Spreader frame
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United States of America Patent
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Oct 17, 2017
Issued Date -
N/A
app pub date -
Jul 22, 2016
filing date -
Jul 22, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A spreader frame, comprising a set of outer bars and a corresponding set of inner bars, each outer bar having a series of apertures and each inner bar having a spring-biased pin shaped and oriented to fit into any aperture of the series of apertures, each inner bar slidably engaging each corresponding outer bar to form an expandable beam having a first end and a second end, and each beam being connected at its first end and second end to a further beam to form a frame, wherein for each beam, each aperture of the series of apertures other than a selected aperture is filled with a corresponding outer bar pin, and the inner bar is slidable within the outer bar to bring the spring-biased pin in position to insert into the selected aperture to fix the size of the beam.
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