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| Number | Title | Issue Date |
| 4220832 | Two-way speaker with transformer-coupled split coil A loudspeaker with an overlay or bifilar wound split voice coil, a coil for driving a higher frequency speaker such as a tweeter, and a push-pull audio amplifier circuit directly coupled with the coils. The configuration of the split coil provides two coa... | 09/02/1980 |
| 4201886 | Plural concentric moving coil speaker with push-pull voltage follower direct coupling A loudspeaker with an overlay voice coil and directly coupled push-pull audio amplifier circuit is disclosed. The overlay configuration compensates for increased input impedance at high frequencies by introducing a transformer coupling between two co-axia... | 05/06/1980 |
| 4171873 | Angularly adjustable vehicle mirror An angularly adjustable vehicle mirror with vibration damping. A casing, adapted to be secured in a mirror housing, supports a mirror back member for pivoting by a mechanism within the casing. Two rigid projections from the casing have surfaces extending ... | 10/23/1979 |
| 4157547 | Splitter for antenna for AM-FM, CB and method of conversion An electrical circuit and method for providing electrical coupling from a CB antenna to both a CB (Citizen's Band--Class D) transceiver and to an AM-FM receiver (amplitude modulation--frequency modulation) whereby only a single antenna need be used for bo... | 06/05/1979 |
| 4142216 | Aural-visual product display An aural-visual display system especially suitable for visually displaying a number of items, such as products, and playing a recorded message relating to a displayed item in response to actuation of a selector corresponding to the item. One of a number o... | 02/27/1979 |
| 4041793 | Electrically adjustable vehicle accessory An assembly, specifically a mirror assembly for a motor vehicle, in part angularly adjustable by an electric motor and drive mechanism. A fixed motor drives a worm that is angularly movable through a flexible coupling into selective engagement with one of... | 08/16/1977 |
| 4041498 | Collapsible adjustable length citizens-band antenna with coil concealing structure A collapsible antenna, adjustable in length and carrying an impedance-matching coil, especially suitable for use with citizens-band transceivers that are operated from automobiles. When the antenna is collapsed, the coil is concealed within an antenna sup... | 08/09/1977 |
| 3961543 | Electric adjusting means for azimuth and elevation adjustment An adjusting means for azimuth and elevation adjustment comprising a hollow support and a universal joint connected to the support and to the part to be adjusted. A reversible electric motor is mounted in the support having a shaft, a reduction gear and a... | 06/08/1976 |
| 3933058 | Universal support for vehicle mirror A support for effecting limited universal adjustment of a part, comprising a universal joint member formed of moldable vibration absorbing material and comprising an elongated body having bearing means thereon for pivotally mounting the joint on a support... | 01/20/1976 |
