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A haircutting appliance comprises an enclosed housing having a hollow handle connecting the housing to a vacuum source to carry away cut hairs from a subject's head.
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| Number | Title | Issue Date |
| 7172473 | Rudder indicator A rudder position indicator apparatus includes a cam mounted on a steering linkage of a watercraft. The steering linkage is or an outdrive. When the rudder or an outdrive is in a straight position, the cam activates a micro switch, which in turn, supplies a ground f... | 02/06/2007 |
| 6658332 | Anti-terrorism shipping control An anti-terrorist ship control system includes satellites that automatically take control of a waterborne vessel when the vessel's position or speed deviate from planned tracks or when the vessel transmits a distress signal or when the vessel stops report... | 12/02/2003 |
| 6549831 | Rudder angle indicator system with active sector sensing The rudder angle indicator system utilizes a low cost potentiometer coupled to the rudder to provide a signal proportional to rudder angle. A stepper motor positions, in open loop arrangement, the dial of a rudder angle indicator, such as a large three-fa... | 04/15/2003 |
| 6392592 | Hand held car locator A car locator system includes a hand held locator which receives information with regard to the location of a vehicle and then stores that information for display on the hand held locator. The hand held locator could be a key fob having buttons to command... | 05/21/2002 |
| 4912465 | Rudder position indicator A position indicator useful in determining the position of a rudder on a boat consists of apparatus and circuitry for causing a plurality of lights to light in such a way that all are on in a first color when the rudder is in a full port position, all are... | 03/27/1990 |
| 4739236 | Portable helm There is disclosed a portable system to control and monitor the basic maneuvering functions of marine vessels: The control and monitoring functions are contained on a hand held, small and lightweight consul which can be plugged into multi-pin sockets whic... | 04/19/1988 |
| 4634978 | Magnetometer direction measuring system requiring no external compass A system for accurately measuring the direction in which a magnetometer is to be set has a simple construction and is little affected by iron structures on a hull. The system has a magnetometer which includes an excitation source, a magnetic core, an exci... | 01/06/1987 |
| 4342274 | Steering failure alarm An apparatus for providing the operator of a marine vessel with an alarm when when a malfunction occurs in the steering system of the vessel. The apparatus utilizes a closed loop simulator to simulate the rudder position, and a comparison of the simulated... | 08/03/1982 |
| 4103638 | Automatic piloting system An automatic piloting system for the automatic steering of a marine or other vessel along an intended course in which a digital signal representing an intended course is processed to provide rudder commands for steering the desired course.... | 08/01/1978 |
| 4055135 | Rudder error detector Apparatus for detecting malfunctions in rudder-type steering systems utilizes electrical order and rudder angle signals. The rudder-order signal is applied to a closed-loop simulator that includes integrating apparatus adjusted to provide a time-variant s... | 10/25/1977 |
| 4038528 | Automatic piloting system An automatic piloting system for the automatic steering of a marine or other vessel along an intended course in which a digital signal representing an intended course is processed to provide rudder commands for steering the desired course.... | 07/26/1977 |
