Back to results
US 4,278,145 AGranted
Concert shell
OwnerRobert A. Eade, Peter V. C. Quaintanceinventors
Life of this patent
Estimating the term…
Abstract
A concert shell for use either indoors or outdoors wherever music is performed so as to enhance the acoustical quality of the music, and which shell is readily portable, light weight, and which can be readily assembled and disassembled. It comprises a plurality of similarly constructed sections wherein each section is formed of structural members having connected thereto an acoustical shell surface which is formed with a compound convex-concave surface arranged to reverberate and mix the sounds to provide for optimum acoustics.
Claims7
A concert shell comprising
- a plurality of shell sections,
- each of said shell sections being similarly constructed and each shell section including a lower portion and an upper portion, means for readily detachably connecting the upper portion from said lower portion,
- a frame having opposed side and end members defining each of said portions,
- said opposed side and end members having a circumscribing lip to define a groove circumscribing said frame,
- an accoustical panel mounted on said frame whereby the edges of said panel are received in said groove,
- means for fixedly connecting said panel to said frame,
- and said panel connected to said upper portion having at least one outwardly projecting blister having a curvilinear contour extending longitudinally and transversely of said blister;
- and said panel connected to said lower portion having a plurality of spaced apart outwardly projecting blisters,
- each of said blister having a compound curvilinear contour along the respective x and y axis thereof, and said spaced blisters of said lower section being spaced apart to define a separation therebetween located at the height of a seated musician.
6 more elements
A concert shell section comprising
- a pair of spaced apart side members and opposed interconnecting end members defining a rectangular shaped frame,
- each of said members having a channel shaped cross-section,
- said channel shaped cross-section being defined by a pair of opposed web portions and an interconnecting web portion,
- a flange lip connected to each of said members, said lip being spaced from the interconnecting web portion to define a groove circumscribing said frame,
- an accoustical panel,
- said accoustical panel having a peripheral marginal portion adapted to be received in said circumscribing groove, said accoustical panel includes a pair of integrally formed blisters, each projecting outwardly from the plane of said panel,
- each said blisters being defined by a relatively sharply angled circumscribing end wall which are generally inclined to define a generally frustro pyramid, the sides of which are generally curvilinear,
- and a front face connected to said angled end walls defining a generally shallow convex surface that is curvilinear so as to define a compound curve along the x and y axis of said front face,
- said blisters having their contiguous end walls spaced apart to define a separation located at the height of a seated musician,
- means for securing said marginal portion of said panel to the adjacent interconnecting web portion of said frame members,
- a foot portion extending beyond the lower end of said side members,
- a pair of horizontally disposed base members, said base members each comprising an elongated channel shaped member having an opening intermediate the ends thereof adapted for receiving said foot portions of said frame,
- a diagonal bracket interconnected between said side members and its corresponding base members.
10 more elements
Dependencies are inferred from the claim text.