| Patent Number |
Title Of Patent |
Date Issued |
| RE33982 |
Marine instrument |
July 7, 1992 |
| A through-hull speed sensor of the magnetized paddlewheel sensor type wherein a paddlewheel is rotatably supported in a cavity adjacent a magnetic sensing device which generates electrical pulses corresponding to paddlewheel speed as the wheel rotates when the vessel moves through wa |
| D334335 |
Transducer mounting bracket |
March 30, 1993 |
|
| 7369458 |
Transducer identification |
May 6, 2008 |
| A transducer identification system provides transducer characteristic information to an echosounder. The echosounder, in turn, utilizes the transducer characteristic information to alter its functionality or parameters to optimize its performance. The transducer characteristic inform |
| 7352171 |
Paddlewheel speed correction |
April 1, 2008 |
| A speed sensor for a marine vessel includes a correction circuit to correct any sensor non-linearities so that the sensor produces an output with a pulse stream having a constant pulse rate, and reduces the pulse-to-pulse variations of the pulse stream. The circuit can standardize th |
| 7110908 |
Paddlewheel speed correction |
September 19, 2006 |
| A speed sensor for a marine vessel includes a correction circuit to correct any sensor non-linearities so that the sensor produces an output with a pulse stream having a constant pulse rate, and reduces the pulse-to-pulse variations of the pulse stream. The circuit can standardize th |
| 6904798 |
Multi-functional marine sensing instrument |
June 14, 2005 |
| A marine sensor device mounts in a single opening in a hull of a marine vessel. The sensor includes a housing secured in the opening. Positioned within the housing is a body containing at least two sensors. The body is removable from the housing. A magnetized paddlewheel can be disposed |
| 6678208 |
Range computations for correlation speed sensor |
January 13, 2004 |
| A time difference between two similar but time-shifted signals is determined using a difference function. For example, similar but time-shifted first and second signals are sampled to generate a discrete mathematical function whose discrete sample points define overlapping ranges. Ty |
| 6671225 |
Correlation speed sensor |
December 30, 2003 |
| A relative speed of an object is determined by monitoring random reflective surfaces in water. The system includes a first and second transmitter-receiver pair for producing echo signals of a monitored region. The monitoring pair of transducers are preferably positioned along an axis |
| 6426918 |
Correlation speed sensor |
July 30, 2002 |
| A relative speed of an object is determined by monitoring random reflective surfaces in water. The system includes a first and second transmitter-receiver pair for producing echo signals of a monitored region. The monitoring pair of transducers are preferably positioned along an axis |
| 5719824 |
Transducer assembly with acoustic damping |
February 17, 1998 |
| An ultrasonic transducer assembly for generating and receiving ultrasonic vibrating forces comprises an ultrasonic transducer and a unitary housing for mounting to a marine vessel. The housing has a cavity formed therein for disposing the ultrasonic transducer. An acoustic window portion |
| 5606253 |
Guided flow marine speedometer including angularly shaped housing for guiding water to a paddlew |
February 25, 1997 |
| A marine speedometer for mounting to the exterior transom of a marine vessel includes a housing mounted to the transom flush with the bottom surface of the hull. A paddlewheel affixed to the housing has an outer periphery which extends no further than the bottom surface of the hull of |
| 5581025 |
Marine instrument |
December 3, 1996 |
| A through-hull speed sensor of the magnetized paddlewheel sensor type wherein a paddlewheel is rotatably supported in a cavity adjacent a magnetic sensing device which generates electrical pulses corresponding to paddlewheel speed as the wheel rotates when the vessel moves through wa |
| 5390152 |
Forward looking echosounder |
February 14, 1995 |
| A forward looking echosounder uses a non-scanning forward looking transducer inclined from the horizontal at a 45.degree. angle. The forward looking transducer produces a set of acoustic data signals indicative of echo signals received along the central axis of the sonic beam as produced |
| 5186050 |
Marine sensor mounting mechanism |
February 16, 1993 |
| A marine sensor mounting mechanism having a tubular sleeve in the hull of a boat; valve means mounted for pivotal movement in the sleeve from an open position when a sensor is in place to a closed position when the sensor is removed. |
| 4898029 |
Marine instrument |
February 6, 1990 |
| A through-hull speed sensor of the magnetized paddlewheel sensor type wherein a paddlewheel is rotatably supported in a cavity adjacent a magnetic sensing device which generates electrical pulses corresponding to paddlewheel speed as the wheel rotates when the vessel moves through the |
| 4850559 |
Marine instrument mounting mechanism |
July 25, 1989 |
| Mechanism for mounting a marine instrument (I) on a boat having a mounting block (12) and a pair of brackets (10) spaced from each other on opposite sides of the block (12). There are pivots (20) for mounting each bracket on the block for pivotal movement about a common axis (22). The ma |
| 4836020 |
Marine instrument |
June 6, 1989 |
| A through-hull speed sensor of the magnetized paddlewheel sensor type wherein a paddlewheel is rotatably supported in a cavity adjacent a magnetic sensing device which generates electrical pulses corresponding to paddlewheel speed as the wheel rotates when the vessel moves through wa |
| 4815048 |
Dual axis transducer |
March 21, 1989 |
| A dual axis transducer assembly comprises a transducer (20), a yoke (24) which mounts the transducer for oscillating movement about a substantially horizontal axis. A turntable (28) mounts the yoke and hence the transducer for oscillating motion about a vertical axis. Separate motors (10 |
| 4781350 |
Adjustable marine instrument mounting mechanism |
November 1, 1988 |
| An adjustable marine instrument mounting mechanism having a tube (2) for mounting a sensor (S) at one end, a base (14) which is attachable to a boat, and a housing (28) which pivots on the base and which mounts the tube and the instrument. Means (104) employed to latch the housing to the |
| 4667915 |
Marine sensor mounting mechanism |
May 26, 1987 |
| A marine sensor mounting mechanism is disclosed and comprises a mounting plate (2) securable to a boat, a two-branch bifurcated bracket (4) having one branch attached to the plate and a two-arm toggle link (6) having one arm pivotally attached to the plate and the second arm pivotally at |
| 4644788 |
Modular marine instrument |
February 24, 1987 |
| A modularized marine instrument sensing device is described wherein a paddlewheel assembly for providing an electromagnetic signal proportional to marine vessel speed is separably mountable on retaining members provided in a sensor housing. The sensor housing may house a Hall-effect |
| 4644787 |
Marine instrument |
February 24, 1987 |
| A marine speed sensor mounted in a housing which may also include a temperature sensor and a sonic transducer. The speed sensor includes a paddlewheel for producing an electromagnetic field. The paddlewheel is rotatably mounted adjacent the housing and exposed at top and bottom and m |
| 4555938 |
Marine instrument |
December 3, 1985 |
| A marine speed sensor mounted in a housing which may also include a temperature sensor and a sonic transducer. The speed sensor includes a paddlewheel for producing an electromagnetic field. The paddlewheel is rotatably mounted adjacent the housing and exposed at top and bottom and m |
