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| Number | Title | Issue Date |
| 7311570 | Automatic system for adjusting the trim of a motor boat The present invention is a system for automatically controlling the trim of a boat drive thrust on a boat by controlling the trim motor which adjusts the trim angle of the boat drive thrust by pivoting the boat drive thrust relative to the boat. The system includes ... | 12/25/2007 |
| 6952084 | Intelligent electrical switching device The present invention, according to a preferred embodiment, is directed to portable electronic devices which operate on exhaustible power sources, for example, batteries. The electronic devices of the present invention comprise at least one signal switch and a micro... | 10/04/2005 |
| 5152670 | Sump system A sump apparatus for use in a marine vessel comprises a tank, a pump communicating with the tank for evacuating the tank, and a pump control mechanism for energizing the pump in response to a predetermined height of water in the tank. That mechanism compr... | 10/06/1992 |
| 4523066 | Automotive air conditioning system controlled by damped pressure switch The electrically operated clutch controlling operation of the compressor is regulated by a damped pressure switch. The pressure switch has a diaphragm which moves in response to pressure variation to actuate the switch. The force acting on the diaphragm i... | 06/11/1985 |
| 4342884 | Piston unit A small-sized differential piston unit is disclosed. The piston unit has a cylinder filled with liquid medium and a piston slideably mounted in the cylinder. An operation rod is operatively connected to said piston. An improved sealing member consisting o... | 08/03/1982 |
| 4326387 | Fluidic time delay system A variable fluidic time delay system for operating a plurality of pressure sensitive control switches to effect sequential operations at different pressure settings or for different components in response to the fluid pressure at a predetermined location ... | 04/27/1982 |
| 4303147 | Adjustment for pneumatic timer An adjustment mechanism for a pneumatic timing device, that operates relay contacts with a time delay, in which a needle valve is aligned longitudinally with a bellows and the needle valve is operated by a rotatable adjustment knob that operates a visual ... | 12/01/1981 |
| 4084084 | Bubbler and automatic light An illuminating device having an L-shaped housing with a light source at each end, a diaphragm actuated switch for each light source, an air line in fluid communication with each leg of the housing, and a tube interconnecting the housing legs for permitti... | 04/11/1978 |
| 4081621 | Pressure switch with diaphragm and valve means A pressure switch comprising a housing and a movable pressure responsive diaphragm in the housing cooperating therewith to define a sensing chamber. The housing has an inlet passage leading to the sensing chamber and a vent passage leading from the sensin... | 03/28/1978 |
| 4038619 | Pneumatic timer A pneumatic timer translating the external force of an electromagnetic relay or the like into rotational movement of a camshaft to actuate a set of switch contacts. The rotation of the camshaft is retarded in one direction by an adjustable pneumatic one-w... | 07/26/1977 |
| 4020818 | Oil pressure delay check valve and pressure switch for shutting off diesel engine upon drop in oil pressure Oil pressure delay check valve and pressure switch for unattended Diesel engine to shut off the fuel supply valve after a low oil pressure signal, and to delay opening of the valve for a predetermined time interval. This delay is attained by the closing o... | 05/03/1977 |
