US4303142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined acoustical transducer and grille
Assignee: International Jensen Inc
•
Filing: 1980-08-11
•
Granted: 1981-12-01
•
Expires: 2000-08-11
Abstract
Abstract An acoustical transducer and grille combined into a single unit. The grille is acoustically transparent and includes a plurality of wave guides separated for through-passage of sound. Situated in the midst of the grille is a mounting for the acoustical transducer. The transducer mounting has a central opening and an annular groove formed about the periphery of the central opening into which the acoustical transducer is mounted. A second acoustical transducer, larger in dimension than the first acoustical transducer, may be employed as well, also mounted within the confines of the grille. For greatest acoustical clarity, the first and second acoustical transducers are coaxially oriented.
Inventors
- 👤 Keith F. Urban
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:12
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/20; H04R1/22; H04R1/24; H04R1/02; H04R1/023; H04R9/00; H04R9/06; H04R9/063
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
133 words
A combined acoustical transducer and grille comprising a. an acoustically transparent, rigid grille having an exposed front side and a rear side for mounting of an acoustical transducer and including a plurality of wave guides separated for through-passage of sound, b. a transducer mounting situated in the midst of said grille and located within the confines of said wave guides, said transducer mounting including a central aperture and an annular groove formed about the periphery of said central aperture, said groove being open toward the rear side of said grille, c. an acoustical transducer having a peripheral dimension approximately equal to the dimensions of said groove, d. means attaching said acoustical transducer to said groove, and e. a second wave guide spanning said central aperture to disperse sound emanating from said acoustical transducer.
Claim 2
Dependent Claim
133 words
A combined acoustical transducer and grille comprising a. an acoustically transparent, rigid grille having an exposed front side and a rear side for mounting of an acoustical transducer and including a plurality of wave guides separated for through-passage of sound, b. a transducer mounting situated in the midst of said grille and located within the confines of said wave guides, said transducer mounting including a central aperture and an annular groove formed about the periphery of said central aperture, said groove being open toward the rear side of said grille, c. an acoustical transducer having a peripheral dimension approximately equal to the dimensions of said groove, d. means attaching said acoustical transducer to said groove, and e. a second wave guide spanning said central aperture to disperse sound emanating from said acoustical transducer.
Claim 3
Dependent Claim
38 words
The combination according to claim 1 further including a second acoustical transducer of greater dimension than the first-mentioned acoustical transducer, said second acoustical transducer being attached to the rear side of said rigid grille within the margins thereof.
Claim 4
Dependent Claim
26 words
The combination according to claim 2 in which the rear side of said rigid grille includes a recess into which said second acoustical transducer is attached.
Claim 5
Dependent Claim
17 words
The combination according to claim 2 in which said first and second acoustical transducers are coaxially oriented.
Claim 6
Dependent Claim
21 words
The combination according to claim 1 in which said transducer mounting protrudes outwardly from the front side of said rigid grille.
Claim 7
Dependent Claim
13 words
The combination according to claim 1 in which said wave guides are parallel.
References Cited (Backward Citations)
US4182429A
Cited
US4196791A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-11-30 | 1985-06-01 | 1985-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-30 | 1989-06-01 | 1989-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-30 | 1993-06-01 | 1993-12-01 | $7700.00 | Window Closed / Lapsed |