[미국특허]
Industrial mats having side protection
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E01C-009/08
B32B-003/08
B32B-003/14
B32B-003/18
E01C-005/00
E01C-005/22
B32B-003/26
B32B-007/00
B32B-007/08
B32B-015/095
B32B-015/18
B32B-021/04
B32B-021/12
B32B-025/04
B32B-027/06
B32B-027/08
B32B-003/06
출원번호
US-0789412
(2017-10-20)
등록번호
US-10017903
(2018-07-10)
발명자
/ 주소
Penland, Jr., Joe
Penland, Rustin
Calvert, Scott
O'Brien, Thomas
출원인 / 주소
Quality Mat Company
대리인 / 주소
Winston & Strawn LLP
인용정보
피인용 횟수 :
0인용 특허 :
66
초록▼
An industrial mat that has a support core configured and arranged to support other components of the mat; and upper and lower layers that provide upper and lower surfaces of the mat and that protect the support core. The support core includes a frame of longitudinal side members, end members and cro
An industrial mat that has a support core configured and arranged to support other components of the mat; and upper and lower layers that provide upper and lower surfaces of the mat and that protect the support core. The support core includes a frame of longitudinal side members, end members and cross members each of which is made of steel or a thermosetting plastic material. The frame can include wood, plastic or elastomeric internal members or materials to fill internal open areas of the frame, with the upper and lower layers and the sides and ends of the frame retaining the internal members or materials therein. The mat preferably includes lifting elements of D-shaped rings, O-shaped rings, chains, or cables attached to the upper or lower layer or the support core to provide certified overhead lifting of the mat for installation and reclamation thereof.
대표청구항▼
1. A crane mat comprising a plurality of longitudinal beams that are positioned in a side by side arrangement; each of the beams having a plurality of spaced lateral apertures passing therethrough, with the lateral apertures being in alignment to form bores through the mat; a plurality of lateral ro
1. A crane mat comprising a plurality of longitudinal beams that are positioned in a side by side arrangement; each of the beams having a plurality of spaced lateral apertures passing therethrough, with the lateral apertures being in alignment to form bores through the mat; a plurality of lateral rods with each rod passing through each beam through the aligned lateral apertures to hold the beams together in the side by side arrangement; an opening provided in one of the beams or in and between adjacent beams and having a depth sufficient to expose a lateral rod that passes through the opening; a rectangular metal collar having side plates that extend into the opening but not to the depth where the lateral rod passes through the opening, and an upper plate that extends from the side plates and onto the respective upper and/or lower surfaces of the beam or beams surrounding the opening; and fastening means that removably attach the metal collar to the elongated members; wherein the opening is configured to receive, hold and maintain a lifting element therein in a first retracted position below the surface of the mat when not in use and to allow retrieval and removal of the lifting element from the opening to a second position that exposes grasping means when the mat is to be lifted or manipulated; and wherein the upper plate of the rectangular metal collar protects the surface of the beam or beams surrounding the opening. 2. The crane mat of claim 1, wherein the lifting element has a body with a first end thereof connected to the lateral rod that passes through the opening, and a second end having the grasping means for allowing a hook or connecting element of equipment to engage the grasping means for lifting and manipulation of the mat. 3. The crane mat of claim 2, wherein the first end of the lifting element includes a first aperture in the body which is configured and dimensioned to receive the lateral rod to allow the lateral rod to pass through the first aperture to attach the lifting element to the lateral rod, and the second end of the lifting element includes a second aperture in the body which is configured and dimensioned to receive the hook or connecting element when removed from the opening and placed in the second position. 4. The crane mat of claim 2, wherein the body of the lifting element is elongated and the first and second ends are arcuate to allow rotational movement of the second end about the lateral rod when the second end is to be rotated from the retracted position where the lifting element is oriented parallel to the beams to the second position where the lifting element is oriented perpendicular to the beams, wherein the opening is sufficiently large to provide space around or access to the lifting element to allow a user to grab the second end to rotate it about the lateral rod and out of the opening, wherein, when in the retracted position a side portion of the lifting element prevents a worker from stepping into the opening. 5. The crane mat of claim 1, which includes at least two openings each configured for receiving, holding and maintaining a lifting element therein, wherein one lifting element is located in an opening associated with a lateral rod nearest one end of the mat and another lifting element is located in an opening associated with a lateral rod nearest the opposite end of the mat, wherein the openings are spaced about 1 to 3 feet from the front or rear ends of the mat. 6. The crane mat of claim 1, wherein the beams have a width by height dimensions of between about 6 by 6 inches to about 24 by 24 inches and a length of between about 4 and about 60 feet, and are made of wood, engineered wood, or a thermosetting plastic material and optionally comprising metal plates located between one or more pairs of beams with the metal plates being essentially the same height and length as the beams. 7. The crane mat of claim 1, wherein each lifting element comprises a chain, a cable, a connector, an eyelet, a hook, a D-shaped member, a U-shaped member, or a ring, wherein each opening associated with a lifting element is configured and dimensioned to hold and maintain the lifting element therein in a first retracted position when not in use and to allow retrieval and removal of the lifting element portion from the opening to a second position that exposes the lifting element portion when the mat is to be lifted or manipulated. 8. The crane mat of claim 1, wherein the fastening means comprises nails or screws for attaching the metal collar to the opening in the beam(s). 9. The crane mat of claim 1, wherein the lateral rod that passes through the opening includes a flange or ring thereon to assist in positioning the lifting element in the opening, and wherein the lifting element includes a connectable link that releasably connects the lifting element to the lateral rod. 10. The crane mat of claim 9, wherein the lifting element comprises a chain, a cable, a connector, an eyelet, a hook, a D-shaped member, a U-shaped member, or a ring. 11. The crane mat of claim 9, wherein the lifting element comprises a chain, a cable, a connector, an eyelet, a hook, a D-shaped member, a U-shaped member, or a ring. 12. A crane mat comprising a plurality of longitudinal beams that are positioned in a side by side arrangement; each of the beams having a plurality of spaced lateral apertures passing therethrough, with the lateral apertures being in alignment to form bores through the mat; a plurality of lateral rods with each rod passing through each beam through the aligned lateral apertures to hold the beams together in the side by side arrangement; an opening provided in one of the beams or in and between adjacent beams and having a depth sufficient to expose a lateral rod that passes through the opening; an upper layer provided above the beams for forming at least part of an upper surface of the mat, a lower layer provided below the beams for providing forming at least part of a lower surface of the mat, or both upper and lower layers, with the upper and/or lower layers configured to include a cut out portion above or below the opening; and a rectangular metal collar having side plates that extend into the opening but not to the depth where the lateral rod passes through the opening, and an upper plate that extends from the side plates and onto the respective upper and/or lower surfaces of the opening as well as adjacent surfaces of the upper and/or lower layers; fastening means that removably attach the metal collar to the elongated members; wherein the opening is configured to receive, hold and maintain a lifting element therein in a first retracted position below the surface of the mat when not in use and to allow retrieval and removal of the lifting element from the opening to a second position that exposes grasping means when the mat is to be lifted or manipulated; wherein the upper and/or lower layers are independently made of a plate, sheet or plurality of elongated members; and wherein the collar protects the elongated member contacting the lifting element and adds stability when the mat is being hoisted or moved; andwherein the upper plate of the rectangular metal collar protects the surface of the beam or beams surrounding the opening. 13. The crane mat of claim 12, wherein the lifting element has a body with a first end thereof connected to the lateral rod that passes through the opening, and a second end having the grasping means for allowing a hook or connecting element of equipment to engage the grasping means for lifting and manipulation of the mat. 14. The crane mat of claim 12, wherein the first end of the lifting element includes a first aperture in the body which is configured and dimensioned to receive the lateral rod to allow the lateral rod to pass through the first aperture to attach the lifting element to the lateral rod, and the second end of the lifting element includes a second aperture in the body which is configured and dimensioned to receive the hook or connecting element when removed from the opening and placed in the second position. 15. The crane mat of claim 12, wherein the body of the lifting element is elongated and the first and second ends are arcuate to allow rotational movement of the second end about the lateral rod when the second end is to be rotated from the retracted position where the lifting element is oriented parallel to the beams to the second position where the lifting element is oriented perpendicular to the beams, wherein the opening is sufficiently large to provide space around or access to the lifting element to allow a user to grab the second end to rotate it about the lateral rod and out of the opening, wherein, when in the retracted position a side portion of the lifting element prevents a worker from stepping into the opening. 16. The crane mat of claim 12, which includes at least two openings each configured for receiving, holding and maintaining a lifting element therein, wherein one lifting element is located in an opening associated with a lateral rod nearest one end of the mat and another lifting element is located in an opening associated with a lateral rod nearest the opposite end of the mat, wherein the openings are spaced about 1 to 3 feet from the front or rear ends of the mat. 17. The crane mat of claim 12, wherein the beams have a width by height dimensions of between about 6 by 6 inches to about 24 by 24 inches and a length of between about 4 and about 60 feet, and are made of wood, engineered wood, or a thermosetting plastic material and optionally comprising metal plates located between one or more pairs of beams with the metal plates being essentially the same height and length as the beams. 18. The crane mat of claim 12, wherein each lifting element comprises a chain, a cable, a connector, an eyelet, a hook, a D-shaped member, a U-shaped member, or a ring, wherein each opening associated with a lifting element is configured and dimensioned to hold and maintain the lifting element therein in a first retracted position when not in use and to allow retrieval and removal of the lifting element portion from the opening to a second position that exposes the lifting element portion when the mat is to be lifted or manipulated. 19. The crane mat of claim 12, wherein the fastening means comprises nails or screws for attaching the metal collar to the opening in the elongated member(s). 20. The crane mat of claim 12, wherein the lateral rod that passes through the opening includes a flange or ring thereon to assist in positioning the lifting element in the opening, and wherein the lifting element includes a connectable link that releasably connects the lifting element to the lateral rod.
Beckerman Norton S. (Arlington VA) Endres Tom (Seattle WA) Bowthorpe Peter (Jacksonville FL), High strength, light weight structural composite and method of preparing same.
Phillips Mark L. (108 Tanglewood Dr. Lafayette LA 70503) Thibodeaux Raymond R. (125 Pembroke La. Lafayette LA 70508), Method and apparatus for temporary matting for use at construction sites.
Gardner Guy P. (14 Nansen Street ; Northgate Queensland 4013 AUX) Eaton Robert D. (16 Emerald Street ; Clontarf Queensland ; 4019 AUX), Reinforced laminated timber.
Phillips, Mark L., Temporary roadway for moving heavy equipment on an incline and steep grades including synthetic inter-connectable movable and removable structural mats.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.