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:
Mar. 03, 1998
Filed:
Mar. 20, 1996
Barry Reginald Marshall, Oxford, GB;
Ambic Equipment Limited, Oxon, GB;
Abstract
A dip cup comprises a compressible container for containing a liquid including a foaming agent, a cup mounted on the container, a foaming device for drawing air into liquid in the container as the container expands from a compressed state to cause the liquid to foam, and passage means between the container and the cup and through which foam can pass from the container to the cup as the container is compressed. The foaming device is arranged to draw air into liquid in the container from the exterior of the dip cup and includes a valve for preventing the contents of the container from being expelled via the foaming device when the container is compressed. A one way valve may be provided in the passage means to prevent the return of foam from the cup to the container.