US4754852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Simulated rock speaker assembly
Assignee: ROCKUSTICS Inc
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Filing: 1987-03-23
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Granted: 1988-07-05
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Expires: 2007-03-23
Abstract
Abstract A simulated rock speaker cabinet in the form of a natural rock has build-up portions of modeling clay which include a pattern of small diameter holes to form speaker grills at longitudinally spaced positions. A chicken wire ring provides structural reinforcement to the speaker cabinet. The artificial rock cabinet may be molded of various hydrolitic cements, magnesite cement, a suitable catalytic plastic resin to which pigment or other colorants may be added along with glass or rock chips, to provide the simulated rock cabinet with an external appearance which corresponds to various natural rocks. The speaker cabinet has speakers and the various electronic components of the speaker system housed within the speaker cabinet and may be coated with water-proofing and weather-proofing material with the speakers molded into the wells and facing the grills. An end plug may be adhesively sealed to the opening within the base of the speaker cabinet and suitably sealed by Hydrostone or other cementous material.
Inventors
- 👤 Anthony F. Mule
- 👤 Bruce R. Marcel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:06
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/02; H04R1/20; H04R1/22; H04R1/28; H04R1/2869; H04R1/2876; H04R1/288; H04R1/2884; H04R1/2888; H04R31/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
153 words
A water-proof, simulated rock speaker cabinet comprising: a cast hollow simulated rock cabinet body of inverted U-shaped cross-section having a base portion with an opening therein and forming interiorly a resonant chamber, said cast hollow body having an irregular outer surface simulating the configuration of a natural rock, a plurality of speaker mounting wells formed within said cast hollow body and extending from said chamber into said cast body and terminating short of said irregular outer surface, a pattern of small diameter holes within said cast hollow body aligned with said wells, speakers mounted respectively within said speaker wells to form speaker guides facing said pattern of small diameter hole, and a plug sized to said opening within said cast body base and closing off said opening, a hole within said body, an electrical lead connected to said speakers and extending through said hole and means sealing said electrical lead within said hole.
Claim 2
Dependent Claim
153 words
A water-proof, simulated rock speaker cabinet comprising: a cast hollow simulated rock cabinet body of inverted U-shaped cross-section having a base portion with an opening therein and forming interiorly a resonant chamber, said cast hollow body having an irregular outer surface simulating the configuration of a natural rock, a plurality of speaker mounting wells formed within said cast hollow body and extending from said chamber into said cast body and terminating short of said irregular outer surface, a pattern of small diameter holes within said cast hollow body aligned with said wells, speakers mounted respectively within said speaker wells to form speaker guides facing said pattern of small diameter hole, and a plug sized to said opening within said cast body base and closing off said opening, a hole within said body, an electrical lead connected to said speakers and extending through said hole and means sealing said electrical lead within said hole.
Claim 3
Dependent Claim
33 words
The simulated rock speaker cabinet as claimed in claim 1 wherein said body is formed of a hydrolitic cement including pigment to provide a texture and color simulating that of a natural rock.
Claim 4
Dependent Claim
33 words
The speaker cabinet as claimed in claim 1, wherein said hollow cast body is formed of one material from the group consisting of plastic magnesium, calcite magnesite, caustic magnesite and lite burned magnesite.
Claim 5
Dependent Claim
38 words
The simulated rock speaker cabinet as claimed in claim 3, wherein said cast body further comprises a pigment and glass and marble chips such that the cast body is marble-like and translucent to duplicate igneous and metamorphic rock.
Claim 6
Dependent Claim
29 words
The simulated rock speaker cabinet as claimed in claim 1, wherein said cast hollow body is formed of plastic resin and a pigment to form an artificial stone-like substance.
Claim 7
Dependent Claim
33 words
The speaker cabinet as claimed in claim 2, further comprising a silicone ester coating on the exterior surface of the cast hollow body to improve the water-proofing and weather-proofing of said speaker cabinet.
Claim 8
Dependent Claim
32 words
The water-proof, simulated rock speaker cabinet as claimed in claim 1, wherein said speakers further comprise sponge surrounds mounted to the cast hollow body at said well with a water-proof speaker cement.
Claim 9
Dependent Claim
58 words
The water-proof simulated rock speaker cabinet as claimed in claim 7, wherein said speaker include peripheral rims and said cabinet further comprises a Hydrostone gasket molded over the rims of the speakers and between the speakers and the speaker grills formed by the pattern of small diameter holes within said body opening to said wells receiving said speakers.
Claim 10
Dependent Claim
36 words
The water-proof simulated rock speaker cabinet as claimed in claim 8, wherein an automotive undercoat material is spray coated over the complete interior of the speaker cabinet chamber including said wells and the speakers mounted therein.
Claim 11
Dependent Claim
57 words
The water-proof simulated rock speaker cabinet as claimed in claim 1, further comprising a layer of Hydrostone extending over the exterior surface of the plug and bonded to the sides of the speaker cabinet at said opening within the base thereof to seal off said chamber from the exterior of the speaker cabinet at said base opening.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-07-05 | 1992-01-04 | 1992-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-05 | 1996-01-04 | 1996-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-05 | 2000-01-04 | 2000-07-05 | $7700.00 | Window Closed / Lapsed |