Patent ID: 7155779
Filing Date: 2007-01-02
Classification: E05D,E05F,E05Y,Y10T

Abstract:
1. An automatic hinge comprising: a fixed left hand section, said left hand section having an arcuate interior edge extending from an outer point to an inner point; a fixed right hand section, said right hand section having an arcuate interior edge extending from an outer point to an inner point; a rotatable central section in substantial linear alignment with said left hand and right hand sections, said central section having an arcuate left hand edge extending from an outer point to an inner point, said left hand edge of said central section configured to mate with said interior edge of said left hand section, said central section further having an arcuate right hand edge extending from an inner point to an outer point, said right hand edge of said central section configured to mate with said interior edge of said right hand section; a drive configured to move said central section between said right hand section and said left hand section whereby said central section will rotate as said arcuate left hand edge of said central section engages said arcuate interior edge of said left hand section and whereby said central section will also rotate as said arcuate right hand edge of said central section engages said interior edge of said right hand section and; a sleeve positioned over and attached to said central section, positioned over said left hand section, and positioned over said right hand section, said sleeve configured to move linearly and rotate with said central section, said sleeve further configured to hold said left hand section, said right hand section, and said central section in linear alignment.