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:
Aug. 09, 1994
Filed:
Oct. 21, 1992
W Mark Davis, Lewisville, CO (US);
Alden Laboratories, Inc., Boulder, CO (US);
Abstract
An apparatus and method for forming fluid-containing envelopes from two superimposed layers of enclosure material, defining a workpiece, by transporting the workpiece on a support to a plurality of processing stations. One of the processing stations forms at least a portion of the perimeter of each envelope to be formed from the workpiece by appropriately sealing the two layers together in a predefined pattern. At least one inlet coinciding with an unsealed portion of the layers is provided for each such envelope such that an appropriate fluid may be provided thereto when the workpiece is positioned at another processing station. Advantageously, the workpiece is maintained in a certain position on/relative to the support when provided to the envelope filling/forming station and other processing stations which may be incorporated (e.g., secondary sealing station, die cutting station). As a result, the potential for production of defective envelopes which would have to be scrapped is reduced since the alignment of the workpiece relative to such processing stations is maintained within a certain tolerance.