device
Lighting equipment built-in on-line uninterruptible power system capable of outputting AC sinusoidal power from a single DC source
Liquid crystal display capable of compensating common voltage signal thereof
Associating presence information with a digital image
Herbicidal sulfonylureas
Flying disk toy
Sealed lithium-reducible phosphorous oxyhalide cell