Is a
Patent attributes
Patent Applicant
0
Current Assignee
0
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tom W. Duffy0
Date of Patent
June 14, 2005
0Patent Application Number
103761890
Date Filed
February 27, 2003
0Patent Citations Received
Patent Primary Examiner
Patent abstract
The present invention relates to a hold-open apparatus for controlling the position of a door, preferably a screen door or storm door. The apparatus is used in conjunction with a piston assembly and can maintain a door in a predetermined open position, such as about 45° to about 100° in relation to a closed position. In a preferred embodiment, the apparatus can automatically lock and/or unlock when the door reaches predetermined positions. The apparatus advantageously can be retrofitted to existing door assemblies.
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