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Patent No. 6718554

Hands free towel carrying system

A hands free towel carrying system for coupling a towel to a user to prevent loss, theft or contamination.

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Class 33/378 - Float or piston


Subclass of Class 33 - Geometrical instruments
Definition: Device wherein an element is supported by the liquid, the
No. of patents: 23
Last issue date: 03/27/2007


NumberTitleIssue Date
7194814Self-balancing, no-spin magnet compass
A self-balancing, no-spin magnetic compass. A described embodiment includes a compass card assembly, a retainer assembly, a pivot assembly, a gimbal assembly, a cup, and a dome. The compass card assembly includes an air chamber which provides buoyancy. The retainer ...
03/27/2007
7187164Apparatus for calibrating a probe station
An apparatus for calibrating a probe station includes a disk having a flat bottom surface, a plurality of thermosensors for measuring a temperature of a wafer chuck of the probe station, the plurality of thermosensors being disposed at predetermined positions on a t...
03/06/2007
5509209Laser plumbing device
In a projected light plumb device which is buoyantly supported within a fluid-filled container on a float platform which is horizontally supported by the fluid, an improvement wherein the float platform is inclined upwardly from its outer diameter to its ...
04/23/1996
5467532Hedge trimmer aid
A hedge trimmer aid including a reference indicator similar to a bubble level wherein an included air bubble is replaced by a small sphere of lower density than a surrounding fluid provides a true horizontal reference, an adjustable pointer with magnifier...
11/21/1995
5184406Projected light plumb device
The present invention relates to projected light plumb device generally utilized in vertically aligning a floor position with a corresponding ceiling position in which a light projecting device is buoyantly supported within a fluid filled container. The l...
02/09/1993
5111188Electronic fluid-level sensor with three state indicator
The invention is an electronic sensor for producing an indication of fluid level in a hose or tube and an electronic indicating circuit that uses the sensor's indication of fluid level for asserting one of three indicators depending upon whether the fluid...
05/05/1992
5088204Level sensing unit and a level indicating device based thereon
A level sensing unit, designed to be incorporated in a carpenter's level, is relatively insensitive to the expansion and contraction of the buoyant fluid, independent of the specific gravity of the fluid, and virtually free of oscillations accompanying a ...
02/18/1992
5031081Headlamp for power vehicle
A headlamp for a power vehicle comprises a reflector mountable in a chassis and turnable for adjusting its inclination, a water level provided on the reflector for controlling its inclination, the water level having adjusting marks and being displaceable ...
07/09/1991
4943158Sensor controlled leveling device
A sensor controlled leveling device comprises an attitude detector and/or a laser sensor. In order to create a sensor controlled leveling device with which a desired relative attitude may be automatically set and held the attitude detector has a float whi...
07/24/1990
4914823Float biased level apparatus
A level for determining whether a surface is horizontal and which can also be used to determine the angular relationship between the surface or a line on the surface and the horizontal. The level utilizes a rotating pendulum designed with a pointer that i...
04/10/1990
4897824Sonar systems
A sonar system for a water craft including a transducer assembly mounted to the hull of the water craft, and a control circuit for applying signals to the transducer for forward transmission by the transducer and for sensing signals reflected from objects...
01/30/1990
4876799Level sensing unit and a level indicating device thereon
A level sensing unit, designed to be incorporated in a carpenter's level, is relatively insensitive to the expansion and contraction of the buoyant fluid, independent of the specific gravity of the fluid, and virtually free of oscillations accompanying a ...
10/31/1989
4791730Direction sensing device
A fluxgate compass direction sensor in which a fluxgate is mounted relative to a receptacle by means of a flexible circuit. The fluxgate is also suspended in a liquid by means of a float. In use, if the receptacle tilts relative to the horizontal, the lev...
12/20/1988
4685218Level sensing unit and a level indicating device based thereon
There is described a level sensing unit which is simple to operate, rugged in construction, sensitive to angular deviations of about 4 minutes 30 seconds, relatively inexpensive to construct, and very reliable. The unit is a sealed housing containing two ...
08/11/1987
4590681Level based on moire effect with ambient light
A level comprises a sealed casing which holds a liquid and has a flat bottom end. It also includes a light admissive top section, bearing a periodic grating of alternating transparent and opaque stripes. A float is in the liquid inside a compartment of th...
05/27/1986
4543730Liquid level indicator for a tilted container
A liquid level indicator for use in a tubular container having a central obstruction with clearance space between the obstruction and the container, the indicator characterized by an elongated float arm having opposite ends located on opposite sides of th...
10/01/1985
4488431Wind speed and direction indicator and electric current generating means
This invention relates to a wind direction indicator spherically rotatable about a liquid supported poly axial magnetic compass. The wind direction indicator determines the wind direction without any pivotal support. The wind direction structure is orient...
12/18/1984
4471535Four way utility level
An improved four way utility level, including a flat plate having a protractor engraved on one side, and a leveling unit mounted thereupon that includes a rotatable bubble assembly toothed to a gear which is toothed to a gear formed on a pivotable handle....
09/18/1984
4435907Machine body inclination detector device
A machine body inclination detector device for detecting change in position of a float with respect to a machine body according to the inclination of the machine body. The float is constructed such that the buoyancy of the float does not undergo a great c...
03/13/1984
4432284Mobile ballast cleaning machine
A mobile ballast cleaning machine mounted on a track for movement in an operating direction incorporates apparatus for continuously measuring parameters indicating the track position and any changes therein with respect to a reference system caused by bal...
02/21/1984
4384410Precision hydrostatic levelling system
There is disclosed a hydrostatic leveling system including a pair of indicator heads connected by a liquid hose for equilizing static pressure in the liquid mercury pools of the indicator heads and a gas hose for equalizing the gas or vapor pressure withi...
05/24/1983
4096638Pendulum
A support body is provided defining a first pair of sides, a circular recess in the body opening outwardly of the first pair of sides and a second pair of sides for abutting against a surface whose orientation relative to the horizontal is to be measured....
06/27/1978
4024823Automatic blade angle controller system
An automatic blade angle controller system capable of maintaining a blade an earth-working tool level with the ground. A transparent, closed manometer partially filled with an opaque liquid is contained in an opaque enclosure. A light source is located w...
05/24/1977
 
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