IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0709102
(2010-02-19)
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등록번호 |
US-8621806
(2014-01-07)
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발명자
/ 주소 |
- Studebaker, Glenn Wayne
- Samuelson, David Lee
- Dayton, Lionel Edward
- Lukes, Richard
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
10 인용 특허 :
44 |
초록
▼
The composite joist floor system includes joists supporting metal decking and a stand-off fasteners are spaced along the length of the joist Each fastener has an upper portion with a through hardness between HRB 70 and HRC 40 and a lower portion having a threaded portion with a through hardness of b
The composite joist floor system includes joists supporting metal decking and a stand-off fasteners are spaced along the length of the joist Each fastener has an upper portion with a through hardness between HRB 70 and HRC 40 and a lower portion having a threaded portion with a through hardness of between HRB 70 and HRC 40 and a thread-forming portion adjacent the threaded portion with at least a HRC 50 hardness and failure torque to thread-forming torque of at least 3.0 and a drive torque at least 20% less than a thread-forming torque, and a fluted lead portion adjacent the thread-forming portion with a nominal diameter between 70 and 95% of major diameter of the threaded portion adapted to form a fastener opening. These stand-off fasteners extend into and are encapsulated by a cementitious slab supported by the metal decking to form a composite floor system.
대표청구항
▼
1. A composite joist floor system comprising: a first support structure;a second support structure;a plurality of joists spaced apart and extending from the first support structure to the second support structure;decking supported by the plurality of joists;a plurality of stand-off fasteners adapted
1. A composite joist floor system comprising: a first support structure;a second support structure;a plurality of joists spaced apart and extending from the first support structure to the second support structure;decking supported by the plurality of joists;a plurality of stand-off fasteners adapted to be fastened through the decking to the plurality of joists, each stand-off fastener of carbon steel comprising a lower portion and an upper portion where the lower portion has a clamping part capable of clamping the decking to the joist, the lower portion havinga threaded portion adjacent the clamping part with a through hardness of between HRB 70 and HRC 40 and having the lower portion of the fastener with a thread-forming portion adjacent the threaded portion of at least HRC 50 hardness adapted to enable the fastener to form threads in an upper chord of a joist, anda fluted lead portion adjacent the thread-forming portion of at least HRC 50 hardness with a nominal diameter between 80 and 98% of major diameter of the threaded portion adapted to form a fastener opening in an upper chord of a joist,the thread-forming portion having a series of lobes with recesses between said lobes structured by a failure torque to thread-forming torque of at least 3.0 and a drive torque at least 20% less than a thread-forming torque,and the upper portion of the stand-off fasteners have a through hardness of between HRB 70 and HRC 40 and when installed, at least a portion of the upper portion of each stand-off fastener extends significantly above the decking; anda cementitious slab supported by the decking and encapsulating the upper portion of each stand-off fastener extending above the decking. 2. The composite joist floor system claimed in claim 1, the fastener has a drive torque no more than 50% of a thread-forming torque. 3. The composite joist floor system claimed in claim 1, where the lower portion of the fastener has a failure torque to thread-forming torque of at least 4.0. 4. The composite joist floor system claimed in claim 1, where the clamping portion of the lower portion of each stand-off fastener comprises a fastener drive head adapted to be used in installing the stand-off fastener and the upper portion of the stand-off fastener is sized to permit the stand-off fastener to be installed into the decking. 5. The composite joist floor system claimed in claim 4, where a SEMS anchor is positioned on the upper portion of the stand-off fastener sized to permit the stand-off fastener to be installed into the decking and a joist and the SEMS anchor engages in the cementitious slab on installing of the fastener and placement of the cementitious slab. 6. The composite joist floor system claimed in claim 5, where the SEMS anchor is mounted adjacent a threaded portion on the upper portion of the stand-off fastener. 7. The composite joist floor system claimed in claim 1, where a fastener drive head is positioned on the upper portion of each stand-off fastener adapted to be used in installing the stand-off fastener and to engage in the cementitious slab on installing of the fastener and the cementitious slab. 8. The composite joist floor system claimed in claim 7, where a SEMS anchor is part of the clamping portion of the lower portion of each stand-off fastener and adapted to engage decking or the cementitious slab on installing of the fastener in the cementitious slab. 9. The composite joist floor system claimed in claim 1, where the threaded portion of each stand-off fastener is of at least HRC 33 through hardness and up to five threads adjacent the thread-forming portion are hardened to at least HRC 50 hardness. 10. The composite joist floor system claimed in claim 1, where the fluted lead portion has at least HRC 54 hardness. 11. The composite joist floor system claimed in claim 1, where the thread-forming portion has a shape selected from the group consisting of bilobular, trilobular, quadlobular and pentalobular. 12. The composite joist floor system claimed in claim 1, where the thread-forming portion has a quadlobular shape. 13. The composite joist floor system claimed in claim 1, where the fluted lead portion of each stand-off fastener is adapted to form a fastener opening with a diameter between 80 and 95% of major diameter of the threaded portion. 14. The composite joist floor system claimed in claim 1, where the fluted lead portion of each stand-off fastener has at least HRC 50 induction hardness. 15. The composite joist floor system claimed in claim 1, where the threaded portion of each stand-off fastener has seating torque of at least 80 inch-pounds. 16. The composite joist floor system claimed in claim 1, where the threaded portion of each stand-off fastener has seating torque between 80 and 450 inch-pounds. 17. The composite joist floor system claimed in claim 1, where the threaded portion of each stand-off fastener is back-tapered by between 0.0005 and 0.003 inch per inch of length. 18. The composite joist floor system claimed in claim 1, where the threaded portion of each stand-off fastener has less than 60° thread angle and back-tapered threads. 19. The composite joist floor system claimed in claim 1, where the threaded portion of each stand-off fastener has between 45 and 50° thread angle and back-tapered threads. 20. The composite joist floor system claimed in claim 1, where the threaded portion of each stand-off fastener meets a specification selected from the group consisting of ASTM A307, ASTM A325, ASTM A354, and ASTM A490 specification. 21. The composite joist floor system claimed in claim 1, where the threaded portion of each stand-off fastener meets a specification selected from the group consisting of SAE J429 Grade 2, SAE J429 Grade 5, and SAE J429 iGrade 8. 22. The composite joist floor system claimed in claim 1, where the thread-forming portion of each stand-off fastener has thread-forming torque of no more than 100 inch-pounds. 23. The composite joist floor system claimed in claim 1, where the thread-forming portion of each stand-off fastener is between 3 and 7 thread pitches in length. 24. The composite floor system claimed in claim 1, where the fluted lead portion of each stand-off fastener has a milled point. 25. The composite floor system claimed in claim 1, where the decking comprises corrugated steel decking defining altering peaks and valleys, where the stand-off fasteners are installed in the valleys of the corrugated steel decking, and where adjacent stand-off fasteners along a joist are separated by at least one valley of the corrugated steel decking. 26. The composite floor system claimed in claim 1, where the decking comprises corrugated steel decking defining altering peaks and valleys, and where at least two adjacent stand-off fasteners are located in the same valley of the corrugated steel decking on that joist. 27. A composite joist floor system comprising: a first support structure;a second support structure;a plurality of joists spaced apart and extending from the first support structure to the second support structure;decking supported by the plurality of joists;a plurality of stand-off fasteners adapted to be fastened through the decking to the plurality of joists, each stand-off fastener of carbon steel comprising a lower portion and an upper portion where the lower portion has a clamping part capable of clamping the decking to the joist, the lower portion havinga threaded portion adjacent the clamping part with a through hardness of between HRB 70 and HRC 40 extending to within 1.5 of a thread pitch of the clamping part and having the lower portion of the fastener with a thread-forming portion adjacent the threaded portion of at least HRC 50 hardness adapted to enable the fastener to form threads in an upper chord of a joist, anda fluted lead portion adjacent the thread-forming portion of at least HRC 50 hardness with a nominal diameter between 80 and 98% of major diameter of the threaded portion adapted to form a fastener opening in an upper chord of a joist,the thread-forming portion having a series of lobes with recesses between said lobes structured by a failure torque to thread-forming torque of at least 3.0 and a drive torque at least 20% less than a thread-forming torque,and the upper portion of the stand-off fasteners have a through hardness of between HRB 70 and HRC 40 and, when installed, at least a portion of the upper portion of each stand-off fastener extends significantly above the decking; anda cementitious slab supported by the decking and encapsulating the upper portion of each stand-off fastener extending above the decking. 28. The composite joist floor system claimed in claim 27, the fastener has a drive torque no more than 50% of a thread-forming torque. 29. The composite joist floor system claimed in claim 27, where the lower portion of the fastener has a failure torque to thread-forming torque of at least 4.0. 30. The composite joist floor system claimed in claim 27, where the clamping portion of the lower portion of each stand-off fastener comprises a fastener drive head adapted to be used in installing the stand-off fastener and the upper portion of the stand-off fastener is sized to permit the stand-off fastener to be installed into the decking. 31. The composite joist floor system claimed in claim 30, where a SEMS anchor is positioned on the upper portion of the stand-off fastener sized to permit the stand-off fastener to installed into the decking and a joist and the SEMS anchor to engage in the cementitious slab on installing of the fastener and the cementitious slab. 32. The composite joist floor system claimed in claim 31, where the SEMS anchor is mounted adjacent a threaded portion on the upper portion of the stand-off fastener. 33. The composite joist floor system claimed in claim 27, where a fastener drive head is positioned on the upper portion of each stand-off fastener adapted to be used in installing the stand-off fastener and to engage in the cementitious slab on installing of the fastener and the cementitious slab. 34. The composite joist floor system claimed in claim 33, where a SEMS anchor is part of the clamping portion of the lower portion of each stand-off fastener and adapted to engage decking or the cementitious slab on installing of the fastener in the cementitious slab. 35. The composite joist floor system claimed in claim 27, where the threaded portion of each stand-off fastener is of at least HRC 33 through hardness and up to five threads adjacent the thread-forming portion are hardened to at least HRC 50 hardness. 36. The composite joist floor system claimed in claim 27, where the fluted lead portion has at least HRC 54 hardness. 37. The composite joist floor system claimed in claim 27, where the thread-forming portion has a shape selected from the group consisting of bilobular, trilobular, quadlobular and pentalobular. 38. The composite joist floor system claimed in claim 27, where the thread-forming portion has a quadlobular shape. 39. The composite joist floor system claimed in claim 27, where the fluted lead portion of each stand-off fastener is adapted to form a fastener opening with a diameter between 80 and 95% of major diameter of the threaded portion. 40. The composite joist floor system claimed in claim 27, where the fluted lead portion of each stand-off fastener has at least HRC 50 through hardness. 41. The composite joist floor system claimed in claim 27, where the threaded portion of each stand-off fastener has seating torque of at least 80 inch-pounds. 42. The composite joist floor system claimed in claim 27, where the threaded portion of each stand-off fastener has seating torque of between 80 and 450 inch-pounds. 43. The composite joist floor system claimed in claim 27, where the threaded portion of each stand-off fastener is back-tapered by between 0.0005 and 0.003 inch per inch of length. 44. The composite joist floor system claimed in claim 27, where the threaded portion of each stand-off fastener has less than 60° thread angle and back-tapered threads. 45. The composite joist floor system claimed in claim 27, where the threaded portion of each stand-off fastener has between 45 and 50° thread angle and back-tapered threads. 46. The composite joist floor system claimed in claim 27, where the threaded portion of each stand-off fastener meets a specification selected from the group consisting of ASTM A307, ASTM A325, ASTM A354, and ASTM A490 specification. 47. The composite joist floor system claimed in claim 27, where the threaded portion of each stand-off fastener meets a specification selected from the group consisting of SAE J429 Grade 2, SAE J429 Grade 5, and SAE J429 Grade 8. 48. The composite joist floor system claimed in claim 27, where the thread-forming portion of each stand-off fastener has thread-forming torque of no more than 100 inch-pounds. 49. The composite joist floor system claimed in claim 27, where the thread-forming portion of each stand-off fastener is between 3 and 7 thread pitches in length. 50. The composite floor system claimed in claim 27, where the decking comprises corrugated steel decking defining altering peaks and valleys, where the stand-off fasteners are installed in the valleys of the corrugated steel decking, and where adjacent stand-off fasteners along a joist are separated by at least one valley of the corrugated steel decking. 51. The composite floor system claimed in claim 27, where the decking comprises corrugated steel decking defining altering peaks and valleys, and where at least two adjacent stand-off fasteners are located in the same valley of the corrugated steel decking on that joist. 52. The composite floor system claimed in claim 27, where the fluted lead portion of each stand-off fastener has a milled point. 53. A wall panel system comprising: a metal base adapted to support placement of a cementitious material;a plurality of stand-off fasteners for fastening at spaced locations along the base, each stand-off fastener of carbon steel comprising a lower portion and an upper portion where the lower portion hasa threaded portion with a through hardness of between HRB 70 and HRC 40 and the upper portion of the stand-off fasteners has a through hardness of between HRB 70 and HRC 40,a thread-forming portion adjacent the threaded portion having a series of lobes with recesses between said lobes structured by a failure torque to thread-forming torque of at least 3.0 and a drive torque at least 20% less than a thread-forming torque adapted to enable the fastener to form threads in the base, anda fluted lead portion adjacent the thread-forming portion with a nominal diameter between 80 and 98% of major diameter of the threaded portion adapted to form a fastener opening in the base, and where, when installed, at least a portion of the upper portion of each stand-off fastener extends significantly above the base; anda cementitious slab formed on the base and encapsulating the upper portion of each stand-off fastener extending above the base to form a desired wall surface of the panel system. 54. The wall panel system as claimed in claim 53 where the thread-forming portion adjacent the threaded portion has at least HRC 50 hardness adapted to enable the fastener to form threads in the base, and a fluted lead portion adjacent the thread-forming portion of at least HRC 50 hardness. 55. The wall panel system claimed in claim 53, where the fastener has a drive torque no more than 50% of a thread-forming torque. 56. The wall panel system claimed in claim 53, where side walls are provided at least during placing and curing of the cementitious slab. 57. The wall panel system claimed in claim 53, where the base comprises corrugated metal decking. 58. The wall panel system claimed in claim 53, where the clamping portion of the lower portion of each stand-off fastener comprises a fastener drive head adapted to be used installing the stand-off fastener and the upper portion of the stand-off fastener is sized to permit the stand-off fastener to be installed into the base. 59. The wall panel system claimed in claim 58, where a SEMS anchor is positioned on the upper portion of the stand-off fastener sized to permit the stand-off fastener to fasten into the base and the SEMS anchor engages in the cementitious slab on installing of the fastener and placement of the cementitious slab. 60. The wall panel system claimed in claim 59, where the SEMS anchor is mounted adjacent a threaded portion on the upper portion of the stand-off fastener. 61. The wall panel system claimed in claim 53, where a fastener drive head is positioned on the upper portion of each stand-off fastener adapted to be used in fastening the stand-off fastener to the base and to engage in the cementitious slab on installing of the fastener and placement of the cementitious slab. 62. The wall panel system claimed in claim 61, where a SEMS anchor is part of the lower portion of each stand-off fastener and adapted to engage the base and the cementitious slab on placement of the cementitious slab. 63. The wall panel system claimed in claim 53, where the threaded portion of each stand-off fastener is of at least HRC 33 through hardness and up to five threads adjacent the thread-forming portion are hardened to at least HRC 50 hardness. 64. The wall panel system claimed in claim 53, where the fluted lead portion has at least HRC 54 hardness. 65. The wall panel system claimed in claim 53, where the thread-forming portion of each stand-off fastener has a shape selected from the group consisting of bilobular, trilobular, quadlobular and pentalobular. 66. The wall panel system claimed in claim 53, where the threaded portion of each stand-off fastener meets a specification selected from the group consisting of ASTM A307, ASTM A325, ASTM A354, and ASTM A490 specification. 67. The wall panel system claimed in claim 53, where the threaded portion of each stand-off fastener meets a specification selected from the group consisting of SAE J429 Grade 2, SAE J429 Grade 5, and SAE J429 Grade 8. 68. The wall panel system claimed in claim 53, where the fluted lead portion of each stand-off fastener has a milled point.
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