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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 |
| 5508680 | Solderless solenoid assembly for use in an electrical signaling device A solderless solenoid assembly, preferably for use in an electrical signaling device. The solenoid assembly is formed by wrapping conductive wire around a bobbin, forming a solenoid coil. A plurality of terminal displacement slots are attached to the bobb... | 04/16/1996 |
| 5475368 | Key chain alarm and light A key chain alarm and light is disclosed that overcomes the problems associated with prior art personal alarms. The invention combines the functionality of a key chain, flashlight and an alarm into a unitary assembly. The invention is physically diminutiv... | 12/12/1995 |
| 5467323 | Electroacoustic transducer In an electroacoustic transducer, the opening portion of a casing body which contains therein a magnetic driving portion for converting an electric signal into a sound is closed by a casing cap to form a resonance space (resonance chamber) which resonates... | 11/14/1995 |
| 5426825 | Device and method for flexibly attaching a pager A flexibly adjustable mounting clip assembly and method for providing the assembly for a pager includes a swivel assembly (104) for raising and rotating the mounting clip (102) approximately 180° to provide a reversibly positioned clip. The clip allows f... | 06/27/1995 |
| 5420563 | Motor-vehicle horn The horn includes a support casing (1 to 3) in which the peripheries of two facing diaphragms (10, 11) are restrained, a chamber (12) of variable volume being defined between the diaphragms (10, 11) and communicating with a sound-emission duct (50, 51, 70... | 05/30/1995 |
| 5287084 | Thin buzzer A small and thin buzzer which can be mounted on a printed circuit board. A buzzer assembly and a lead connecting chamber are provided in a buzzer case. One end of each of the terminals for external connection is extended to the inside of the lead connecti... | 02/15/1994 |
| 5270680 | Loud horn with respiration pipe and in particular for motor vehicles A loud horn for motor vehicles which comprises a hollow housing sealed off by a diaphragm and bearing a vibration electromagnetic generator inside the housing with a coil frame in which the housing is provided with a hole connecting the inside of the hous... | 12/14/1993 |
| 5263435 | Volute horn and method of manufacturing A volute horn is assembled by integrally attaching a horn body to a resonating device forming a volute sound path. The horn body includes a vibration generating unit for vibrating diaphragm to create a sound, and a cover facing the outer surface of the di... | 11/23/1993 |
| 5099220 | Waterproof flush mount marine horn assembly A waterproof flush-mountable marine horn assembly includes a generally cup-shaped housing having a bottom wall and upstanding side wall means. The side wall means includes a top edge portion which defines a top rim of the housing, which top rim defines th... | 03/24/1992 |
| 5070319 | Door ajar alarm for refrigeration unit An alarm system for signalling when a door of a refrigeration unit compartment is not fully closed comprises an alarm condition sensing system having a door sealing gasket magnet and a magnetically actuated switch. The gasket magnet produces an elongated ... | 12/03/1991 |
| 4823110 | Tone generator with improved diaphragm mounting A tone generator of the type in which a housing defines a pair of communicating chambers one of which is closed except for an area of communication with the other chamber. A thin flat diaphragm of circular configuration is mounted in an operative position... | 04/18/1989 |
| 4796725 | Electrostatic transducer An electrostatic transducer which includes a vibrating membrane provided between a fixed electrode and a movable electrode to which electric signals are applied. The transducer further includes a plurality of depressions provided concentrically with a cen... | 01/10/1989 |
| 4763109 | Acoustical vehicle horn with improved vent The motor chamber of an automotive vehicle horn is vented to the atmosphere through a hole in the diaphragm. The hole is located on a vibratory portion of the diaphragm and is laser drilled to obtain an accurately dimensioned hole with smooth edges.... | 08/09/1988 |
| 4728933 | Miniature dual cavity ringer A ringer employs a low-cost miniature transducer, having a reverberant cavity, mounted in a cylindrical housing which has a second reverberant cavity in front of the miniature transducer. A very large acoustic output power is achieved when the ringer is e... | 03/01/1988 |
| 4717906 | Electric horn with improved pole piece and adjusting cap An electric horn, especially adapted for automotive vehicles includes a pole piece and adjusting cap for the driving motor. The pole piece and adjusting cap include a cylindrical shank and an enlarged head including a conical flange. The flange terminates... | 01/05/1988 |
| 4541505 | Acoustic unit base for electropneumatic horns An improved acoustic unit base for electropneumatic horns, of the type comprising a main body peripherally seamed to an end piece with a diaphragm therebetween. Said main body is formed by connecting together a first and a second member of deep-drawn shee... | 09/17/1985 |
| 4441099 | Diaphragm horn An electric diaphragm horn includes a housing having a diaphragm mounted thereon defining a chamber, the chamber being vented to the atmosphere through the diaphragm.... | 04/03/1984 |
| 4412593 | Structure for supporting automobile horn A structure for supporting an automobile horn. The structure includes a radiator grille made of a synthetic resin and having a recess at its one side for receiving the body of the horn, such that the sound radiating front portion of the horn is directed t... | 11/01/1983 |
| 4410881 | Electric horn with means for controlling curvature of the striker carrier The horn comprises a magnetically permeable housing with an electromagnet mounted therein and a diaphragm attached thereto. The electromagnet core may have an inclined bearing surface at one end thereof. A striker is disposed between the electromagnet bea... | 10/18/1983 |
| 4389123 | Electronic alarm watch A waterproof construction around a miniature buzzer incorporated in an electronic alarm watch depends on a gasket alone. The construction is such that the gasket can secure a resonant plate without any storage of distortion in the resonant plate. This fea... | 06/21/1983 |
| 4361952 | Method of adjusting air gap of an electric horn The invention pertains to an electric diaphragm horn and the method of air gap adjustment wherein the horn utilizes an electric coil mounted with a housing which includes a pole piece; a diaphragm being mounted upon the housing including a plunger to be s... | 12/07/1982 |
| 4328486 | Electric horn with improved striker assembly A horn includes a magnetically permeable housing having a diaphragm attached thereto and an electromagnet also attached to the housing. A carrier member loosely and unattachedly rests on a shelf in the housing and is attached to a striker member of magnet... | 05/04/1982 |
| 4314522 | Acoustic electropneumatic signal generator, particularly for automotive vehicles A signal generator comprising one or two horns and an electrically operated ir compressor is secured to a vehicle body, directly or indirectly, by a screw connection which includes a bolt with a hexagonal head received in a seat on a muff of each horn, the... | 02/09/1982 |
| 4286257 | Tone generator A tone generator for producing an audible sound for a predetermined time period in response to the occurrence of one or more predetermined conditions. The tone generator comprises a diaphragm mounted within a resonant sound cavity that is activated by an ... | 08/25/1981 |
| 4284857 | Tone generator An electromagnetic tone generator having a pole piece adapted to be mounted on a circuit board and to be incorporated in the circuitry thereof, an electromagnetic coil sub-assembly adapted for mounting on a coil carrying portion of the pole piece and to b... | 08/18/1981 |
| 4257036 | Tone generator A tone generator for producing an audible sound for a predetermined time period in response to the occurrence of one or more predetermined conditions. The tone generator comprises a diaphragm mounted within a resonant sound cavity that is activated by an ... | 03/17/1981 |
| 4212001 | Electric horn In an electric horn for an automobile, a diaphragm is bent at its periphery to define an effective vibration area and a flange portion of a housing is also bent to hold the peripheral edge of the diaphragm. As a result, good sound and sealing are ensured ... | 07/08/1980 |
| 4175262 | Buzzer with rigid electrical leads A buzzer comprises a vibrator unit including a diaphragm which is supported within a housing, and a drive unit including a coil assembly which electromagnetically excites the vibrator unit. The coil assembly includes a bobbin of a non-magnetic and non-con... | 11/20/1979 |
| 4160132 | Electromagnetic acoustic transducer with its air gap established at assembly by counteracting springs A tone generator having a diaphragm and an electromagnet for vibrating the diaphragm to produce sound, the bobbin of the electromagnet being held in a fixed, predetermined relation to the diaphragm and connected to the retaining ring which holds the diaph... | 07/03/1979 |
| 4145688 | Low cost buzzer A buzzer alarm has an electrically insulative housing fabricated of two molded pieces of electrically insulative material with a recessed vibratable diaphragm section constructed as a portion thereof. The buzzer alarm includes cooperating vibrating means ... | 03/20/1979 |
| 4135473 | Vehicular sound generator A vehicular warning device comprises a sound generator of electromagnetic electropneumatic type with two components, one of them including a diaphragm, that are relatively axially movable in a generally cylindrical housing supporting both components. The... | 01/23/1979 |
| 4134200 | Method of making an electromagnetic sound generator An electromagnetic sound generator, such as an automobile horn, has a thin-walled ferromagnetic housing closed at one end by a membrane which carries an armature extending into an electromagnetic coil mounted in the housing. The rim of the membrane is emb... | 01/16/1979 |
| 4116158 | Vibrating membrane horns Vibrating membrane horn of the type wherein a membrane is applied on a peripheral flange on a case in such a way as to close said case. Said case contains a vibrations generator acting on said membrane and a gasket is interposed between said membrane and ... | 09/26/1978 |
| 4075627 | Electric horn A horn of improved, compact and efficient construction, formed of a minimum of components, is characterized by an electromagnetic coil within a closely confining magnetically permeable housing having an open end and relatively imperforate wall areas, a di... | 02/21/1978 |
| 4057799 | Electro-acoustic signalling horns An electro-acoustic signalling horn of the type comprising a case containing an electromagnetic excitation system, a diaphragm subjected to the action of said system, and a sound amplifying box extending a labyrinth chamber. Said box is in a single moulde... | 11/08/1977 |
| 4016376 | Concave diaphragm for electro-acoustic transducer An electro-acoustic transducer, adapted to constitute part of an alarm unit, includes a magnetic diaphragm adjacent the core of the transducer. The case for the transducer is so configured that it forces the diaphragm into a concave shape, whereby the dia... | 04/05/1977 |
| 4005413 | Buzzer construction and method of adjusting the same A buzzer structure, of the type comprising a housing having a coil unit therein and an armature mounted for vibratory movement adjacent the coil unit, includes in one embodiment an integral portion of the housing which is bent inwardly into engagement wit... | 01/25/1977 |
| 4000715 | Acoustic alarm device with sound attenuator An electromagnetic acoustic alarm device including a casing formed in part by a bell-shaped wall which defines together with a membrane secured to the casing by means of the bell-shaped wall a chamber, the front portion of the wall provided with at least ... | 01/04/1977 |
