U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5421089

Fork With Timer

A fork with timer for providing a cue to a user after an elapsed period of time for indicating that another bite of food using the fork may be taken.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class D12/306 - Paddle wheel or crank driven


Subclass of Class D12 - Transportation
No. of patents: 14
Last issue date: 06/12/2007


NumberTitleIssue Date
D544429Paddle wheel boat
06/12/2007
D539209Water-borne craft
03/27/2007
7070466Swimmers paddle wheel
A swimmers paddle wheel (10) that utilizes a crankshaft (20) with a pair of ends (22,24) containing crank arms (28). Each crank arm (28) is out of angular alignment relative to each other, and each crank arm includes a handle grip ...
07/04/2006
5427554Recreational water craft
A recreational water craft of uncomplicated design and construction is provided herein which is adaptive to be manually powered by one or more crew members or readily converted from manual power to sail (or supplement by sail) without loss of stability or...
06/27/1995
5374206Pedal operated watercraft
The improved watercraft of the instant invention includes design advantages such as solidly connected arm drive handles to augment power from the drive pedals; a fully pivoting drive assembly which pivots along with the steering mechanism; an angularly pi...
12/20/1994
5183422Pedal boat
A pedal boat for recreational use includes an inflatable ring on top of which is mounted a platform structure carrying a seat, pedals and a steering mechanism. The pedals drive a shaft mounted diametrically of the ring and carrying paddles. The steering a...
02/02/1993
5127855Water-borne vehicle
A water-borne vehicle with floats, a frame which is mounted on the floats providing a seat and a steering mechanism, and a propulsion means for propelling the vehicle in the water. The propulsion means comprises a plate which is generally parallel to the ...
07/07/1992
4968274Pedal operated watercraft
The watercraft has a catamaran hull system with parallel rear pontoons pivoted for side to side oscillation from the trailing end of front pontoons. A rigid frame interconnects the front portions, and back support post is pivoted to both the frame and to ...
11/06/1990
4936801Bicycle watercraft assembly
A bicycle operated watercraft assembly is disclosed. A bicycle is mounted on a main framework including front and rear outrigger arms to which are secured a pair of laterally spaced floats. The front wheel of the bicycle is disposed in a rotatable channel...
06/26/1990
4772237Paddle boat
The present invention provides a paddle boat having a hull and a closed loop flexible member which is rotatably mounted to the hull while a pedal assembly longitudinally drives the flexible member around its loop. A plurality of substantially planar paddl...
09/20/1988
4698033Recreational watercraft
A manually propelled personal watecraft has a nose portion (12) of rigid, thin plastic material and a frame assembly (14) extending rearwardly therefrom. An inflatable body portion (16) is fastened to the frame assembly. Stabilizers including keel fins (3...
10/06/1987
4698034Water bicycle
A water bicycle comprising two relatively parallel, elongated floating bodies and a frame supported by said floating bodies provided with a seat whereby each of the floating bodies is provided with a frame part supported by the associated floating body an...
10/06/1987
4376420Inflatable boat including a mechanical propulsion assembly for operation by a user
An inflatable boat includes a mechanical propulsion assembly operable by the legs of the user. The inflatable boat has three independent air chambers inflatable to give the boat an operative fork shape. A throw-like shaft mounted in bushes on the branches...
03/15/1983
4318700Paddle wheel operated watercraft
A watercraft has two pontoons interconnected by framework which supports a propelling unit adjacent its bow end. The unit includes a paddle wheel between the two pontoons with exposed pedals to be engaged by the feet of a seated occupant. A rudder is atta...
03/09/1982
 
Sign InRegister
Username  
Password   
forgot password?