US3826987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Miniature radio receiver
Assignee: Individual
•
Filing: 1973-05-30
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Granted: 1974-07-30
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Expires: 1993-05-30
Abstract
Abstract A miniature radio receiver adapted to be worn over the ear of the user. The electrical components of the radio receiver are housed in a casing comprising two complementary casing portions. An antenna has an externally threaded adjustment element protruding rearwardly of the housing. Each casing portion is provided with a mating internally threaded half-nut which cooperates with the adjustment element external threads to enable manual station selection. The radio receiver is powered by a hearing aid battery mounted in a pivotable holder at the rear of the casing.
Inventors
- 👤 J Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:40
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/08; H04B1/086; H04B1/088
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
209 words
A tuneable miniature radio receiver adapted to be worn on the ear of a user, said radio receiver comprising: a housing including first and second complementarily configured casing portions having an exterior configuration adapted to be accommodated over and partially behind the ear of the user, said casing portions each having a stationary female half-nut adjacent an end thereof, said female half nuts forming a full nut when said casing portions are assembled, said casing portions further having forwardly and downwardly extending complementary hook-like projections forming an outlet channel interior thereof when said casing portions are assembled; a circuit board mounted interior of said housing, said circuitboard carrying a plurality of components comprising a radio receiver; means for coupling electrical energy to said radio components; and a tuneable antenna for enabling manual selection of different radio stations over a band of such stations, said antenna comprising a stationary tuneable element mounted interior of said housing and a rotatable and translatable tuning adjustment element having external screw threads in engagement with said full nut, whereby rotation of said adjustment element in a first direction causes said elemnt to advance into said housing and rotation of said adjustment element in the opposite direction causes said element to retreat from said housing.
Claim 2
Dependent Claim
209 words
A tuneable miniature radio receiver adapted to be worn on the ear of a user, said radio receiver comprising: a housing including first and second complementarily configured casing portions having an exterior configuration adapted to be accommodated over and partially behind the ear of the user, said casing portions each having a stationary female half-nut adjacent an end thereof, said female half nuts forming a full nut when said casing portions are assembled, said casing portions further having forwardly and downwardly extending complementary hook-like projections forming an outlet channel interior thereof when said casing portions are assembled; a circuit board mounted interior of said housing, said circuitboard carrying a plurality of components comprising a radio receiver; means for coupling electrical energy to said radio components; and a tuneable antenna for enabling manual selection of different radio stations over a band of such stations, said antenna comprising a stationary tuneable element mounted interior of said housing and a rotatable and translatable tuning adjustment element having external screw threads in engagement with said full nut, whereby rotation of said adjustment element in a first direction causes said elemnt to advance into said housing and rotation of said adjustment element in the opposite direction causes said element to retreat from said housing.
Claim 3
Dependent Claim
24 words
The apparatus of claim 1 wherein sid stationary female half-nuts are located along the bottom portion of said housing and at the rear thereof.
Claim 4
Dependent Claim
36 words
The apparatus of claim 1 wherein said means for coupling electrical energy includes a battery holder mounted in said housing and adapted to receive a battery, and a pair of contacts secured interior of said housing.
Claim 5
Dependent Claim
83 words
The apparatus of claim 3 wherein said first and second casing portions have complementarily configured rear wall surfaces providing an opening sized to accomodate said battery holder and a pair of facing pivot bearings, and said battery holder is provided with a pair of oppositely extending pivot pins received in said pivot bearings and a protruding opposite end portion engageable with a portion of said rear wall surfaces to provide a positive detent serving to retain said battery holder in a fixed position.
Claim 6
Dependent Claim
34 words
The apparatus of claim 1 further including an earphone mounted exterior of said housing and means for coupling said earphone to said radio receiver, said coupling means being partially located in said outlet channel.
Claim 7
Dependent Claim
79 words
The apparatus of claim 1 wherein said first casing portion has a walled chamber on the interior side thereof, said chamber having an open wall portion serving to communicate said chamber to said outlet channel, a miniature speaker mounted in said chamber and coupled to said radio receiver, an ear plug adapted to be inserted into the auditory canal of a user, and a hollow sleeve coupled to the free end of said hook-like projection and to said plug.
Claim 8
Dependent Claim
63 words
The apparatus of claim 1 wherein said antenna stationary element comprises a hollow bobbin and a coil wound about said bobbin, and wherein said antenna adjustment element comprises a core element partially received within the interior of said bobbin, the outer diameter of the lands of said screw threads of said adjustment element being smaller than the inner diameter of sad hollow bobbin.
Claim 9
Dependent Claim
13 words
The apparatus of claim 7 wherein said adjustment element is constructed of ferrite.
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) | 1977-07-29 | 1978-01-28 | 1978-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-29 | 1982-01-28 | 1982-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-29 | 1986-01-28 | 1986-07-30 | $7700.00 | Window Closed / Lapsed |