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:
Apr. 12, 1977
Filed:
Jun. 24, 1975
Pasquale R Riccio, Salem, NH (US);
Ciba-Geigy Corporation, Ardsley, NY (US);
Abstract
An air pressure-operated dispenser for spraying a single dose of a fluent material of liquid or powder form. The dispenser has a single dose container having a compressed air inlet opening and a closable discharge orifice and means for closing the discharge orifice in a non-dispensing position of the dispenser. An air-compressing piston pump having a compressed air outlet from a compression space thereof is provided on the dispenser at the junction of the inlet opening and the compressed air outlet. The inlet opening of the single dose container is joined to the compressed air outlet of the compression space and valve means is provided on the piston pump for releasing a flow of compressed air after build up of a determined excess pressure.