Patent US3719250A successfully refreshed from Google Patents.
US3719250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speaker system
Assignee: Pioneer Corp
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Filing: 1972-03-15
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Granted: 1973-03-06
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Expires: 1992-03-15
Abstract
Abstract A speaker system mounting arrangement which allows the middle and high frequency sounds to be directed in a desired direction to give a better sound reproduction without changing the position of the speaker enclosure, by mounting the middle and high frequency sound range speakers in a globe member having an opening on one side thereof and movably mounting the globe member in an opening formed in the enclosure installation or mounting board and is spring biased to allow the globe member to be rotated to position the sound axis of the speaker in any desired direction without moving the speaker enclosure.
Inventors
- 👤 K Maekawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:58
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
97 words
A speaker system comprising: a movable hollow globe member having an opening therein, a speaker for reproducing middle and/or high frequency sounds mounted within said globe member and spanning the opening thereof, an installation board having an opening therethrough, said opening in said installation board being smaller than the outer diameter of said globe member, the opening of said globe member positioned in the opening of said installation board, and spring biasing means for pressing said globe member against said opening in said installation board, whereby said globe member being held freely rotatable against said installation board.
Claim 2
Dependent Claim
97 words
A speaker system comprising: a movable hollow globe member having an opening therein, a speaker for reproducing middle and/or high frequency sounds mounted within said globe member and spanning the opening thereof, an installation board having an opening therethrough, said opening in said installation board being smaller than the outer diameter of said globe member, the opening of said globe member positioned in the opening of said installation board, and spring biasing means for pressing said globe member against said opening in said installation board, whereby said globe member being held freely rotatable against said installation board.
Claim 3
Dependent Claim
97 words
A speaker system comprising: a movable hollow globe member having an opening therein, a speaker for reproducing middle and/or high frequency sounds mounted within said globe member and spanning the opening thereof, an installation board having an opening therethrough, said opening in said installation board being smaller than the outer diameter of said globe member, the opening of said globe member positioned in the opening of said installation board, and spring biasing means for pressing said globe member against said opening in said installation board, whereby said globe member being held freely rotatable against said installation board.
Claim 4
Dependent Claim
97 words
A speaker system comprising: a movable hollow globe member having an opening therein, a speaker for reproducing middle and/or high frequency sounds mounted within said globe member and spanning the opening thereof, an installation board having an opening therethrough, said opening in said installation board being smaller than the outer diameter of said globe member, the opening of said globe member positioned in the opening of said installation board, and spring biasing means for pressing said globe member against said opening in said installation board, whereby said globe member being held freely rotatable against said installation board.
Claim 5
Dependent Claim
72 words
A speaker system as claimed in claim 1, further comprising a press board having an opening therethrough, the size of said opening through said press board being less than the outer diameter of said globe member, said press board positioned against said globe member, said spring biasing means being connected between said installation board and said press board to movably hold said globe member between said installation board and said press board.
Claim 6
Dependent Claim
42 words
A speaker system as claimed in claim 2, wherein said globe member further comprises a protrusion extending through said opening in said press board to limit the degree of movement of said globe member by contact of said protrusion with the edges.
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) | 1976-03-05 | 1976-09-04 | 1977-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-05 | 1980-09-04 | 1981-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-05 | 1984-09-04 | 1985-03-06 | $7700.00 | Window Closed / Lapsed |