Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 7395605 | Apparatus and method for measuring and controlling pendulum motion A magnetically damped inclinometer has a shaft with attached pendulum that rotates. The rotation causes an index member to rotate past one or a set of magnets or electromagnets that are connected to the load. The magnet or electromagnet may be mounted directly the l... | 07/08/2008 |
| 7121012 | Apparatus and method for measuring and controlling pendulum motion A magnetically damped inclinometer has a shaft with attached pendulum that rotates. The rotation causes an index member to rotate past one or a set of magnets or electromagnets that are connected to the load. The magnet or electromagnet may be mounted directly the l... | 10/17/2006 |
| 7073269 | Self-leveling laser alignment tool and method thereof A self-leveling laser alignment tool and method thereof which provides a laser beam in a substantially truly level or plumb orientation are disclosed. Magnetic attraction is used to compensate for leveling errors of an approximately or partially leveled pendulum pla... | 07/11/2006 |
| 7017701 | Inclination-measuring device An inclination-measuring apparatus for use with a motor vehicle includes a rotary sensor connected to the motor vehicle, the rotary sensor selected from one of a rotary position sensor and a rotary angle sensor, a pendulum and a controller. The pendulum has a pendul... | 03/28/2006 |
| 6941666 | Forklift mast position indicator A device which is attachable to the mast of a forklift for indicating to the forklift operator the tilt angle of the mast in a vertical plane centered on the forklift includes a pivotably supported weighted pendulum, and an elongated activating arm secured to the up... | 09/13/2005 |
| 5201129 | Vertical indicator unit The invention relates to a vertical indicator unit for measurement comprising placing a float in a vessel filled with a liquid, supporting the vessel with an external supporting frame, securing a doughnut-like magnet integrally with the outside of the low... | 04/13/1993 |
| 5174035 | Attitude sensing apparatus An attitude sensing apparatus for detecting a tilt angle and an azimuth angle of the tilt of a structure includes a pair of detecting devices disposed on the structure at right angles to each other. Each of the detecting devices consists of a rotary shaft... | 12/29/1992 |
| 4771546 | Device for ascertaining the camber and caster positions of vehicle front wheels A device for ascertaining the camber and caster positions of vehicle front wheels including a base frame having a depending plate freely pivotal on an axis normal to the base frame and a depending pointer freely pivoted to the plate on an axis normal to t... | 09/20/1988 |
| 4700479 | Cant angle sensor assembly The present invention is a cant angle sensor assembly which senses the amount of tilt of an object in the longitudinal, transverse and oblique directions and which effectively exhibits a damper action in all directions by a single magnetic damper means.... | 10/20/1987 |
| 4627172 | Inclinometer having two degrees of freedom An inclinometer, adapted to be rigidly secured to an object, for detecting the amount and direction of the inclination of the object in any direction with respect to a horizontal or other reference plane. The inclinometer comprises a fiber optic rod rigid... | 12/09/1986 |
| 4592147 | Electrically actuated angular orientation indicating device A chamber filled with an oscillation damping liquid has a non-magnetic plumb bob suspended from an upper portion of the chamber and a radiated beam path traverses the chamber below the suspension point of the freely suspended plumb bob. The beam path and ... | 06/03/1986 |
| 4584778 | Angle change detector An angle change detector which can also be used as an inclination angle detector comprises a pair of opposing magnets, a sector-shaped pendulum made of an electroconductive non-magnetic material and swingable past a spacing between the opposing magnets, a... | 04/29/1986 |
| 4571844 | Angle change detector An angle change detector which can also be used as an inclination angle detector comprises a pair of opposing magnets, a sector-shaped pendulum made of an electroconductive non-magnetic material and swingable past a spacing between the opposing magnets, a... | 02/25/1986 |
| 4565010 | Electronic signaling level An angular orientation detector and indicator has a plumb bob suspended in a vertically extending chamber of a housing. A beam of radiation is emitted across the chamber from a beam emitter to a beam receiver and the plumb bob is swingable through a beam ... | 01/21/1986 |
| 4517749 | Stable plumb beam optical projector A viscous dampened sensitive pendulum carries a generally upwardly directed light source for indicating the gravity vertical. The sensitive pendulum is carried for two degrees of pivotal freedom by flexural pivots which are biased for operation at an erro... | 05/21/1985 |
| 4484186 | Earthquake indicator A novelty for apparently indicating earthquakes, including a circular base marked with concentric circles on its upper side defining different earthquake intensities, a frame upon the base supporting a freely depending electrical contact through a support... | 11/20/1984 |
| 4467526 | Inclination instrument Inclination measurement apparatus having a housing, a reference pendulum mounted for swinging about one axis of the housing to respond to deviation of the housing means about such axis, an inclination indicator responsive to the inclination of such housin... | 08/28/1984 |
| 4375727 | Cant angle sensor assembly A cant angle sensor comprises a conductive, nonmagnetic pendulum suspended from the shaft of a resolver for limited angular travel in the slot of a C-shaped magnet. When the angle of the sensor changes, the pendulum seeks a new vertical null, and the C-sh... | 03/08/1983 |
| 4370813 | Automatic self-leveling instrument mount A self-leveling instrument mount comprises an instrument table pivotally mounted above a stationary frame on first, second and third vertical support arms. The first support arm is a fixed length member connected to the frame through a ball and socket joi... | 02/01/1983 |
| 4265027 | Automatic self-leveling instrument mount A self-leveling instrument mount comprises an instrument table pivotally mounted above a stationary frame on first, second and third vertical support arms. The first support arm is a fixed length member connected to the frame through a ball and socket joi... | 05/05/1981 |
| 4132004 | Remote fixture aiming device A sensing system for measuring the angle of aim of an adjustable remote lighting fixture comprising a pendulum adapted to be mounted on the remote fixture, a potentiometer coupled to the pendulum, and a battery-powered measuring circuit connectable by mea... | 01/02/1979 |
