IP Library Granted Patent US 9,303,366
Granted Patent B2
US 9,303,366 · App. 14/625,655 · Granted Apr 5, 2016

Access mat

Inventor: William Downing (Penticton, CA)
Assignee: Structurlam Products Ltd.
E01C9/086E01C2201/12
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Quick Facts
Patent No.
US 9,303,366
App. No.
14/625,655
Granted
Apr 5, 2016
Kind
B2
Abstract

An access mat having a rectangular body with a length dimension and a width dimension. The body includes three laminated layers of lumber, with each of the lumber having a longitudinal axis. A first layer of the three layers has a plurality of lumber, with the longitudinal axis of each lumber in a parallel orientation extending across the length dimension. A second layer of the three layers has a plurality of lumber with the longitudinal axis of each lumber in a parallel orientation extending across the width dimension. A third layer of the three layers has a plurality of lumber with the longitudinal axis of each lumber in an angular orientation relative to the longitudinal axis of the plurality of lumber of the second layer. Connectors are provided for connecting the body with other like bodies.

Claims (16)

1. An access mat, comprising:

a rectangular body having a length dimension and a width dimension, the body having three cross-laminated layers of lumber each of the lumber having a longitudinal axis, a first layer of the three cross-laminated layers having a plurality of lumber with the longitudinal axis of each lumber in a parallel orientation extending across the length dimension, a second layer of the three cross-laminated layers having a plurality of lumber with the longitudinal axis of each lumber in a parallel orientation extending across the width dimension, and a third layer of the three cross-laminated layers having a plurality of lumber with the longitudinal axis of each lumber in an angular orientation relative to the longitudinal axis of the plurality of lumber of the second layer; and

connectors for connecting the body with other like bodies.

2. The access mat of claim 1 , wherein the longitudinal axis of each lumber of the plurality of lumber of the second layer is in an orientation that is perpendicular to the orientation of the lumber of the first layer.

3. The access mat of claim 1 , wherein the longitudinal axis of each lumber of the plurality of lumber of the third layer is in an orientation that is perpendicular to the orientation of the lumber of the second layer.

4. The access mat of claim 1 , wherein the plurality of lumber of the first layer, the plurality of lumber of the second layer are closely spaced, and the plurality of lumber of the third layer are spaced farther apart than the plurality of lumber of the first layer and the plurality of lumber of the second layer.

5. The access mat of claim 1 , wherein the body has a first end and a second end, with one of the connectors being projecting tongues at one of the first end or the second end and another of the connectors being recessed tongue receivers at another of the first end or the second end, each of the tongues engaging one of the tongue receivers to connect the body with other like bodies.

6. The access mat of claim 5 , wherein each of the projecting tongues is secured to the body by removable fasteners, such that the projecting tongues are removable to facilitate replacement of damaged tongues.

7. The access mat of claim 5 , wherein each of the projecting tongues and tongue receivers are positioned in the third layer.

8. The access mat of claim 6 , wherein, upon removal of the fasteners securing the projecting tongues, the body has no metal components, thereby facilitating on site environmental disposal through chipping.

9. The access mat of claim 1 , wherein each layer has a peripheral edge, the peripheral edge of the second layer extending outwardly past the peripheral edge of the first layer and the third layer, thereby protecting the first layer and the third layer from damages to the peripheral edge.

10. The access mat of claim 1 , wherein metal elements are positioned at each corner of the body to protect the body from corner damage.

11. The access mat of claim 10 , wherein, upon removal of the metal elements from each corner of the body, the body has no metal components, thereby facilitating on site environmental disposal through chipping.

12. An access mat, comprising:

a rectangular body having a length dimension and a width dimension, the body having three to nine cross-laminated layers of lumber, each of the lumber having a longitudinal axis, a first layer having a plurality of lumber with the longitudinal axis of each lumber in a parallel orientation extending across the length dimension, a second layer having a plurality of lumber with the longitudinal axis of each lumber in a parallel orientation extending across the width dimension, and subsequent layers alternating between the orientation of the first layer and the orientation of the second layer; and

connectors for connecting the body with other like bodies.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 6, 2019
From: STRUCTURLAM PRODUCTS LTD
To: STRUCTURLAM MASS TIMBER CORPORATION
Reel/Frame 050298/0170 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 16, 2018
From: STRUCTURLAM PRODUCTS LIMITED PARTNERSHIP, BY ITS GENERAL PARTNER, SPL WOOD PRODUCTS LTD.; STRUCTURLAM PRODUCTS LTD.
To: SLP OPERATIONS LTD.
Reel/Frame 044955/0054 →
CHANGE OF NAME Recorded Feb 16, 2018
From: SLP OPERATIONS LTD.
To: STRUCTURLAM MASS TIMBER CORPORATION
Reel/Frame 044956/0010 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 19, 2015
From: DOWNING, WILLIAM
To: STRUCTURLAM PRODUCTS LTD.
Reel/Frame 034981/0581 →
Priority Claims (1)
CA 2843105 · Feb 20, 2014 · national
Continuity (2)
Provisional Application 61943523 · Feb 24, 2014
Related Publication 20150233065A1 · Aug 20, 2015