The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 02, 2001
Filed:
Jun. 04, 1999
Jianjun Zhang, Nashua, NH (US);
Cliff Chuang, Lowell, MA (US);
John Z. W. Zhang, Nashua, NH (US);
Peter J. Pan, Nashua, NH (US);
James S. Li, Lowell, MA (US);
Michael Yuan Lu, Nashua, NH (US);
Ziqiang Chen, Nashua, NH (US);
Chong Tian Wang, Lowell, MA (US);
Yong Bo Shao, Providence, RI (US);
Prospects Corporation, Tyngsboro, MA (US);
Abstract
An obstruction detection apparatus is provided for use in closing a power driven vent, such as a window, that is located in an opening. When the vent includes a first closing edge that moves as the vent is closed and the opening includes a second closing edge that is contacted by the first closing edge when the vent is in a fully closed position, the apparatus includes a detector configured to detect an obstruction at points all along the second closing edge without requiring contact between the obstruction and the vent and to deliver a detection signal when an obstruction is detected. A controller is connected to the detector for receiving the detection signal and delivering a corresponding alarm signal.