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A fork with timer for providing a cue to a user after an elapsed period of time for indicating that another bite of food using the fork may be taken.
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| Number | Title | Issue Date |
| 5787052 | Snap action rotary pulser A pressure pulse generator, or "pulser," and methods for operation are described. The pulser is constructed of a stator and rotor mounted within a housing, each being configured with a central hub and one or more radially extending lobes. An equal number ... | 07/28/1998 |
| 5583827 | Measurement-while-drilling system and method In a Measurement-While-Drilling system, selecting the fixed frequency in a pulse signal generator utilizes constructive interference to enhance the signal level in an amplitude modulated signal. The pulse generation system preferably includes a plurality ... | 12/10/1996 |
| 4852510 | Scuba whistle A resonant tube having an inlet fitting at one end for connection to the regulator hose attached to an intermediate pressure port on the first stage of a scuba diver's regulator and containing therein a sound generator responsive to pressurized air for ge... | 08/01/1989 |
| 4514834 | Expendable underwater acoustic projector An expendable sound source provides a cost effective projection of acoustic nergies in the ocean. A tubular housing contains a d.c. motor that locates its shaft coaxial with the housing. Cylindrically-shaped camming blocks engage spurs in a pair of rigid p... | 04/30/1985 |
| 4332017 | Mechanoacoustic transducer for use in transmitting high acoustic power densities into geological formations such as oil-saturated sandstone or shale A mechanoacoustic transducer is described which comprises a plurality of circumferentially spaced contiguous vibratile plate members which are driven in phase by a rotating cylindrical cam. The cam is shaped to provide radial oscillatory displacements of ... | 05/25/1982 |
| 4324135 | Speed indicator for fishing gear A water speed sensor suspended from a fishing boat at the depth fishing gear is being trolled actuates an underwater transducer to transmit a sonic signal detected by an underwater transducer mounted on the boat. The output of the transmitter transducer i... | 04/13/1982 |
| 4198706 | Generation of low frequency sound under water 1. Apparatus for the generation of sound under water including a siren coising a cylindrical stator casing open at each end and having at least one radial port and a cylindrical rotor member open at each end and mounted concentrically with respect to sai... | 04/15/1980 |
| 4007805 | Cavity producing underwater sound source 1. An acoustical source for minesweeping operations comprising a stator ing outer and inner surfaces which are surfaces of revolution and an open port connecting said outer and inner surfaces, an external rotor adapted to be rotated around said outer sur... | 02/15/1977 |
