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:
Jul. 17, 1979
Filed:
Feb. 21, 1978
Elisha W Erb, Fitchburg, MA (US);
Darrel R Resch, Leominster, MA (US);
Other;
Abstract
A pneumatic microcapillary nebulizer adapted to accept a supply of flowable liquid, such as water, and reduce the liquid to an ultrafine dispersion of particles in a propellant gas, such as air. The microcapillary nebulizer comprises a mixing element having a liquid conduit comprising a microporous capillary element having a multiplicity of liquid passages and exit orifices, a gas conduit having a gas orifice and a filming-surface having an edge comprising said gas orifice and communicating with said liquid exit orifices. All the liquid flowing to said filming surface must pass through said capillary element wherein it is retained in the absence of external forces and whereby it may be rendered substantially free of undesirable solid impurities of microscopic size or larger. The filming surface has an affinity for the liquid, which affinity coupled with the cohesive forces acting on the liquid and the pressure acting on the liquid, cause the liquid to flow out of the capillary element and across the filming surface to form a continuous thin liquid film on the filming surface which is drawn to the edge of the filming surface comprising the gas orifice and is reduced to an ultrafine dispersion of said liquid in the gas flowing through said gas conduit.