US Patent 8393054 Door operator
Patent 8393054 was granted and assigned to Dorma on March, 2013 by the United States Patent and Trademark Office.
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Patent abstract
A door operator includes a first component having a right-hand thread, a second component having a left-hand thread, and a plug-in or rotatable coupling having two complementary threads. The first and second compartments are interconnected to each other by the coupling when the right-hand thread of the first compartment and the left-hand thread of the second compartment engage the respective complementary threads of the coupling.
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Patent Inventor Names
Volker Bienek0
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US Patent 08393054 Door operator US Patent 8393054 Door operator
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Patent Number
08393054
Patent Number
8393054
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US Patent 08393054 Door operator
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Is a
Current assignee
Patent jurisdiction
Patent number
08393054
Date of patent
March 12, 2013
Patent application number
11793068
Date Filed
November 11, 2005
Patent primary examiner
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