| Patent Number |
Title Of Patent |
Date Issued |
| 7393254 |
Marine buoy |
July 1, 2008 |
| The present application relates to a marine buoy featuring a novel bracing assembly disposed within a marine buoy and featuring a plurality of bracing members extending between and connecting to a first fastening member and a second fastening member. |
| 4982195 |
Servo control with self calibrating preset |
January 1, 1991 |
| A frequency input for receiving a frequency signal and digital storing for storing the received frequency signal. A controller has a first and second input and an output. The first input is connected to the digital storage for providing a reference signal and the output provides a freque |
| 4931976 |
Temperature compensated side lobe suppression |
June 5, 1990 |
| An improved side lobe suppression circuit in a racon for determining frequency band edge. As the temperature varies, a temperature frequency calibration table receives a temperature measurement and determines which frequencies are out of band as the temperature varies. A microprocessor |
| 4904947 |
Method and circuit for measuring pulse width |
February 27, 1990 |
| A method and apparatus of measuring the pulse width of electronic pulses which may have a large variation in amplitude. An electronic pulse includes a rising edge, a top and a falling edge and the method and apparatus measures a first point adjacent to the beginning of the rising edg |
| 4875132 |
Antenna grounding system |
October 17, 1989 |
| A lightning protected antenna in which at least one metallic antenna and its connected electronic housing is enclosed in a pressurized non-magnetic enclosure. A conductive path for lightning is provided which does not interfere with the radiation pattern of the antenna. The path includes |
| 4849868 |
Pulse width modulated switching power supply |
July 18, 1989 |
| An improved regulator circuit for a pulse width modulated power supply having an input switch and a plurality of different output voltages. A precision reference voltage is connected to one or more op-amplifiers and/or divider networks, each of which is connected to an output voltage |
| 4631544 |
S-band coaxial slot array antenna |
December 23, 1986 |
| An S-band antenna with a body having an inner circular tube and a coaxial outer circular tube in which the circumference of the outer tube is one wave length of S-band radar. A plurality of pairs of axially elongated slots are provided in the outer tube in which the slots of each pair ar |
| 4620190 |
Method and apparatus for simultaneously actuating navigational lanterns |
October 28, 1986 |
| A method and apparatus for causing a plurality of navigational lanterns, each equipped with an independent light sensing device and connected to a common synchronizing terminal, to actuate simultaneously at dusk, and deactuate simultaneously at dawn. The light sensing device senses the |
| 4415951 |
Lampchanger |
November 15, 1983 |
| A lampchanger preferably for use in a railroad signal lantern having a focusing lens which includes a horizontally rotatable turret adapted to support a plurality of lamps for indexing one of the lamps to the focal point of the lens. The turret includes a plurality of bayonet sockets for |
| 4286347 |
Double acting turbine for converting wave energy of water to electrical power |
September 1, 1981 |
| A double acting turbine for converting water wave energy to electrical power in a marine buoy or platform. A tubular body is provided one end of which is adapted to be inserted into the water wave and the second end is adapted to extend out of the water whereby the rise and fall of water |
| 4253042 |
Alternating current lampchanger control circuit |
February 24, 1981 |
| An alternating current lampchanger control circuit for driving a rotatable turret having a plurality of lamps, such as used in a navigational light. An input receives pulsed alternating current signals and is connected to a power circuit including fixed contacts for supplying the pulsed |
| 4225901 |
Lampchanger for a light |
September 30, 1980 |
| A lampchanger for a light, such as a navigational light, having a rotatable turret for holding a plurality of lamps, fixed power contacts for engaging and lighting the lamp positioned in the operating position, and means for rotating the turret thereby placing a new lamp into operating p |
| 4190777 |
Position sensor for rotatable lamp changer turret |
February 26, 1980 |
| A position sensor for a rotatable lamp changer turret having a plurality of lamps which are rotated in sequence to an operating position as the lamps burn out. A circular cam is positioned on the turret that includes a first position indicating portion for each of the lamps for indicatin |
| 4175244 |
Lamp filament configuration for use in a drum lens |
November 20, 1979 |
| The improvement in a filament system in a lamp for use in a drum lens of a navigational light in which a plurality of vertically positioned similar filaments are spaced about but away from a vertical axis adapted to be placed at the focal point of the lens. The filaments are positioned i |
| 4097308 |
Glass enclosed solar cell panel |
June 27, 1978 |
| A solar panel for use in hostile environments. The panel includes top and bottom molded glass plates, each having a downwardly directed sidewall extending around their outer peripheries. The bottom plate is positioned beneath and within the sidewalls of the top plate thereby downwardly |
| 4024491 |
Wireless marine navigational aid system |
May 17, 1977 |
| A marine navigational aid system in which at least two marine aids, such as lights, are controlled, such as synchronized, relative to each other without the units being connected with an electrical cable. A marine navigational aid system having an underwater sonic transmitter and rec |
