US3938618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speaker grille screen and mounting structure
Assignee: Motorola Solutions Inc
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Filing: 1975-03-18
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Granted: 1976-02-17
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Expires: 1995-03-18
Abstract
Abstract A speaker system for a small radio device includes a cover plate having slots therein and a rigid grille screen having channels which extend into the slots. The cover plate and grille screen are generally planar and parallel to each other, and the channels in the screen have portions generally perpendicular to the plate and screen which are spaced from the edges of the slots, with openings therein through which sound is transmitted. A felt disc is positioned over the screen, and the speaker is positioned against the felt disc. An annular bracket engages the speaker rim and is secured to the cover plate to hold the speaker system assembled. The bracket is of semi-circular cross-section with the flat side thereof engaging the speaker, and has integral extensions which are secured to the cover plate to clamp the speaker against the felt disc.
Inventors
- 👤 Pasquale Ambruoso, Sr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:52
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/02; H04R1/023; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/4962
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
70 words
A protective structure for a sound translating device which provides sound transmission from the device, including in combination: a plate of high strength material having an opening therein, a rigid grille screen having a projection formed therein which is shaped to extend into said opening, said projection having an aperture therein adjacent an edge of said opening for the passage of sound, and means securing said screen to said plate.
Claim 2
Dependent Claim
70 words
A protective structure for a sound translating device which provides sound transmission from the device, including in combination: a plate of high strength material having an opening therein, a rigid grille screen having a projection formed therein which is shaped to extend into said opening, said projection having an aperture therein adjacent an edge of said opening for the passage of sound, and means securing said screen to said plate.
Claim 3
Dependent Claim
60 words
The structure of claim 1 wherein said screen is generally of planar shape and extends parallel to said plate, and said projection has a portion extending substantially perpendicular to the plane of said screen and which is spaced from the edge of said opening in said plate, and wherein said aperture in said projection is in said perpendicular portion thereof.
Claim 4
Dependent Claim
42 words
The structure of claim 2 wherein said opening in said plate is an elongated slot, and said projection in said screen is an elongated channel formed therein which extends into said slot, and wherein said projection has a plurality of apertures therein.
Claim 5
Dependent Claim
49 words
The structure of claim 3 wherein said plate has a plurality of elongated slots therein, and said screen has a plurality of elongated channels therein which extend into said slots, with said apertures being in portions of said channels which extend substantially perpendicular to the plane of said screen.
Claim 6
Dependent Claim
27 words
The structure of claim 4 wherein said apertures are in the elongated perpendicularly extending portions of said channels and are spaced from the edges of said slots.
Claim 7
Dependent Claim
29 words
The structure of claim 1 wherein said plate has projections extending therefrom, and said screen has openings therein for receiving said projections for securing said screen to said plate.
Claim 8
Dependent Claim
31 words
The structure of claim 6 wherein said plate has a rim formed thereon of a shape to receive said screen to facilitate placement of said screen with respect to said plate.
Claim 9
Dependent Claim
17 words
The structure of claim 1 further including means to secure a sound translating device to said plate.
Claim 10
Dependent Claim
23 words
The structure of claim 8 including a felt disc positioned against said screen adapted to have the sound translating device engaging the same.
Claim 11
Dependent Claim
47 words
The structure of claim 8 wherein said means to secure a sound translating device is an annular bracket having a generally semi-circular cross-section with extensions thereon, with an edge of said bracket engaging the sound translating device, and including screws for securing said extensions to said plate.
Claim 12
Dependent Claim
17 words
The structure of claim 10 wherein said plate has threaded bosses formed thereon for receiving said screws.
Claim 13
Dependent Claim
28 words
The structure of claim 8 wherein said plate has a rim formed thereon which defines a plurality of recesses for positioning a sound translating device with respect thereto.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-16 | 1979-08-18 | 1980-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-16 | 1983-08-18 | 1984-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-16 | 1987-08-18 | 1988-02-17 | $7700.00 | Window Closed / Lapsed |