Patent ID: 9546455
Date: 2017-01-17
CPC Classifications: E01C

Claim:
1. A rig mat comprising: a panel including a frame, the frame having at least two longitudinal frame members and at least two lateral frame members defining a deck insert opening therebetween; each longitudinal frame member having a C-shaped channel facing the deck insert opening and extending along the length of the longitudinal frame member; at least one of said C-shaped channels having a longitudinally extending flange with a flange opening providing access into the C-shaped channel; at least one of said longitudinal frame members having a flange panel mounting surface extending along said flange opening; a flange panel removably fastened to said flange panel mounting surface with said flange panel overlapping said flange mounting surface by one or more threaded fasteners extending through cooperating holes formed through said flange panel and said flange mounting surface; and wherein said flange opening is closed when said flange panel is mounted along said flange panel mounting surface.