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. 19, 1992
Filed:
Apr. 13, 1990
Hugh Robinson, Wenham, MA (US);
Design Technology Corporation, Billerica, MA (US);
Abstract
An automatic sandwich preparation system in which each sandwich is prepared under the control of a computer with condiments as ordered. Shredded lettuce is delivered by an automatic volume measuring mechanism or by a weight responsive delivery system. Condiments such as mayonnaise and mustard are delivered by a volumetric pump and a flexible spreader blade that rotates over a screen above the surface of the bun. In an alternative arrangement, radial dispensing orifices rotate over the bun followed by a flexible spreader blade. In another alternative, the condiments are fed individually through flexible tubes to the bun surface while the positions of each of the delivery orifices are controlled by a common mechanism.