Bizarre Patents
Mouthguard made at least partially from an edible candy
A mouthguard includes a U-shaped upper bite plate which removably fits over upper teeth of a person, with the entire upper bite plate being made from a soft, deformable and edible gummi candy.
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| Number | Title | Issue Date |
| 5528696 | Hearing aid A hearing aid with a microphone, a preamplifier connected behind it which is connected to a signal processing voltage-controlled circuit which is provided with a voltage-controlled filter, for example, which is connected to the output amplifier controllin... | 06/18/1996 |
| 5359321 | Remote control device for controlling apparatuses carried on the body, in particular hearing aids Remote control device for controlling apparatuses to be carried on the body, in particular hearing aids, and being provided with a circuit responsive to control signals. In order to give the remote control device a particularly simple and reliable design,... | 10/25/1994 |
| 5263089 | Hearing aid A hearing aid with a microphone, with at least one amplifier fed with the signals from said microphone, whereby the amplifier cooperates with a filter of a higher order for influencing the frequency response, and with a loudspeaker which transforms the am... | 11/16/1993 |
| 5214709 | Hearing aid for persons with an impaired hearing faculty Hearing aid for persons with an impaired hearing faculty, including a directional microphone whose pick-up characteristic can be altered, the pick-up characteristic being automatically controlled as a function of the input or output signal in such a way t... | 05/25/1993 |
| 4964170 | Hearing aid A hearing aid particularly useful for placement behind an ear of a hard-of hearing person comprises a multi-part housing containing electrical hearing aid components, detachable fastening elements for holding the parts of the housing together, and an audi... | 10/16/1990 |
| 4790019 | Remote hearing aid volume control A hearing aid comprises a microphone, a battery-operated earphone, and amplifying circuit connected to the microphone output, the amplifying circuit including a frequency-selective circuit component and a sound level adjustment circuit component connected... | 12/06/1988 |
| 4657106 | "Ear" hearing aid A hearing aid adapted to be worn in the ear, comprises a housing receiving a sound transducer and a sound amplifier, the housing being shaped to fit into the ear and having an upper rim, a mounting plate defining a space for holding a battery and a sound ... | 04/14/1987 |
| 4607720 | Hearing aid To provide a mass-producible hearing aid adapted to be inserted into the external passage of the vast majority of human ears while leaving the concha unencumbered and without requiring individual impressions, the invention proposes a hearing aid which com... | 08/26/1986 |
| 4417104 | Plug for miniature receiver Plug for miniature receiver, especially for pocket hearing aids for the hard-of-hearing, with a plug body (7) and at least one plug pin (9) projecting out of the plug body (7). In order to avoid a gap between the receiver and the plugged-in plug, and ther... | 11/22/1983 |
| 4232405 | Prosthesis joint An artificial elbow joint comprises a detent wheel rotatably mounted on the forearm and fixedly connected to the upper arm, the detent wheel having a periphery defining a series of detent notches and a lug affixed thereto and projecting from the periphery... | 11/11/1980 |
| 4087730 | Electric control circuit At least one comparator circuit and one timing circuit are provided so that the operation of a control element in response to the tensing of the muscles of a patient depends upon the time duration during which the patient tenses the muscle. Further timing... | 05/02/1978 |
| 4084267 | Drive for an orthosis or a prosthesis A movable limb rehabilitation device such as an orthosis or prosthesis part is connected to a drive by a transmission which converts rotary into linear reciprocatory motion. The transmission includes a cylinder coupled to the drive for rotation therewith ... | 04/18/1978 |
