Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 7612686 | Emergency underwater notification device The emergency underwater notification device disclosed, one of which would be carried by each diver on a team of divers at a dive site, comprises (a) an activator; (b) one or more primary signal emitters, each of which emits a primary notification signal upon activa... | 11/03/2009 |
| 7436324 | Maritime port inspection and ingress control A marine port monitoring system including an inspection apparatus, either fixed or mobile, for intercepting cargo vessels entering the port. The system includes sensors placed in a shipping channel for examination of a hull of a passing vessel to detect externally m... | 10/14/2008 |
| 7388512 | Diver locating method and apparatus A system for locating a diver is provided. The system includes a diver module for association with a diver that is capable of producing both an audible frequency signal to assist in locating the diver while submerged, and a radio frequency signal to assist in locati... | 06/17/2008 |
| 7365650 | Underwater RF propagation path An underwater RF signal propagation path is created by utilizing a plurality of individual RF transceivers such as MEMS RF transceivers. Each MEMS RF transceiver has a predetermined buoyancy. A stream of the RF transceivers are released to form a line of RF transcei... | 04/29/2008 |
| 7343261 | Underwater sensor transmitter probe An electronic apparatus for measuring water speed and water temperature then periodically transmitting said data during controlled depth fishing wherein an underwater probe is secured to and insulated conductive downrigger cable and gathers and relays data though th... | 03/11/2008 |
| 7336198 | Magnetostatic communication A system for providing communication of information by modulating a magnetostatic field with a magnetostatic transmitter that modulates said magnetostatic field to contain the information and detecting the information in the modulated field at a distance with a magn... | 02/26/2008 |
| 7336196 | Audio visual homing marker An audio visual homing marker includes a shock-resistant housing with a power supply, audio speaker and LED array inside the housing. A power switch is attached to the housing and the power supply. The housing includes a plurality of bulkheads that create a pluralit... | 02/26/2008 |
| 7310286 | System for undersea digital acoustic communications An undersea communications system in which a message is converted to a redundant fixed-length data packet and transmitted acoustically as a quadrature phase-keyed signal in a frequency band with a continuous pilot signal at a frequency closely adjacent to the freque... | 12/18/2007 |
| 7301474 | Wireless communication system and method A wireless communication system for use in well, subsea, and oilfield-related environments employs one or more wireless network devices that offer short-range wireless communication between devices without the need for a central network which may have a device using... | 11/27/2007 |
| 7289038 | Underwater sound radiation apparatus A plurality of actuators are provided at predetermined intervals on the reverse surface of a predetermined side wall of a swimming pool. When an electric signal corresponding to a sound to be propagated in the water is given to the actuators, the electric signal is ... | 10/30/2007 |
| 7218574 | High range rate signaling An underwater communications method and apparatus is provided for demodulating communications signals while compensating for the effects of range rate, i.e., relative velocity between the nodes of the communication system. The method of the invention is implemented ... | 05/15/2007 |
| 7194330 | Container tracking system A container tracking system comprises a dispatcher workstation with a graphical user interface and a database. These are used to track the whereabouts of shipping containers in a storage and transfer yard. A mobile unit in the yard is attached to container handling ... | 03/20/2007 |
| 7163065 | Combined telemetry system and method Telemetry systems and methods are disclosed for real time communication of information between multiple positions in a wellbore. ... | 01/16/2007 |
| 7148811 | Emergency underwater notification device The emergency underwater notification device disclosed, one of which would be carried by each diver on a team of divers at a dive site, comprises (a) an activator; (b) one or more primary signal emitters, each of which emits a primary notification signal upon activa... | 12/12/2006 |
| 7113097 | Underwater device with transmitter An apparatus that attaches to a moving, typically man-made, underwater object and that is capable of sending a signal is disclosed. The apparatus includes a housing, which in some embodiments is configured to look like an underwater organism. Within or on the housin... | 09/26/2006 |
| 7062167 | Optical transmission system, monitoring method therefor, optical communication apparatus, and optical external conducting apparatus To provide an optical transmission system that enables monitoring of communication data to be performed without interrupting operation. Optical signals to be transmitted by an optical communication apparatus and optical signals received by the optical communication ... | 06/13/2006 |
| 7058305 | Optical submarine communication system and surge suppressing apparatus of the optical submarine communication system An optical submarine communication system has a land cable connected to a terminal apparatus which is installed on land near the seashore for transmitting an optical signal and electric power. The land cable is connected to an optical submarine cable through a beach... | 06/06/2006 |
| 7034680 | Anchor/anchor chain monitoring device A device for monitoring the anchor or anchor chain, intended for facilities floating ahead of the anchor, such as ships, comprising a measurement device which determines by one or more sensors the prevailing state at one or more points of an anchor chain or anchor, ... | 04/25/2006 |
| 6999857 | Data communication and power transmission system for sensing devices A wireless power transmission and communication network that provides efficient interrogation and powering of sensors for use on undersea vehicles. The present invention employs a wave-guide that allows the propagation of electromagnetic waves through a dielectric m... | 02/14/2006 |
| 6989755 | Signal transmission device and method A signal transmitting apparatus which makes exchanging information when pouring a liquid possible. A container body 201 of a transmitter side container 20 holds an electrically conductive liquid 402. A display 306 for confirming data rece... | 01/24/2006 |
| 6972690 | System and method for transmission of electrical signals in imperfectly-conducting media A system for transmitting a signal through an imperfectly-conducting medium includes a transmitter station and a receiver station. The transmitter station has a transmitter and at least one conductor. The receiving station has at least one conductor and a receiver. ... | 12/06/2005 |
| 6954405 | System for housing an audio system in an aquatic environment A submersible, hydrostatic pressure tolerant enclosure for a portable audio device is disclosed. Also disclosed is a removable lid allowing for the inserting and removing of the device from the enclosure. The disclosure further provides a connector system and an aud... | 10/11/2005 |
| 6915847 | Testing a junction of plural bores in a well A test technique and mechanism includes lowering a junction assembly to a junction between at least two bores of a well. The junction assembly includes one or more sealed connections that are tested by the generation of a test flow of fluid. The distal ends of the j... | 07/12/2005 |
| 6803943 | Marine plant field survey method and survey system utilizing the survey method A marine plant field survey method includes the step of using a submarine mobile video system capable of taking images underwater to measure degree of macrophyte coverage in a marine plant field by taking wide-field images of macrophytes from above and a step of usi... | 10/12/2004 |
| 6731879 | Submarine communications system and landing-stage therefor To diminish the risk of interruption of traffic in a submarine optical cable system in the region of the shore where damage is most likely to occur, the landing-stage of the system has duplicated spaced-apart cables between a submerged branching unit and an onshore ... | 05/04/2004 |
| 6600695 | Method and apparatus for retrieving an unmanned underwater vehicle A system and method is disclosed for retrieving an untethered submarine tube-retrievable UUV in which the untethered submarine tube-retrievable UUV may be retrieved through the torpedo tube of a submarine. The untethered submarine tube-retrievable UUV has... | 07/29/2003 |
| 6577921 | Container tracking system A container tracking system comprises a dispatcher workstation with a graphical user interface and a database. These are used to track the whereabouts of shipping containers in a storage and transfer yard. A mobile unit in the yard is attached to containe... | 06/10/2003 |
| 6420976 | Underwater hydrocarbon production systems A hydrocarbon production system comprises a topside installation connected to a underwater distribution unit 4 by an umbilical 3. The unit 4 is connected to Christmas Trees 8, 9 and 10 by respective ones of jumper interconnects 11, 12 and 13. Each Christm... | 07/16/2002 |
| 6333685 | Apparatus for detecting submergence of vehicle A submergence detection portion 21 is provided in a circuit substrate, or the like, which carries electronic circuits of a power window control portion. The submergence detection portion 21 is configured to have an elliptical hole portion 25 provided in t... | 12/25/2001 |
| 6317055 | Monitor information transmitting/receiving apparatus in submarine cable system A monitor information transmitting/receiving apparatus transmits/receives monitor information data about each cable landing station in a submarine cable system in which a plurality of cable landing stations are arranged in the form of a ring. The apparatu... | 11/13/2001 |
| 6307810 | Underwater launched acoustic warning assembly An acoustic warning assembly capable of being launched from an underwater vehicle while being underwater. The acoustic warning assembly includes an acoustosensitive member for collecting above-surface acoustic signals. The acoustic warning assembly also i... | 10/23/2001 |
| 6130859 | Method and apparatus for carrying out high data rate and voice underwater communication An underwater apparatus for transmitting and receiving high rate data and voice communication including a transmitter, a receiver, and a Doppler frequency shift compensator. The transmitter includes a data source comprising digital data to be transmitted ... | 10/10/2000 |
| 6058874 | Radio frequency communications for underwater vehicle An antenna arrangement for a submerged submarine includes an independently unctioning underwater vehicle free of any tethered connection to said submarine, a buoy member having a hydrodynamic shape, an antenna mounted on the buoy member, the antenna enabli... | 05/09/2000 |
| 5841205 | Branching unit for underwater telecommunications systems A branching unit for an underwater communications system is arranged so as to provide remote hot switching for electrical power. The unit has three terminations (1, 2, 3) each for a different one of three line cables and one or more power demand circuits ... | 11/24/1998 |
| 5748102 | Apparatus for interconnecting an underwater vehicle and a free floating communications pod Apparatus for interconnecting an unmanned underwater vehicle and a free-fting communications pod includes a communications cable depending from the pod and extending to a buoy of less buoyancy than the pod, such that the cable carries communication signa... | 05/05/1998 |
| 5706251 | Scuba diving voice and communication system using bone conducted sound The invention is directed to a scuba diving mouthpiece for supplying air to a diver. The mouthpiece includes a mouth engageable body having at least one biteplate. Each biteplate is adapted for being disposed between and engaged by the teeth of the diver.... | 01/06/1998 |
| 5701276 | Underwater communication system by means of coded pulses An underwater communication system by coded pulses, includes a transmitter placed at a surface of a body of water, for transmitting coded pulses, the transmitter having a transmitter circuit for generating the coded pulses, the transmitter circuit includi... | 12/23/1997 |
| 5646366 | Underwater defense system A communications system of an underwater defense system is decoupled from unmanned underwater vehicle (UUV) when the UUV is deployed under the surface of the water. A housing attached to the UUV has a communications wire spooled therein with a first end ... | 07/08/1997 |
| 5598152 | Mine sweeping system for magnetic and non-magnetic mines A mine sweeping system including deployable horizontal antennas to establ a detection and navigation grid extending underwater from a beach to a distance offshore. A computer-controlled transmitter unit having a waveform generator and amplifier, transmit... | 01/28/1997 |
| 5592156 | Underwater alpha-numeric communication system A bi-directional underwater communication system provides a submerged operator the ability to communicate with a surface operator. Provides two transceivers both containing keypads and displays capable of transmitting and receiving alpha-numeric data. The... | 01/07/1997 |
