公开(公告)号：US20170275829A1

公开(公告)日：2017-09-28

申请号：US15621989

申请日：2017-06-13

Applicant: QUALITY MAT COMPANY

Inventor： Joe PENLAND, JR. ,  Scott CALVERT ,  Chris L. RICHARDSON ,  Mike CARBAUGH

IPC: E01C9/08 ,  E01C11/02 ,  E01C5/00 ,  E01C5/14 ,  E01C5/20 ,  E01C5/22 ,  E01F9/20 ,  B32B15/095 ,  B32B15/18 ,  B32B15/20 ,  B32B21/04 ,  B32B21/08 ,  B32B3/08 ,  B32B3/10 ,  B32B3/14 ,  B32B3/18 ,  B32B3/30 ,  B32B7/00 ,  B32B7/08

CPC classification number: E01C9/086 ,  B32B3/085 ,  B32B3/10 ,  B32B3/14 ,  B32B3/18 ,  B32B3/30 ,  B32B7/005 ,  B32B7/08 ,  B32B15/095 ,  B32B15/18 ,  B32B15/20 ,  B32B21/042 ,  B32B21/045 ,  B32B21/08 ,  B32B21/12 ,  B32B27/08 ,  B32B2264/101 ,  B32B2264/105 ,  B32B2264/107 ,  B32B2272/00 ,  B32B2307/202 ,  B32B2307/21 ,  B32B2307/3065 ,  B32B2307/402 ,  B32B2307/4023 ,  B32B2307/544 ,  B32B2307/546 ,  B32B2307/548 ,  B32B2307/558 ,  B32B2307/56 ,  B32B2307/71 ,  B32B2307/712 ,  B32B2307/732 ,  B32B2307/744 ,  B32B2471/00 ,  B32B2471/04 ,  B32B2519/00 ,  B32B2519/02 ,  B66C23/78 ,  E01C5/006 ,  E01C5/14 ,  E01C5/20 ,  E01C5/22 ,  E01C9/083 ,  E01C2201/10 ,  E01C2201/12

Abstract: A crane mat having first and second side beams or boards; a core structure made of pine or other softwoods, eucalyptus, solid plastic or elastomeric members, or hollow thermoplastic, thermosetting plastic or elastomeric members that optionally include a filler or internal reinforcing structure; external components including an upper and/or lower layers of one or more elongated members to protect the core structure, and a plurality of joining members that attach the outer side members to the core structure. Another crane mat can be made of just the solid plastic or elastomeric members, or hollow thermoplastic, thermosetting plastic or elastomeric members that each include a plurality of spaced lateral apertures passing therethrough; and joining members that include a rod that passes through the aligned lateral apertures to hold the members together in the mat. These crane mats may also include lifting elements of the types described herein.