Abstract: A liquid retaining barrier comprises a plurality of vertically stacked members, each member having first and second ends, a length between the first and second ends, first and second sides, and top and bottom faces. An outer shell extends around a perimeter formed by the first and second sides and first and second faces of the member, and defines an inner core space. A conduit comprising a compression reinforcement material is positioned in the inner core space and forms an approximately parabolic curve extending between the first and second ends. A side of the outer shell is tangent to the curve of the conduit at about the mid-point of the length of the member.

Abstract: The invention is directed to an interlocking device for releasably connecting ground a first and a second ground cover mats each having tubular members. The device includes two clamping arms and a securing means. The clamping arms each have a collar member to engage one of the tubular members. The collar members are adjustably connected to each other to move the device from an open installation position into a closed restraining position in which the concave surfaces restrain the tubular members and are opposed to each other. The securing means releasably locks the clamping arms in the closed restraining position.

Abstract: The invention is directed to an interlocking device for releasably connecting ground a first and a second ground cover mats each having tubular members. The device includes two clamping arms and a securing means. The clamping arms each have a collar member to engage one of the tubular members. The collar members are adjustably connected to each other to move the device from an open installation position into a closed restraining position in which the concave surfaces restrain the tubular members and are opposed to each other. The securing means releasably locks the clamping arms in the closed restraining position.

Abstract: A modular rig mat is formed from a core panel have a plurality of edges, and a perimeter frame surrounding the core panel comprising a plurality of frame rails having a transverse profile for engaging corresponding edges of the core panel and a plurality of corner components adapted to connect between adjacent frame rails.

Abstract: The invention is directed to an interlocking device for releasably connecting ground a first and a second ground cover mats each having tubular members. The device includes two clamping arms and a securing means. The clamping arms each have a collar member to engage one of the tubular members. The collar members are adjustably connected to each other to move the device from an open installation position into a closed restraining position in which the concave surfaces restrain the tubular members and are opposed to each other. The securing means releasably locks the clamping arms in the closed restraining position.

Abstract: An elevated platform system includes a base support structure and a plurality of fiber reinforced polymer composite panels. The base support structure includes pilings secured to a ground surface and attachment cradles coupled to the pilings. The attachment cradles are in electrical continuity with the ground surface. The fiber reinforced polymer composite panels include a panel body portion, fibrous material surrounding the panel body portion, a non-conductive matrix forming at least a portion of an outer-most layer of the fiber reinforced polymer composite panel, and an electrically-conductive layer at least partially embedded in the non-conductive matrix. The fiber reinforced polymer composite panels are coupled to the attachment cradles, such that the electrically-conductive layer of the fiber reinforced polymer composite panel is in electrical continuity with the ground surface.

Abstract: An elevated platform system includes a base support structure and a plurality of fiber reinforced polymer composite panels. The base support structure includes pilings secured to a ground surface and attachment cradles coupled to the pilings. The attachment cradles are in electrical continuity with the ground surface. The fiber reinforced polymer composite panels include a panel body portion, fibrous material surrounding the panel body portion, a non-conductive matrix forming at least a portion of an outer-most layer of the fiber reinforced polymer composite panel, and an electrically-conductive layer at least partially embedded in the non-conductive matrix. The fiber reinforced polymer composite panels are coupled to the attachment cradles, such that the electrically-conductive layer of the fiber reinforced polymer composite panel is in electrical continuity with the ground surface.

Abstract: A road mat having a mat body with a first coupling end and a second coupling end. A first locking mechanism is provided at the first coupling end that includes a male coupling member and a female coupling member. A second locking mechanism is provided at the second coupling end that includes a male coupling member and a female coupling member. In one preferred embodiment of the present invention the first locking mechanism is a reciprocating mirror image of the second locking mechanism. The road mat of the present invention may be used in a road mat system that includes at least one prior road mat and at least one successive road mat. The second locking mechanism of the prior road mat is suitable for interlocking with the first locking mechanism of the successive road mat.

Abstract: A road mat having a mat body with a first coupling end and a second coupling end. A first locking mechanism is provided at the first coupling end that includes a male coupling member and a female coupling member. A second locking mechanism is provided at the second coupling end that includes a male coupling member and a female coupling member. In one preferred embodiment of the present invention the first locking mechanism is a reciprocating mirror image of the second locking mechanism. The road mat of the present invention may be used in a road mat system that includes at least one prior road mat and at least one successive road mat. The second locking mechanism of the prior road mat is suitable for interlocking with the first locking mechanism of the successive road mat.

Abstract: A road mat having a mat body with a first coupling end and a second coupling end. A first locking mechanism is provided at the first coupling end that includes a male coupling member and a female coupling member. A second locking mechanism is provided at the second coupling end that includes a male coupling member and a female coupling member. In one preferred embodiment of the present invention the first locking mechanism is a reciprocating mirror image of the second locking mechanism. The road mat of the present invention may be used in a road mat system that includes at least one prior road mat and at least one successive road mat. The second locking mechanism of the prior road mat is suitable for interlocking with the first locking mechanism of the successive road mat.

Abstract: A road mat of the present invention has a mat body having a first coupling end and a second coupling end. A first locking mechanism is provided at the first coupling end that includes a male coupling member and a female coupling member. A second locking mechanism is provided at the second coupling end that includes a male coupling member and a female coupling member. In one preferred embodiment of the present invention the first locking mechanism is a reciprocating mirror image of the second locking mechanism. The road mat of the present invention may be used in a road mat system that includes at least one prior road mat and at least one successive road mat. The second locking mechanism of the prior road mat is suitable for interlocking with the first locking mechanism of the successive road mat.