Concrete foundation form screw and method of use
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E04G-021/00
F16B-023/00
출원번호
US-0778047
(2010-05-11)
등록번호
US-8429875
(2013-04-30)
발명자
/ 주소
Bartlett, Dameon
출원인 / 주소
Bartlett, Dameon
대리인 / 주소
Kilpatrick Townsend & Stockton LLP
인용정보
피인용 횟수 :
4인용 특허 :
20
초록▼
A protruding-head fastener is disclosed for joining two or more members. A protruding-head fastener includes a head that protrudes when the fastener is installed and shaped to rotationally couple with a drive tool, and a shank fixedly coupled with the protruding head and having a self-tapping thread
A protruding-head fastener is disclosed for joining two or more members. A protruding-head fastener includes a head that protrudes when the fastener is installed and shaped to rotationally couple with a drive tool, and a shank fixedly coupled with the protruding head and having a self-tapping threaded portion and a maximum diameter. The protruding head and the shank define a longitudinal axis through the fastener. The protruding head has a length along the longitudinal axis and a maximum width transverse to the longitudinal axis such that the length divided by the maximum width defines an aspect ratio for the protruding head that is equal to or greater than 1.0. The protruding head further has a minimum width that is greater than the maximum diameter of the shank. In many embodiments, the minimum width of the protruding head exceeds 1.2 times the maximum diameter of the shank.
대표청구항▼
1. A protruding-head fastener for joining two or more members, the fastener comprising: a head that protrudes when the fastener is installed and shaped to rotationally couple with a drive tool, wherein the protruding head comprises a top chamfered portion and two external portions, the two external
1. A protruding-head fastener for joining two or more members, the fastener comprising: a head that protrudes when the fastener is installed and shaped to rotationally couple with a drive tool, wherein the protruding head comprises a top chamfered portion and two external portions, the two external portions being non-circular when viewed along the longitudinal axis, shaped to rotationally couple with a drive tool, and separated by a recessed external portion that is recessed relative to the non-circular external portions, such that, when a tool is coupled with the head at an angle to a longitudinal axis of the fastener, one side of the tool extends into the recessed external portion and an opposite side of the tool fits against the chamfered portion; anda shank fixedly coupled with the protruding head and having a self-tapping threaded portion and a maximum diameter, the protruding head and the shank defining the longitudinal axis through the fastener, the protruding head having a length along the longitudinal axis and a maximum width transverse to the longitudinal axis, the length divided by the maximum width defining an aspect ratio for the protruding head that is equal to or greater than 1.0, the protruding head further having a minimum width that is greater than the maximum diameter of the shank. 2. The fastener of claim 1, wherein the minimum width of the protruding head exceeds 1.2 times the maximum diameter of the shank. 3. The fastener of claim 1, wherein the aspect ratio is equal to or greater than 1.2. 4. The fastener of claim 3, wherein the aspect ratio is equal to or greater than 1.4. 5. The fastener of claim 1, wherein the two external portions that are separated by the recessed external portion have the same non-circular shape when viewed along the longitudinal axis. 6. The fastener of claim 1, wherein at least one external portion has the configuration of a regular polygon when viewed along the longitudinal axis. 7. The fastener of claim 6, wherein the external portion has a hexagonal configuration when viewed along the longitudinal axis. 8. The fastener of claim 1, wherein the the recessed external portion comprises a minimum width that is greater than the maximum diameter of the shank. 9. The fastener of claim 1, wherein the recessed external portion comprises a circular cross-section oriented perpendicular to the longitudinal axis. 10. The fastener of claim 1, wherein the protruding head comprises a recessed-drive feature that is non-circular when viewed along the longitudinal axis and shaped to rotationally couple with a drive tool. 11. The fastener of claim 10, wherein the recessed-drive feature has a cross-recess configuration. 12. The fastener of claim 10, wherein the recessed-drive feature has a square drive configuration. 13. The fastener of claim 10, wherein the recessed-drive feature has a star drive configuration. 14. The fastener of claim 1, wherein the threaded portion comprises a wood-screw thread. 15. The fastener of claim 1, further comprising a head base fixedly coupled with the protruding head and the shank and disposed between the protruding head and the shank, the head base comprising a circular cross-section oriented perpendicular to the longitudinal axis and having a diameter greater than a major diameter of the threaded portion. 16. The fastener of claim 15, wherein the head base comprises an external surface that is axially symmetric to the longitudinal axis. 17. The fastener of claim 16, wherein the axially-symmetric surface comprises an annular surface oriented within 30 degrees from perpendicular to the longitudinal axis and configured to apply a compressive force to a member when installed in the member. 18. The fastener of claim 16, wherein the diameter of the circular cross section is greater than the maximum width of the protruding head. 19. The fastener of claim 17, wherein the annular surface is oriented perpendicular to the longitudinal axis. 20. The fastener of claim 1, wherein the shank comprises a cutting tip. 21. The fastener of claim 1, wherein the shank has an overall length and comprises an unthreaded upper portion having a length that is 30 to 60 percent of the overall length. 22. The fastener of claim 21, wherein the unthreaded upper portion has a length that is 35 to 52.5 percent of the overall length. 23. A structure for forming concrete, the structure comprising: a first member having a surface providing a concrete forming boundary; anda second member coupled with the first member via one or more protruding-head fasteners to constrain the first member, each of the one or more protruding-head fasteners comprising a head that protrudes when the fastener is installed and shaped to rotationally couple with a drive tool, wherein the protruding head comprises a top chamfered portion and two external portions, the two external portions being non-circular when viewed along the longitudinal axis, shaped to rotationally couple with a drive tool, and separated by a recessed external portion that is recessed relative to the non-circular external portions, such that, when a tool is coupled with the head at an angle to a longitudinal axis of the fastener, one side of the tool extends into the recessed external portion and an opposite side of the tool fits against the chamfered portion; anda shank fixedly coupled with the protruding head and having a self-tapping threaded portion and a maximum diameter, the protruding head and the shank defining the longitudinal axis through the fastener, the protruding head having a length along the longitudinal axis and a maximum width transverse to the longitudinal axis, the length divided by the maximum width defining an aspect ratio for the protruding head that is equal to or greater than 1.0, the protruding head further having a minimum width that is greater than the maximum diameter of the shank. 24. A method for forming concrete, the method comprising: positioning a first member having a concrete forming surface;stabilizing the first member with a second member by coupling the second member to the first member via one or more protruding-head threaded fasteners, each of the one or more protruding-head fasteners comprising a protruding head having a length along a longitudinal axis of the fastener that exceeds a maximum width of the protruding head transverse to the longitudinal axis, each protruding head further having a minimum width that is greater than a maximum diameter of a shank of the fastener, the shank fixedly coupled with the protruding head and having a self-tapping threaded portion, each protruding head further having a top chamfered portion and two external portions, the two external portions being non-circular when viewed along the longitudinal axis, shaped to rotationally couple with a drive tool, and separated by a recessed external portion that is recessed relative to the non-circular external portions, such that, when a tool is coupled with the head at an angle to a longitudinal axis of the fastener, one side of the tool extends into the recessed external portion and an opposite side of the tool fits against the chamfered portion;forming concrete against the concrete forming surface; anduncoupling the first and second members by rotating the protruding head of the fastener to remove the fastener from at least one of the first or second members.
Brown Robin L. (Campbellsville KY) Piacenti Frank (Campbellsville KY) Soares Douglas J. (Land O\Lakes FL) Stilwell Frederick H. (Fort Wayne IN), Screw-nut fastener assembly.
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