US4404434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible stereophone
Assignee: Koss Corp
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Filing: 1981-08-10
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Granted: 1983-09-13
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Expires: 2001-08-10
Abstract
Abstract A stereophone includes a headband which supports cup assemblies at each of its ends. The cup assemblies can be pivoted to a transport position in which they are enclosed within the headband. The ends of the headband may be fastened together to retain the cup assemblies in this position.
Inventors
- 👤 Thomas E. Pelt
- 👤 Joseph C. Besasie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:08
CPC Classifications
H; H04; H04R; H04R5/00; H04R5/033; H04R5/0335; H04R1/00; H04R1/10; H04R1/1008; H04R1/1058
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
183 words
A stereophone, the combination comprising: a flexible headband formed in an arc to fit over the head of a user and having a pair of ends; a first cup assembly pivotally attached to one end of said headband for pivoted motion between an operating position in which it extends downward from the headband over the ear of a user and a transport position in which it is folded upward and within the arc formed by the headband; a second cup assembly pivotally attached to the other end of said headband for pivotal motion between an operating position in which it extends downward from the headband over the other ear of a user and a transport position in which it is folded upward and within the arc formed by the headband; and fastening means for holding the ends of the headband together when both cup assemblies are pivoted to their transport positions to thereby substantially enclose them within the headband, said fastening means including a hook formed adjacent one end of the headband and an eye formed near the other end of the headband.
Claim 2
Dependent Claim
183 words
A stereophone, the combination comprising: a flexible headband formed in an arc to fit over the head of a user and having a pair of ends; a first cup assembly pivotally attached to one end of said headband for pivoted motion between an operating position in which it extends downward from the headband over the ear of a user and a transport position in which it is folded upward and within the arc formed by the headband; a second cup assembly pivotally attached to the other end of said headband for pivotal motion between an operating position in which it extends downward from the headband over the other ear of a user and a transport position in which it is folded upward and within the arc formed by the headband; and fastening means for holding the ends of the headband together when both cup assemblies are pivoted to their transport positions to thereby substantially enclose them within the headband, said fastening means including a hook formed adjacent one end of the headband and an eye formed near the other end of the headband.
Claim 3
Dependent Claim
254 words
A stereophone, the combination comprising: a flexible headband formed in an arc to fit over the head of a user and having a pair of ends; a first cup assembly pivotally attached to one end of said headband for pivoted motion between an operating position in which it extends downward from the headband over the ear of a user and a transport position in which it is folded upward and within the arc formed by the headband; a second cup assembly pivotally attached to the other end of said headband for pivotal motion between an operating position in which it extends downward from the headband over the other ear of a user and a transport position in which it is folded upward and within the arc formed by the headband; fastening means for holding the ends of the headband together when both cup assemblies are pivoted to their transport positions to thereby substantially enclose them within the headband; and locking means are formed on each end of the headband to releasably retain each headphone cup in its operating position, and in which each locking means includes a contoured loop formed on the end of the headband and a pin mounted on the cup assembly, and the cup assembly is free to pivot about the end of the headband when the pin is positioned within a lower detent portion of the loop and the cup assembly is locked in its operating position when the pin is snapped into an upper detent portion of the loop.
Claim 4
Dependent Claim
254 words
A stereophone, the combination comprising: a flexible headband formed in an arc to fit over the head of a user and having a pair of ends; a first cup assembly pivotally attached to one end of said headband for pivoted motion between an operating position in which it extends downward from the headband over the ear of a user and a transport position in which it is folded upward and within the arc formed by the headband; a second cup assembly pivotally attached to the other end of said headband for pivotal motion between an operating position in which it extends downward from the headband over the other ear of a user and a transport position in which it is folded upward and within the arc formed by the headband; fastening means for holding the ends of the headband together when both cup assemblies are pivoted to their transport positions to thereby substantially enclose them within the headband; and locking means are formed on each end of the headband to releasably retain each headphone cup in its operating position, and in which each locking means includes a contoured loop formed on the end of the headband and a pin mounted on the cup assembly, and the cup assembly is free to pivot about the end of the headband when the pin is positioned within a lower detent portion of the loop and the cup assembly is locked in its operating position when the pin is snapped into an upper detent portion of the loop.
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) | 1986-09-12 | 1987-03-14 | 1987-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-12 | 1991-03-14 | 1991-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-12 | 1995-03-14 | 1995-09-13 | $7700.00 | Window Closed / Lapsed |