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:
Oct. 12, 2021
Filed:
Jul. 26, 2019
Midland Manufacturing Limited, Rosenort, CA;
Leroy J. Friesen, Rosenort, CA;
MIDLAND MANUFACTURING LIMITED, Rosenort, CA;
Abstract
A trailer for particulates, especially for fracturing sand, but also for other materials, has a clam shell gate, which sealingly engages when closed preventing egress of particulates. The gate is attached to a hopper which has an exterior control mechanism thus avoiding wear and tear from particulates. The hopper is an inverted pyramid with downward and inward inclined walls below the trailer. The trailer itself has a cargo compartment with forward and rear sloping walls and upright side walls. The sloping walls of the trailer and the inclined walls of the hopper are inclined at about 38° to the horizontal, which is greater than the angle of repose of fracturing sand to allow complete or near complete discharge of fracturing sand.