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:
Feb. 02, 2021
Filed:
Feb. 08, 2019
Applicant:
Stephen B. Maguire, West Chester, PA (US);
Inventor:
Stephen B. Maguire, West Chester, PA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65G 53/58 (2006.01); B65G 53/66 (2006.01); B65G 53/24 (2006.01); G05D 7/06 (2006.01); F16K 17/34 (2006.01);
U.S. Cl.
CPC ...
B65G 53/66 (2013.01); B65G 53/24 (2013.01); F16K 17/34 (2013.01); G05D 7/0605 (2013.01); G05D 7/0635 (2013.01); Y10T 137/0318 (2015.04); Y10T 137/8242 (2015.04);
Abstract
Apparatus for air flow limiting comprise a vertically oriented tube, a sail assembly positioned in the tube and moveable therewithin responsively to air flow through the tube to limit rate of air flow through the tube and halt air flow through the tube upon air flow rate through the tube exceeding a preselected value, and a moveable stop for adjustably changing the length of travel of the sail assembly thereby changing the maximum amount of air flow.