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 418/40 - SPEED CONTROLLED


Subclass of Class 418 - Rotary expansible chamber devices
Definition: Apparatus in which means responsive to the speed of rotation
No. of patents: 7
Last issue date: 06/27/2006


NumberTitleIssue Date
7067184Table or counter mat
A table or counter mat having a composite sheet structure comprising a non-slip backing layer 3, a top liquid absorbent textile surface 1 for resting cups, mugs or glasses, and an intermediate stabilisation layer 2 joining the backing layer 3...
06/27/2006
6722867Rotary compressor for vehicle
A rotary compressor includes a rotor rotatably disposed to be eccentric to an inner peripheral surface of a housing, a rotation shaft for transmitting rotation force of an engine to the rotor, and a connection member through which the rotation shaft is connected to ...
04/20/2004
5727933Pump and flow sensor combination
A pump for use in additive systems such as foam chemical additive systems for fire fighting water, the pump including impeller elements and flow meter elements in a common casing. The pump casing provides a gear pump arrangement using two enmeshed gears o...
03/17/1998
5112204Oscillatory rotating engines with rotor speed control
An oscillatory rotating engine has a pair of rotors each defining a pair of diametrically opposed radially extending lobes, the rotors are mounted for rotation within a cylindrical housing and sealingly engage the walls of the cylindrical housing to defin...
05/12/1992
4557674Flow sensing speed control for pressure fluid motor
A rotary vane air or gas motor is provided with a primary exhaust port having an exhaust fluid throttling valve therein for controlling motor speed. The motor includes a secondary exhaust port for discharging exhaust fluid flow from the motor expansible c...
12/10/1985
4247263Pump assembly incorporating vane pump and impeller
A fuel pump assembly for supplying fuel to a gas turbine engine has a centrifugal pump, including an impeller, that furnishes the necessary pressure for engine operation at high engine speeds. A vane pump, attached to the back side of the impeller of the ...
01/27/1981
3945757Turbine type air motor
A turbine type air motor including a rotor and driven spindle having automatic speed regulation. The spindle and rotor have cooperating ports to control the flow of air to the rotor, and the spindle has provision for limited twisting movement within the r...
03/23/1976
 
Sign InRegister
Username  
Password   
forgot password?