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System for magnetically attaching templeless eyewear to a person
A system of eyewear that eliminates the need for hinges on the frames of the eyewear.
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| Number | Title | Issue Date |
| 4135600 | Loudspeaker system A loudspeaker system has a cabinet in which a loudspeaker is mounted, the cabinet supporting therein a hollow duct which provides sound communication between the exterior and interior of the cabinet. A standing wave prevention member made of a sound absor... | 01/23/1979 |
| 4133975 | Loudspeaker system with broad image source with directionality control for the tweeter A loudspeaker system comprises a woofer in a front panel, a midrange driver facing to the front and a tweeter in a corner panel separated from the midrange driver by the woofer and pointing to the front and side with a crossover network arranged to energi... | 01/09/1979 |
| 4131179 | High fidelity speaker system A speaker system comprised of an enclosure with a partition inside. The partition, set apart from a wall of the enclosure, has an aperture in it. A loudspeaker, mounted at the wall, has a speaker cone projecting into the aperture in the partition.... | 12/26/1978 |
| 4131180 | Speaker system A speaker system comprising a speaker unit, a drone cone driven by the speaker unit; and a removable weight loaded on the front of the drone cone which can be exchanged from the front of the drone cone.... | 12/26/1978 |
| 4128738 | Compact transmission line loudspeaker system A compact loudspeaker system adapted for the reproduction of sound at minimum distortion. Two small diameter direct radiator loudspeakers and a matching crossover network are mounted in a common enclosure having a short non-folded transmission line comple... | 12/05/1978 |
| 4126204 | Speaker system In a bass-reflex type speaker system, in which sound signal waves radiating from the back of a speaker within a cabinet are emitted out through a hollow duct while the phase of the sound signal wave is reversed, the improvement comprising at least one div... | 11/21/1978 |
| 4083426 | Loud speaker apparatus The invention relates to a loud speaker system, and more particularly, the utilization of space to the utmost of efficiency for the reproduction of sound. The single unit of a loud speaker apparatus is most effectively mounted at the 90° intersection of ... | 04/11/1978 |
| 4082159 | Ceramic speaker enclosure A reflex type speaker enclosure integrally formed of ceramic material having a shell of hemispheroidal configuration and having an inturned speaker mounting flange adjacent the equatorial plane. The enclosure is adapted to be suspended by structure extend... | 04/04/1978 |
| 4076097 | Augmented passive radiator loudspeaker A resonant loudspeaker system which produces improved reproduction of low frequency sound comprises a coupling chamber which encloses the rear of the low frequency driver and which contains two additional openings in which are suspended diaphrams free to ... | 02/28/1978 |
| 3993162 | Acoustic speaker system A speaker enclosure for a stereophonic sound system is disclosed. The speaker is mounted in a chamber, the enclosure of which is connected to a tube of relatively long length and of circular cross-section. The construction is such that phase-inversion occ... | 11/23/1976 |
| 3980154 | Cabinet for improving the sound output of an amplifier A cabinet for improving the sound output of an amplifier including an upright housing having a horizontal partition dividing the interior of the housing into an upper portion and a lower portion, a speaker mounted in the horizontal partition and oriented ... | 09/14/1976 |
| 3978941 | Speaker enclosure An improved speaker enclosure for providing an acoustical balanced output with improved audio quality at low level reproduction. The enclosure includes a low sonic frequency pressure induced sonic wave amplification resulting from in phase reflection mech... | 09/07/1976 |
| 3952159 | Ducted port reflex enclosure In a bass-reflex sound reproducing system, a ducted port is utilized to reduce distortion in the lower portion of the frequency range. To increase relative sound pressure level in that lower portion, the enclosure is constructed to exhibit a predetermined... | 04/20/1976 |
| 3945461 | Sound speaker system The sound speaker system comprises an elongated vertical cylinder having an overall length equal to an integral multiple of its inside diameter. The cylinder is open at its upper and lower ends and a loudspeaker is positioned adjacent its lower end. The d... | 03/23/1976 |
| 3941207 | Loudspeaker assembly A loudspeaker assembly comprising a loudspeaker including a front mounting flange having front surfaces, and an enclosure for the loudspeaker including a front wall and a rear wall and a top wall and a bottom wall and opposed side walls all having at leas... | 03/02/1976 |
