US4326599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speaker bezel/retainer
Assignee: McDonnell Douglas Corp
•
Filing: 1981-06-01
•
Granted: 1982-04-27
•
Expires: 2001-06-01
Abstract
Abstract A speaker grille bezel-retainer terminating in a tubular portion with multiple groups of radially intermittent serrations axially displaced to receive a matching bezel ring having an inside diameter with alternate tabs and cut-outs and the tab is shaped to form a ramp to axially advance the ring on the bezel while rotationally engaging spaced, aligned pairs of serrations.
Inventors
- 👤 Phillip B. Thompson
- 👤 Hill W. Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:54
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/02; H04R1/023
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
163 words
A speaker grille bezel-retainer comprising: a bezel terminating in a tubular portion having at least three groups of planar but radially intermittent, circumferentially oriented and axially displaced serrations arranged on the outside of said tubular portion with said radial intermissions at least equal to the length of said serrations; a bezel ring having an inside diameter sized to slideably engage the outside diameter of said tubular portion of said bezel and having intermittent cut-outs stepped to a larger diameter so as to leave alternate tabs and cut-outs, said cut-outs oriented and sized to clear said at least three groups of planar but radially intermittent, circumferentially oriented and axially displaced serrations on said tubular portion of said bezel and said tabs shaped and sized to form a ramp which axially advances said bezel ring when said bezel ring is rotated relative to said bezel with said ramp engaging between aligned parts of said serrations; and means for closing said inside diameter of said bezel.
Claim 2
Dependent Claim
163 words
A speaker grille bezel-retainer comprising: a bezel terminating in a tubular portion having at least three groups of planar but radially intermittent, circumferentially oriented and axially displaced serrations arranged on the outside of said tubular portion with said radial intermissions at least equal to the length of said serrations; a bezel ring having an inside diameter sized to slideably engage the outside diameter of said tubular portion of said bezel and having intermittent cut-outs stepped to a larger diameter so as to leave alternate tabs and cut-outs, said cut-outs oriented and sized to clear said at least three groups of planar but radially intermittent, circumferentially oriented and axially displaced serrations on said tubular portion of said bezel and said tabs shaped and sized to form a ramp which axially advances said bezel ring when said bezel ring is rotated relative to said bezel with said ramp engaging between aligned parts of said serrations; and means for closing said inside diameter of said bezel.
Claim 3
Dependent Claim
33 words
The speaker grille bezel-retainer of claim 1 further comprising at least one stop on said bezel ring to prevent further rotation of said bezel ring relative to said bezel after full circumferential engagement.
Claim 4
Dependent Claim
25 words
The speaker grille bezel-retainer of claim 1 wherein said bezel and said means for closing said inside diameter of said bezel are one integral piece.
Claim 5
Dependent Claim
32 words
The speaker grille bezel-retainer of claim 2 further comprising flat serrations on one surface of said bezel ring so as to provide a better gripping surface during manual installation of said bezel-retainer.
Claim 6
Dependent Claim
42 words
The speaker grille bezel-retainer of claim 2 further comprising a lip protruding from the inside diameter surface of said tubular portion of said bezel so as to provide a support surface for said means for closing said inside diameter of said bezel.
Claim 7
Dependent Claim
27 words
The speaker grille bezel-retainer of claim 4 wherein said means for closing said inside diameter of said bezel is perforated aluminum and said bezel is molded plastic.
References Cited (Backward Citations)
US3140754A
Cited
US3952834A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-04-26 | 1985-10-26 | 1986-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-04-26 | 1989-10-26 | 1990-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-04-26 | 1993-10-26 | 1994-04-27 | $7700.00 | Window Closed / Lapsed |