Bizarre Patents
User-operated amusement apparatus for kicking the user's buttocks
An apparatus including a user-operated and controlled apparatus for self-infliction of repetitive blows to the user's buttocks by a plurality of elongated arms bearing flexible extensions that rotate under the user's control.
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| Number | Title | Issue Date |
| 7284431 | Geophone An improved system for sensing ground motion is provided. The system generally comprises a shell and a case within the shell and connected by a suspension. The mass of the case is greater than the mass of the shell. An electrode within the shell detects relative mot... | 10/23/2007 |
| 7171853 | Magnetohydrodynamic (MHD) actuator sensor An MHD sensor/actuator is provided for generating torque as well as sensing angular displacements around a sense/torque axis. A column of conductive liquid which rotates within a circumferential channel having an inner circumferential surface and outer circumferenti... | 02/06/2007 |
| 7096734 | Thermal accelerometer with reduced sensitivity to external magnetic fields The thermal accelerometer of the invention comprises an enclosure having disposed therein a central filament powered by alternating electric current of zero mean amplitude and having a frequency lying between first and second resonant modes of vibration of the centr... | 08/29/2006 |
| 6382025 | Rotational rate sensor A rate sensor for angular/rotational acceleration includes a housing defining a fluid cavity essentially completely filled with an electrolyte fluid. Within the housing, such as a toroid, ions in the fluid are swept during movement from an excitation elec... | 05/07/2002 |
| 5610333 | Semiconductor type gas rate sensor A semiconductor type gas rate sensor which is capable of accurately sensing with a sufficient sensitivity an angular velocity acting on its body made of semiconductor substrates having a nozzle port and a gas path etched therein with a pair of heat wires ... | 03/11/1997 |
| 5567877 | Multiple-axis gas flow type angular velocity sensor A multiple-axis gas flow type angular velocity sensor which can accurately and stably detect the magnitude and direction of angular velocities acting in any direction on the sensor main body is provided by performing precision processing on semiconductor ... | 10/22/1996 |
| 5476820 | Method of manufacturing semiconductor gas rate sensor A semiconductor gas rate sensor includes a base composed of a first semiconductor substrate and a second semiconductor substrate bonded thereto by a thermosetting adhesive layer deposited on a mating surface of the second semiconductor substrate, the base... | 12/19/1995 |
| 5461919 | Low-profile magnetohydrodynamic motion sensor for an electronic system Angular motion sensor for sensing angular velocity components at higher frequencies. A first lower case member open at the top thereof supports a magnet therein for establishing a magnetic field oriented parallel to a central axis of the lower case. An in... | 10/31/1995 |
| 5456109 | Thick film rotational accelerometer having two structurally integrated linear acceleration sensors A rotational accelerometer has a pair of coplanar, operationally independent linear acceleration sensors. Coplanarity is provided by a unitary substrate which forms the base structure of the operationally independent linear acceleration sensors.... | 10/10/1995 |
| 5385046 | Gas flow type angular velocity sensor An angular velocity sensor of the type wherein a flow of gas forced by a pump into a gas path in the sensor body through a nozzle hole and directed toward a pair of thermosensitive resistance elements provided in the gas path is deflected by the action of... | 01/31/1995 |
| 5067351 | Magnetohydrodynamic angular rate sensor for measuring large angular rates An electronic motion sensor is described, wherein a cavity formed in a case of high flux density material supports a permanent magnet at the bottom. The permanent magnet has a north/south pole orientation in line with the cavity axis. A circular channel i... | 11/26/1991 |
| 4718276 | Angular motion sensor A solid electrode in the core of an angular motion sensor has a body of conductive fluid confined therein within an annular flux gap between axially spaced magnets. An arrangement of slots in the walls of the electrode modifies the current, induced in the... | 01/12/1988 |
| 4692614 | Rotational motion fluid loop sensor using magnetically levitated detecting element A rotational motion sensor has a circular, tubular body (1) filled with a fluid. A sensor head (6) forming part of the body houses a movable detecting element in the form of a piston (7) which is magnetically levitated so that it is kept out of contact wi... | 09/08/1987 |
| 4528851 | Force responsive device A device is provided for use in measuring acceleration and deceleration of a rotating body. The device includes a housing having wall means which define an endless flow path. The housing is rotatable about an axis which passes through the center of or is ... | 07/16/1985 |
| 4293046 | Survey apparatus, method employing angular accelerometer A method of determining azimuth involves use of an angular accelerometer, and includes: (a) rotating the accelerometer about a first axis while the accelerometer is carried on a body which is itself rotating about a second axis, and (b) detecting the accelerom... | 10/06/1981 |
| 4232553 | Angular acceleration sensing apparatus An angular acceleration sensing device which operates on a principle whereby the relative motion of a volume of gas or fluid contained within an annular ring or torroid is sensed when the container is subjected to an angular acceleration about an axis per... | 11/11/1980 |
| 3977256 | Rotational acceleration sensor and method A device for responding to rotational acceleration of the type having a looped conduit and in which a fluid filled housing has first and second expansible chambers each having a movable wall, with the movable walls being mounted for generally coaxial move... | 08/31/1976 |
| 3967178 | Wide band angular displacement and velocity sensor and method An angular displacement transducer having a mounting base for mounting an inertial element sensitive to low frequency angular displacements and an inertial element sensitive to high frequency angular displacements. The low frequency sensitive inertial mas... | 06/29/1976 |
| 3960691 | Tactical rate sensor A rate sensor comprising a glass annulus filled with an electrolytic fluid. A plurality of electrodes in contact with the electrolyte have an electrical field established between them which in turn starts a flow of ions between the electrodes. When the de... | 06/01/1976 |
| 3948107 | Velocity transducer A velocity sensor which may be modified to perform a sensing function for either angular velocity or linear velocity. The sensor has a base member which is split into upper and lower halves which are shaped to form internal walls defining an internal chan... | 04/06/1976 |
