US3681540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Headset with sheathed insulated-conductors for connection of earphones
Assignee: KMS Industries Inc
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Filing: 1970-11-16
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Granted: 1972-08-01
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Expires: 1990-11-16
Abstract
Abstract In a headset having a headband and two casings which carry earphones and are hingedly connected with the opposite ends of the headband, insulated conductors which connect the earphones and are sheathed in the headband even into the interiors of the casings.
Inventors
- 👤 Ernest F Thomson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:26
CPC Classifications
H; H04; H04R; H04R5/00; H04R5/033; H04R5/0335; H04R1/00; H04R1/10; H04R1/1058; H04R1/1066; H04R1/1008
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
181 words
A headset, having a headband, a pair of casings having earphones therein, and insulated conductors connecting said earphones, with said headband being formed of two complemental parts, of which one part is a longitudinally curved spring of a given length with opposite ends, with opposite half-lengths of said spring being symmetrical, said casings being hingedly connected with said ends, respectively, of said spring, and the latter establishing the resilient flexibility of the headband, and the other part is a flexible conduit having opposite partial lengths extending to the respective ends of the conduit, and another partial length intermediate and continuous with said opposite partial lengths and shorter than the length of said spring, said conduit being with said intermediate partial length mounted on a symmetrical intermediate length of said spring, and said conduit ends extending into the respective casings and being anchored to the latter therewithin, with said opposite partial conduit lengths being of equal longitudinal extents and forming outward loops between said spring and the respective casings, and said insulated conductors extending through said conduit and having sliding freedom therein.
Claim 2
Dependent Claim
181 words
A headset, having a headband, a pair of casings having earphones therein, and insulated conductors connecting said earphones, with said headband being formed of two complemental parts, of which one part is a longitudinally curved spring of a given length with opposite ends, with opposite half-lengths of said spring being symmetrical, said casings being hingedly connected with said ends, respectively, of said spring, and the latter establishing the resilient flexibility of the headband, and the other part is a flexible conduit having opposite partial lengths extending to the respective ends of the conduit, and another partial length intermediate and continuous with said opposite partial lengths and shorter than the length of said spring, said conduit being with said intermediate partial length mounted on a symmetrical intermediate length of said spring, and said conduit ends extending into the respective casings and being anchored to the latter therewithin, with said opposite partial conduit lengths being of equal longitudinal extents and forming outward loops between said spring and the respective casings, and said insulated conductors extending through said conduit and having sliding freedom therein.
Claim 3
Dependent Claim
35 words
A headset as in claim 1, in which said conduit has a sleeve formation coextensive with said intermediate conduit length, with said spring extending through said sleeve formation for mounting said conduit on said spring.
Claim 4
Dependent Claim
32 words
A headset as in claim 2, in which said spring is a spring band, and said conduit and sleeve formation thereon are formed by adjacent widths of a band of flexible material.
Claim 5
Dependent Claim
27 words
A headset as in claim 2, in which said spring consists of complemental lengths lengthwise adjustably connected with each other for extension or contraction of said spring.
Claim 6
Dependent Claim
35 words
A headset as in claim 3, in which said sleeve formation of said flexible band has a longitudinal through-passage of substantially rectangular cross-section for substantially fitted reception of said intermediate length of said spring band.
Claim 7
Dependent Claim
33 words
A headset as in claim 3, in which said conductors number two, and said conduit formation of said flexible band has two longitudinal through-passages for reception of the respective conductors with sliding freedom.
Claim 8
Dependent Claim
15 words
A headset as in claim 3, in which said flexible band is of rubber-like material.
Claim 9
Dependent Claim
16 words
A headset as in claim 3, in which said flexible band is molded of rubber-like material.
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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |