Frame with flexible tensioning strips for stretching a membrane and gel
AssigneeBertin & Cie
InventorsJerome C. D. Coste, Salah Aksas, Frederic Ginot, Daniel Cohen
Life of this patent
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Abstract
A frame for use in making a membrane lined with a gel layer includes two spaced apart bars to which opposite edges of a membrane can be connected and which are connected by two pairs of elastic strips. Cam elements are positioned between the strips of each pair of elastic strips to move the strips apart or allow them to come together, thereby causing the bars to move together for attachment of the membrane, or apart to stretch and tension the membrane after a gel has been cast thereon.
Claims9
A frame for supporting and stretching a membrane, comprising at least two parallel bars and means for attaching the membrane to said bars along two parallel edges of said membrane, and means for causing the relative positioning of the two bars to vary between a position where said membrane is unstretched and a position where said membrane is stretched between said bars, said means for causing the relative positioning of said bars to vary comprising two pairs of closely spaced parallel and identical elastic strips having tow ends, each strip being secured by its respective ends to two corresponding ends of said bars, said strips being flexed apart from each other in order to move the bars closer to each other for attaching the membrane to the bars.
Dependencies are inferred from the claim text.