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

Icon_funbox Bizarre Patents

Patent No. 6711769

Pillow with retractable umbrella

A pillow assembly having a supporting assembly and a retractable umbrella assembly that is easily transportable and allows a user to support his/her head while covering their face from sunlight.

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 338/33 - Float actuator


Subclass of Class 338 - Electrical resistors
Definition: Subject matter wherein an adjustable resistor is combined
No. of patents: 70
Last issue date: 08/15/2006


1    
NumberTitleIssue Date
7091819Variable resistor card for a fuel level sensor
A variable resistor card for a fuel level sensor includes a first wiper contact area, a first electrically conductive pathway electrically communicated to the first wiper contact area, a second wiper contact area, a second electrically conductive pathway electricall...
08/15/2006
7062966Fuel level sensor
A small profile fuel level sensor has a small float located in a vertically-oriented housing in a fuel tank, and instead of sliding against two resistive strips that output a level signal as fuel level changes, the float is drawn to and rolls against the two strips ...
06/20/2006
7002447Fuel tank resistor card having improved corrosion resistance
A resistor card for a fuel level sensor has improved resistance to corrosion and wear. The resistor card has a substrate with a resistive layer and a conductive layer. A nickel layer covers the conductive layer. A nickel-gold alloy layer covers the nickel layer. The...
02/21/2006
6985067Fuel tank resistor card having improved corrosion resistance
A resistor card for a fuel level sensor has improved resistance to corrosion and wear. The resistor card has a substrate with a resistive layer and a conductive layer. A nickel layer covers the conductive layer. A nickel-gold alloy layer covers the nickel layer. The...
01/10/2006
6985068Fuel tank resistor card having improved corrosion resistance
A resistor card for a fuel level sensor has improved resistance to corrosion and wear. The resistor card has a substrate with a resistive layer and a conductive layer. A nickel layer covers the conductive layer. A nickel-gold alloy layer covers the nickel layer. The...
01/10/2006
6953527Fuel tank with water trap
A fuel tank for use with small internal combustion engines, the fuel tank having an inlet and an outlet and storing a quantity of fuel therein. A hydrophobic barrier is positioned within the fuel tank in flow communication with the outlet, and permits the passage of...
10/11/2005
6941808Drawing and gauging device for a motor vehicle fuel tank
The invention concerns a drawing and gauging device for a motor vehicle fuel tank, characterised in that it comprises two support assemblies (100, 200) mobile relative to each other when the device is being installed on site for use in the motor vehicle and a...
09/13/2005
6828898Fuel tank resistor card having improved corrosion resistance
A resistor card for a fuel level sensor has improved resistance to corrosion and wear. The resistor card has a substrate with a resistive layer and a conductive layer. A nickel layer covers the conductive layer. A nickel-gold alloy layer covers the nickel layer. The...
12/07/2004
6792800Liquid level detecting device
A liquid level detecting device to be disposed in a liquid tank includes a body, a float arm having a float to be disposed in liquid, a resinous arm holder fixed to the body to hold the float arm so that the float arm moves as a level of the liquid changes, a circui...
09/21/2004
6775636Automated testing of hybrid actuator
There is provided a testing apparatus (200) for a hybrid indicator lens and potentiometer actuator (100). The hybrid actuator (100) serves both as a knob for a potentiometer (120) and as a lens to convey light from an indicator arrangemen...
08/10/2004
6508121Filling level sensor
A filling level sensor (2) for a fuel container (1) of a motor vehicle has two lever arms (4, 5). One of the lever arms (4) supports a float (10), while the other lever arm (5) is prestressed against the bottom of the fuel container (1). A detecting devic...
01/21/2003
6369690Potentiometer
A resistor card for a potentiometer to measure the fuel in a fuel tank consists of a non-conductive substrate with a plurality of elongate conductive contacts deposited thereon. The contacts have an elevation above the surface of the substrate and the con...
04/09/2002
6313730Linear sliding variable resistor
A linear sliding variable resistor comprises a case with a through hole; an operating shaft inserted in the through hole and axially movably locked; an insulated board located in the case and having an electrically conductive pattern on the surface thereo...
11/06/2001
6305220Fuel gauging system for a motor vehicle fuel tank
A fuel gauging system for a motor vehicle fuel tank, including a housing (100) supporting a resistive element (200), an arm (300) pivotally mounted on the housing (100) and comprising at least one cursor (350) engaging the resistive element (200), and a l...
10/23/2001
6269695Analog liquid level sensor
Two embodiments of an analog liquid level sensor are provided for measuring the level of a liquid in a container having a volume/depth relationship wherein each sensor has a resistance-to-float-displacement profile matched to the volume/depth relationship...
08/07/2001
6209392Fuel level sensor with miniaturized ceramic resistor card
A fuel level sensor is provided having a contact arm pivotally mounted to a frame adjacent a cam that translates the pivotal motion of the arm into a linear motion so that a contact arm may move linearly across a miniaturized resistor card....
04/03/2001
6176133Fuel sending unit having a fuel filter combined with a fuel float
A fuel sending unit assembly includes a pump for pumping fuel from a storage system to a combustion system, a float for measuring the level of fuel remaining in the storage system, and a filter for preventing debris contained in the fuel from entering the...
01/23/2001
6127916Fuel system low current rheostat
A fuel level indicator system that utilizes a resistor card having an arc-shaped resistive path with a first set of spaced apart conductor lines and an arc-shaped resistive ink material overlying the first set of conductor lines. The first conductor lines...
10/03/2000
6025772Potentiometer
A resistor card for a potentiometer to measure the fuel in a fuel tank consists of a non-conductive substrate with a plurality of elongate conductive contacts deposited. The contacts have an elevation above the surface of the substrate and the contacts ar...
02/15/2000
5746088Fuel system low current rheostat
This invention includes a combustion engine fuel level indication system operable at 10 mA or lower and without any contact resistance buildup. The present system utilizes a noble metal ink formulation for both contacts of resistive path and a conductive ...
05/05/1998
5666851Fuel sender compensation arrangement
A liquid level sender device for measuring a level of a liquid in a tank having a first wall and a bottom wall includes a bracket mounted to the first wall of the tank, a first potentiometer mounted on the bracket, a float arm movably connected to the bra...
09/16/1997
5435181Electronic float gauge
Disclosed herein is an electronic float gauge for indicating the level of liquid in a tank. A float follows the liquid level and causes a rotor that has magnets on it to rotate. Surrounding the magnets, in a concentric array, are a series of reed switches...
07/25/1995
5410913Remote indicating liquid level sensor
For liquid-level sensing in a tank, the invention provides a tank-mounted first subassembly that is adapted for suspension of a vertical guide from the top of the tank, such that a guided float may coact with an elongate vertical ribbon, to angularly disp...
05/02/1995
5374790Liquid level switch assembly
A liquid level switch assembly is provided which can be adjusted as to what liquid level will actuate the switch. A support bracket is mountable to the tank and a float arm is pivotally mounted to the support bracket inside the tank by way of a pivot axle...
12/20/1994
5367907Liquid level indicator
A liquid level indicator comprising a rod (10) of insulating material. The rod is a carrier for two parallel helically wound resistance wires (12, 13) and is surrounded by a float (11) of insulating material displaceable along the rod (10) by variations i...
11/29/1994
5357815Magnetically driven gauge with voltage divider
A gauge assembly (10) utilizing a voltage divider circuit to provide reliable and accurate measurement of a fluid level within a tank (16) or other environment. A pointer assembly (52) pivots about an axis (42) in response to a moving float to indicate th...
10/25/1994
5284055Device for measuring the fuel level in a motor vehicle tank
A device for measuring the level of fuel in a motor vehicle tank, the device being of the type comprising: a float suitable for following the level of the fuel; a lever hinged to a support and carrying the float; and an electrical transducer controlled by...
02/08/1994
5275044Three wire potentiometric liquid level sensor
A three wire potentiometric liquid level sensor for measuring liquid levels in a container is disclosed. The sensor includes a conductive strip, a float, a contact means attached to the float, a resistive strip, and a conductive rod buried beneath an insu...
01/04/1994
5267475Vertical sweep liquid level sensor
A liquid level sensor is disclosed for measuring the amount of fuel remaining in the fuel tank of a motor vehicle. The liquid level sensor comprises a vertically oriented resistor element, a float, and a contact assembly. A conductive strip and a continuo...
12/07/1993
5216919Fuel level sender
A fuel level sender (10) utilized a float (14) pivotally connected to a resistive rheostat (20) for varying a measurement signal in response to pivotal movement of the float (14) and therefore level of liquid in a container (12). The rheostat (20) include...
06/08/1993
5146785Fluid level sensor with stair step output
A two wire and a three wire resistive fluid level sensor for measuring fluid levels within a container are disclosed. The sensor includes a plurality of resistors connected in series. The sensor produces an output signal by providing a short circuit to th...
09/15/1992
5138881Liquid level sensor including conductive plastic technology
A liquid level sensor for sensing liquid levels within a container is disclosed. The sensor includes a conductive plastic resistor and conductive plastic conductors deposited onto a thin polymer insulator. The conductive plastic resistor is a potentiometr...
08/18/1992
5129261Three wire potentiometric liquid level sensor
A three wire potentiometric liquid level sensor for measuring liquid levels in a container is disclosed. The sensor includes a conductive strip, a float, a contact means attached to the float, a resistive strip, and a conductive rod buried beneath an insu...
07/14/1992
5085078Device for measuring fuel level in a motor vehicle tank
A device for measuring the level of fuel in a motor vehicle tank, the device being of the type comprising: a base for fixing to a wall of the tank; a support hinged about a horizontal axis to the portion of the base inside the tank; a shoe carried at the ...
02/04/1992
5070731Device for measuring the level of liquid contained in a substantially deep reservoir
Disclosed is a device for the measurement of the level or volume of a liquid contained in a reservoir of the type comprising a casing that houses an element defining two generally vertical, separate, electrical tracks, at least one of which is electricall...
12/10/1991
5020366Liquid level sensor
Liquid level sensor comprising a rod (2) on which a first (4) and a second (5) resistance wire are wound helically and parallel, a float (3) which is displaceable along the rod and which comprises a contact element which has a first (11) and a seond (12) ...
06/04/1991
4951506Rolling contact ohmic resistance position sensor
The position sensor of the present invention includes a pair of elongated conducting members disposed in a parallel arrangement and a conducting metallic ball or mercury drop freely movable following the pair of elongated conducting members while maintain...
08/28/1990
4939932Level measuring device
A level measuring device for measuring the level of a liquid in a container. The device has an elongated support which extends approximately horizontally into the container and is fastened at a fastening end 6 to a wall 3 of the container while its other ...
07/10/1990
4931764Low wear resistor card for use in a liquid fuel sender circuit
A resistor card for a fuel tank level sensor configured to reduce wear between an electrical contact wiper and metalized conductor pads formed on a substrate, by the deposition of thick film resistive material on the individual pads. The resistive materia...
06/05/1990
4928526Universal fuel sender
A universal fuel sender where critical dimensions are determined at final assembly including a circular support rod carrying an adjustable rheostat bracket with the radius of a float arm assembly being selectable when attached to the rheostat....
05/29/1990
1    
 
Sign InRegister
Username  
Password   
forgot password?