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US 4,061,877 AGranted
Speaker system
AssigneeShaymar, Inc.
InventorWilliam W. Phillips
Life of this patent
Estimating the term…
Abstract
A stereo speaker system removably mountable on the back of a seat includes two speaker assembly enclosures pivotally mounted on a spacer bar to maintain the speakers at a desired separation and orientation and a strap for securing the enclosures and spacer bar to the back of the seat. Each enclosure includes a chamber substantially occupied by a speaker assembly and a duct portion for directing the sound.
Claims10
A stereo speaker system structure for mounting on the back of a seat which may include a headrest near its top, comprising:
- two loud speaker assemblies, each including at least one loud speaker;
- an enclosure for each of said loud speaker assemblies, comprising a shell of rigid material substantially surrounding said loud speaker assembly on all sides to form a chamber substantially occupied by said loud speaker assembly and narrowing on one side to form a duct for directing sound produced by said loud speaker assembly;
- at least one rigid spacer comprising an elongated member having means for attaching each enclosure to it at a preselected location along its length to form a system structure comprising two of said enclosures held in a spaced-apart relationship by said at least one rigid spacer;
- and,
- means for attaching a strap to the system structure for mounting it on the back of a seat.
2 more elements
Dependencies are inferred from the claim text.