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Patent No. 5970981

Mouthguard made at least partially from an edible candy

A mouthguard includes a U-shaped upper bite plate which removably fits over upper teeth of a person, with the entire upper bite plate being made from a soft, deformable and edible gummi candy.

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Class 33/364 - Liquid buoyed magnetic needle


Subclass of Class 33 - Geometrical instruments
Definition: Device wherein the means influenced by the external magnetic
No. of patents: 55
Last issue date: 04/08/2008


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NumberTitleIssue Date
7353571Fluid filled attachment device
An attachment device is provided comprising at least one fluid filled cavity formed therein. The attachment device is preferably in the form of a carabiner in which at least a portion of the carabiner body is formed of a transparent material such that the fluid fill...
04/08/2008
7331114Magnetic compass structure
A simple self-contained, hand-held instrument for reading an azimuth or bearing in relation to the earth's magnetic field either out in the field or on the water with substantial accuracy. Means are provided that places the far object into the same focal plane (or f...
02/19/2008
7222433Electromagnetic inclinometer
An angle sensor comprising a housing (1) having horizontal and vertical axes, which housing is adapted to receive a magnetic core (5) such that the core remains in substantially the same plane, e.g. by floating on a liquid (4). The core is provi...
05/29/2007
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
7118549Shunt system including a flow control device for controlling the flow of cerebrospinal fluid out of a brain ventricle
An anti-siphon device limits the flow of a fluid from a first region of a patient's body to a second region. The device includes a housing having a spherical inner surface with a predetermined inner diameter. The housing has an inlet port for receiving fluid from th...
10/10/2006
6902405Simulator apparatus with at least two degrees of freedom of movement for an instrument
A simulator apparatus with at least two degrees of freedom of movement for an instrument that has an elongated shaft, having a holding device for the instrument, the holding device being designed such that the instrument has at least a first degree of freedom of a s...
06/07/2005
6708415Magnetic compass structure
An Improvement to enhance the usability of magnetic compasses by eliminating acceleration and turning errors, especially in aviation applications, without compromising simplicity and reliability. The improvement includes the addition of a weightless mass to the bar ...
03/23/2004
6665944Magnetic marine compass
A self-balancing marine compass. A described embodiment includes a pivot assembly, a buoyant-magnetic chamber assembly, a reading card assembly, and a dome. The pivot assembly includes fulcrums, each of which fit within fulcrum holders located on an inner...
12/23/2003
6493953Marine compass and package
A marine compass module can be selectively mounted in either a U-shaped bracket or a binnacle, and all of these items can be marketed in the same package. The compass module can be adjusted so that its magnetic card is horizontally aligned even though the...
12/17/2002
6357128Low profile compass with removable protective cover and magnetic bull's eye alignment system
A low profile compass of the type including a transparent base member and fluid-filled vial contains a directional indicator in the vial in the form of a circle which is alignable with another circle imprinted on the vial. A hinged cover assembly can be d...
03/19/2002
6094830Inclination-compensating display device for a compass
The present invention provides a compass comprising an at-least-partially-transparent housing having a top and a bottom, a vertically orientated, conical pivot bearing, and a magnetic detection means which is mounted on the vertically-oriented conical piv...
08/01/2000
5752322Gimballed ouroboros compass device with digital logic
A gimballed compass apparatus with digital logic is disclosed which provides directional and attitudinal data. The apparatus comprises a rotatably mounted slotted disk wherein the slot is continuously varying in width around the circumference of the disk....
05/19/1998
5669148Altered light navigation device
A navigational device that employs the azimuthal position of a housing assembly relative to the Earth's magnetic field to alter light such that the altered light becomes a direction indicator. By using the altered light as a signal the device is both econ...
09/23/1997
5528837Adjustable magnetic compass
An adjustable magnetic compass for adjustably compensating for the magnetic variation between magnetic north and map north. The adjustable compass includes a compass dial having directional indicia applied thereto, and a lubber line for operative alignmen...
06/25/1996
5517430Real-time digital orientation device
A real time directional orientation apparatus is disclosed for use in a four pi (4π) geometry. The apparatus is to be affixed to an object which translates in space. A source emitter means, which may be radioactive, is suspended in a fluid in concert wit...
05/14/1996
5477470Real-time digital orientation device
A real time directional orientation apparatus is disclosed for use in a two pi (2π) geometry. The apparatus is to be affixed to an object which translates in space. A cylindrical disk is suspended in a fluid in concert with a magnet. The cylindrical disk...
12/19/1995
5469630Gimballed compass device
A gimballed compass apparatus is disclosed which provides directional and inclinational data. The apparatus comprises a rotatably mounted slotted disk wherein the slot is continuously varying in width around the circumference of the disk. The disk incorpo...
11/28/1995
5469631Air bubble free compass and method of manufacturing same
A method of preventing air bubbles in a compass equipped with fluid expansion capability, wherein a compass unit is assembled with a fluid expansion diaphragm; the compass unit is filled with fluid expanding the diaphragm, and sealed while maintaining the...
11/28/1995
5448835Compass device
A low cost, simple apparatus is disclosed which can be used to provide positional information relative to an external magnetic field. The apparatus comprises a rotatably mounted slotted disk wherein the slot is continuously varying in width around the cir...
09/12/1995
5151753Non-parallax optical sighting instrument
An optical sighting instrument having a main optical path including an objective lens, an eyepiece lens and a beamsplitter for combining or superimposing images. At least three image planes are defined with reference to the main optical path and the beams...
09/29/1992
5146687Compass
The improvement of the present invention provides a camper's compass having a plate or member, such as an arcuate bow, having a direction pointer, which is pivotably mounted over the compass housing in such as way that it can swing between a normal forwar...
09/15/1992
5107597Magnetic compass
A magnetic compass has an instrument body adapted to be held level by a gimbal mechanism and having a vertical cylinder member, a spherical or semi-spherical float body on the upper end of the cylinder member and having a spherical surface facing downward...
04/28/1992
5079845Dual readout analog/digital magnetic compass
A magnetic compass in which a conventional compass card provides an analog readout of compass heading and a binary coded digital disk together with fiber optic sensing technology provides a digital readout of compass heading contained within a single hous...
01/14/1992
5079846Floating disk compass
A liquid-type compass comprises a light-weight thin, flat disk of magnetic material so constructed that it is capable of floating on a liquid surface so as to be movable to orient itself in a North-South direction. A flat support provided for storing the ...
01/14/1992
4953304Mask compass
The invention relates to a mask compass comprising a case attached to the outer surface of glass of goggles. The compass box is placed inside the casing. Thus the checking of the compass does not interfere with regular diving movements and e.g. cause devi...
09/04/1990
4930224Magnetic compass
An improved magnetic compass unit consists of a compass bowl, a card assembly pivotally supported on a pivot shaft within the bowl, the card assembly consisting of a compass card and a magnet, and at least one active indicator pin adapted for alignment wi...
06/05/1990
4920656Compass assembly with dial biasing disk
A compass assembly comprising a base, a dial member received in a recessed portion of the base and rotatable relative the base about a dial member central longitudinal axis, and a compass housing received in a recessed portion of the dial member and fixed...
05/01/1990
4910459Magnetic tile sensor with a non-magnetic case having a flange and a cover cold welded thereon
A magnetic tile sensor has a permanent magnet having a surface coated with a magnetic fluid and housed in a hollow portion of a nonmagnetic case, and a magnetic sensing element arranged outside the bottom portion of the case. When the case is tilted or is...
03/20/1990
4905377Traveler's direction finder
A unit comprising a base on which is mounted an atlas of maps each with an arrow thereon indicating the relation of the map area to north, and on which base is also mounted a compass having in a container a liquid on which floats a magnet bearing disk on ...
03/06/1990
4885535Magnetic tilt sensor with permanent magnet surrounding magnetic sensing element
There is proposed a tilt sensor in which a first permanent magnet having a magnetic fluid adhered to its surface is housed in a nonmagnetic case, a magnetic sensing element is arranged outside a bottom portion of the case, and a second permanent magnet is...
12/05/1989
4866379Tilt sensor having central first bottom surface and second contiguous bottom surface at an angle thereto
There is proposed a tilt sensor in which a permanent magnet having a surface coated with a magnetic field is housed in a hollow portion of a nonmagnetic case, and a magnetic sensing element is disposed outside a bottom portion of the case. When the case i...
09/12/1989
4848002Self-centering needle-less magnetic compass
A magnetic compass having a magnet bearing float in a liquid and which float is self-centering and rotatable relative to an element of soft magnetic material spaced below it so as to align a pointer on the float with the earth's north magnetic pole and wi...
07/18/1989
4803426Magnetic tilt sensor
A magnetic tilt sensor in which a permanent magnet having a surface coated with a magnetic fluid is housed in a space inside a nonmagnetic case and is freely movable, and a magnetic sensing element is disposed to oppose the space through the case. When th...
02/07/1989
4763419Optical viewing system
There is provided an optical viewing system, which is preferably a compass which eliminates the parallax and sighting problems of prior art optical systems. The compass includes a beam splitter which displays a sighted image both on a reference screen and...
08/16/1988
4667414Direction-finding devices
A housing defines a chamber having a spherical inside surface, and a spherical float is supported within the chamber by a liquid so that the outside surface of the float is equidistantly spaced from the top and bottom of the inside surface of the chamber....
05/26/1987
4601106Vibration attenuator
A vibrator attenuator, especially for a compass. The vibration attenuator is situated to prevent transfer of vibrations from the fastening base of a compass, e.g. from the framework of a boat, to the compass rose, to prevent revolving of the compass rose ...
07/22/1986
4577414Remotely readable fiber optic compass
A remotely readable fiber optic compass. A sheet polarizer is affixed to a magnet rotatably mounted in a compass body, such that the polarizer rotates with the magnet. The optical axis of the sheet polarizer is preferably aligned with the north-south axis...
03/25/1986
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
4481810Adjustable wind direction devices
This invention sets forth a wind tracking device particularly useful on sailing vessels for determining the best sailing direction relative to the wind. The reference card is provided with color panels which cooperate with lines on the dome to indicate be...
11/13/1984
4471534Remote reading compass with 360 degree roll capability
A cylindrical compass gimballing and data readout system permitting 360° rotation about both yaw and roll axes includes a cylindrical compass housing flooded with semiconductive fluid to permit transmission of a digitally multiplexed signal from a remote...
09/18/1984
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