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. 30, 1990
Filed:
Jan. 26, 1988
Damian G Monda, Seattle, WA (US);
Douglas E Peash, Cheboygan, MI (US);
The Boeing Company, Seattle, WA (US);
Abstract
A self-cleaning airflow regulator (100) includes a partially air pervious poppet cylinder (134) disposed between a pair of spaced-apart sidewalls (130, 132) of a restriction chamber (128) to move along the sidewalls in a direction transversely to the length of the poppet cylinder toward and away from an air inlet (136) for directing supply air into the restriction chamber. The restriction chamber includes an air outlet (138) located on the opposite side of the poppet cylinder from a location of the inlet (136). Air entering the restriction chamber (128) through the inlet (136) pushes against the poppet cylinder to force the poppet cylinder to move toward the outlet (138) at the same time causing the poppet cylinder to rotate about its longitudinal axis due to the reactive contact of the poppet cylinder with diagonally disposed fibers (170) mounted on the inside surfaces of the walls (130, 132) of the restriction chamber. The rotation of the poppet cylinder (134) about its longitudinal axis place a new section of the poppet cylinder in alignment with the outlet (138) so that dust and other particlate matter collected on the outer surface of the poppet cylinder is removed therefrom by the air which leaves the poppet cylinder through the outlet (138). Air entering the restriction chamber is reduced in flow rate and pressure first during passage into the regulator inlet, then during passage into the poppet cylinder and then again during passage out from the poppet cylinder for exit from the restriction chamber through outlet (138).