Patent US4138598A successfully refreshed from Google Patents.
US4138598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Headset construction
Assignee: AKG Acoustics GmbH
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Filing: 1977-08-26
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Granted: 1979-02-06
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Expires: 1997-08-26
Abstract
Abstract The headset comprises a head-encircling band which has a rectangular cross-section, and it includes one or two earpieces which have housings with rectangular slots engaged over and slidable on each band end. In addition, a microphone arm having a microphone at one end and an opposite end with a rotatable ring portion engages through a bore of the ring portion onto the band holding the earpieces or onto a similar band formed on the end of the earpiece housing.
Inventors
- 👤 Karl Cech
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:13
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/08; H04R1/10; H04R1/1058; H04R1/1008; H04R5/00; H04R5/033; H04R5/0335
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
49 words
A headset, comprising a head band engageable over the head at least one earpiece having a slot therethrough through which said band extends, and a microphone arm having one end with a microphone thereon and an opposite end with an engagement portion which is slidably engageable on said band.
Claim 2
Dependent Claim
49 words
A headset, comprising a head band engageable over the head at least one earpiece having a slot therethrough through which said band extends, and a microphone arm having one end with a microphone thereon and an opposite end with an engagement portion which is slidably engageable on said band.
Claim 3
Dependent Claim
46 words
A headset according to claim 1, wherein said microphone arm has an annular end part with a portion having an opening therethrough engaged over said band, said band and said annular end part having projection and recess means for interengaging said microphone arm with said band.
Claim 4
Dependent Claim
33 words
A headset according to claim 2, wherein said portion comprises a ring in said annular end part with a bore therethrough and said engagement means comprises a projection extending into said ring bore.
Claim 5
Dependent Claim
24 words
A headset, according to claim 1, wherein said arm opposite end includes a rotatable bushing having a hole therethrough through which said band extends.
Claim 6
Dependent Claim
28 words
A headset, according to claim 4, wherein said band and its hole are of rectangular construction and including catch means for interengaging said band with said ring portion.
Claim 7
Dependent Claim
15 words
A headset, according to claim 4, wherein said bushing is made of a resilient material.
Claim 8
Dependent Claim
99 words
A headset, according to claim 1, wherein said arm opposite end includes a portion with an opening therethrough, said opening being bevelled inwardly from each end to a central point, said band being flat, means in the opening for pivotally supporting said band therein and holding it in place at the location of the point between the bevelled ends, the surface of said band being such that one side thereof will rest against a bevelled surface adjacent one end of the opening and the opposite side will rest against the bevelled surface on the opposite side of the opening.
Claim 9
Dependent Claim
58 words
A headset according to claim 7, said portion including a ring having a hole therethrough rotatably mounted on the opposite portion of said arm and having an opening through which said band extends and snap connection means defined between the interior of the hole of said ring and said band for pivotally supporting said band in said ring.
Claim 10
Dependent Claim
26 words
A headset, according to claim 8, wherein said snap connection means comprises a recess in said band, said ring having a projection engageable into said recess.
Claim 11
Dependent Claim
16 words
A headset, according to claim 8, wherein said band and said ring have interengageable serrated portions.
Claim 12
Dependent Claim
44 words
A headset, according to claim 1, wherein said earpiece has a cylindrical housing portion with a slot therethrough through which the band extends, an additional securement band carried on said earpiece housing shaped to permit engagement thereof by said engagement portion of said arm.
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) | 1982-02-05 | 1982-08-07 | 1983-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-05 | 1986-08-07 | 1987-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-05 | 1990-08-07 | 1991-02-06 | $7700.00 | Window Closed / Lapsed |