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:
May. 02, 1995
Filed:
Dec. 09, 1993
Bodo Hildebrandt, Riedstadt, DE;
Wella Aktiengesellschaft, Darmstadt, DE;
Abstract
The dispensing apparatus for a liquid spray or a foam includes a reservoir chamber; a manually operable air pump device for pressurizing the reservoir chamber with pressurized air, the manually operable air pump device including a nondetachable operating handle in a bottom region of the apparatus, a piston pump responsive to the operating handle for pressurizing air and a pressure equalizing valve communicating with an outer atmosphere; a metering valve connected with the reservoir chamber through which the foam or liquid spray is dispensed and a one-way valve connecting the manually operable air pump device with the reservoir chamber to permit flow from the manually operable air pump device to the reservoir chamber and to prevent flow from the reservoir chamber to the manually operable air pump device; and a motor driven pressurized air filling device for feeding pressurized air to the reservoir chamber for professional applications requiring repeated pressurization.