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. 31, 1992
Filed:
Jan. 26, 1990
James M Lapeyre, New Orleans, LA (US);
The Laitram Corporation, New Orleans, LA (US);
Abstract
Screw conveyor apparatus fabricated from integrally molded plastic modules is disclosed. The apparatus includes a multiplicity of modules axially aligned and joined or bonded so as to provide a unitary plastic screw conveyor of a desired length. A plastic axial member extending the length of the screw conveyor and which defines an elongated aperture of a non-circular cross-section is formed by joining or bonding the individual modules. In addition, each of the modules include a flight member which individually helically encircle not more than 360.degree., but when bonded together result in an overall flight member encircling more than 360.degree. and which extends the length of the joined or bonded modules. The plastic screw conveyor is driven by a drive shaft which has a non-circular cross-section and which is inserted through and cooperates with the non-circular aperture extending the length of the joined axial members. A drive or power source is connected to the drive shaft for rotating the apparatus.