IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0870121
(2010-08-27)
|
등록번호 |
US-8523243
(2013-09-03)
|
발명자
/ 주소 |
- Geese, Brian T.
- Ignaczak, Brian T.
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
7 |
초록
▼
A pipe clamp that includes a band, tightening mechanism for the band, a split sleeve within the band, and gasket located inside a circumferential channel in the split sleeve. The split sleeve includes a tongue-and-groove joint in which the tongue has at least one side edge that confronts and engages
A pipe clamp that includes a band, tightening mechanism for the band, a split sleeve within the band, and gasket located inside a circumferential channel in the split sleeve. The split sleeve includes a tongue-and-groove joint in which the tongue has at least one side edge that confronts and engages a side edge of the groove during penetration of the tongue into the groove in response to tightening of the outer band using the fastening mechanism. This provides a metal-to-metal seal at the tongue-and-groove joint. The relative construction of the tongue and groove is such that during penetration of the tongue into the groove, there are areas of spaced separation between the confronting side edges of the tongue and groove. Also, during tightening, the gasket is forced into these areas of spaced separation which provides a second, gasketed seal at the tongue-and-groove joint.
대표청구항
▼
1. A pipe clamp comprising: a band extending circumferentially from a first end to a second end;a tightening mechanism connected to said band near said first and second ends, said tightening mechanism including at least one fastener to bring said first and second ends toward each other to tighten sa
1. A pipe clamp comprising: a band extending circumferentially from a first end to a second end;a tightening mechanism connected to said band near said first and second ends, said tightening mechanism including at least one fastener to bring said first and second ends toward each other to tighten said band;a split sleeve located radially inside of said band, said split sleeve extending axially from a first side to a second side and extending circumferentially from a first circumferential end to a second circumferential end, said split sleeve having at least one channel located between said first and second sides and extending between said first and second circumferential ends, said split sleeve including at least one tongue-and-groove joint, said tongue being located at said first circumferential end and said groove being located at said second circumferential end confronting said tongue, said tongue having a side edge and said groove having a side edge that confronts said side edge of said tongue at one or more points along their length during penetration of said tongue into said groove such that said tongue and groove have areas of spaced separation between their confronting side edges when said band is fully tightened about a pair of abutting pipe ends; andat least one gasket located radially inside of said split sleeve and received in said channel, wherein, upon tightening of said band and penetration of said tongue into said groove, said at least one gasket is wedged into at least some of said areas of spaced separation between said side edges of said tongue and groove and forms a seal therebetween. 2. The pipe clamp of claim 1, wherein said tightening mechanism includes a first and second nut, a reaction block, a backing plate, and said at least one fastener includes a first and second bolt, wherein upon assembly said first and second bolts are inserted through said first and second ends of said band, through said reaction block, and through said backing plate. 3. The pipe clamp of claim 1, wherein said split sleeve has an unchanneled portion located between said first and second sides and extending between said first and second circumferential ends, wherein upon tightening of said band said at least one gasket compresses against an outer surface of a first pipe, a second pipe, or both to form a seal thereat, and upon tightening of said band said unchanneled portion makes metal-to- metal contact against the outer surface of the first pipe, the second pipe, or both to form a seal thereat. 4. The pipe clamp of claim 1, wherein upon tightening of said band and penetration of said tongue into said groove, said at least one gasket compresses against an outer surface of a first pipe, a second pipe, or both and fills in a pocket formed in part by a free end of said tongue and an unpenetrated portion of said groove, said at least one gasket forming a seal thereat. 5. The pipe clamp of claim 1, wherein said at least one gasket is a split gasket extending circumferentially from a first circumferential end to a second circumferential end, said first circumferential end located at said tongue and, when not tightened and not penetrated, said first circumferential end has a circumferential overhang portion overhanging a free end of said tongue, said second circumferential end located at said groove and, when not tightened and not penetrated, said second circumferential end has a circumferential overhang portion overhanging a bottom edge of said groove. 6. The pipe clamp of claim 1, wherein said split sleeve has a first unchanneled portion located between said first side and said channel and extending between said first and second circumferential ends, said split sleeve has a second unchanneled portion located between said second side and said channel and extending between said first and second circumferential ends, upon tightening of said band said gasket compresses against an outer surface of both a first pipe and a second pipe and spans a confrontation of the first and second pipes and forms a seal thereat, upon tightening of said band said first unchanneled portion makes metal-to-metal contact against the outer surface of the first pipe and forms a seal thereat, and upon tightening of said band said second unchanneled portion makes metal-to-metal contact against the outer surface of the second pipe and forms a seal thereat. 7. The pipe clamp of claim 6, wherein said at least one tongue-and-groove joint includes a first tongue-and-groove joint located at said channel, a second tongue-and-groove joint located at said first unchanneled portion, and a third tongue-and-groove joint located at said second unchanneled portion. 8. The pipe clamp of claim 1, wherein said at least one channel includes a first channel and a second channel, said split sleeve having an unchanneled portion located between said first channel and said second channel and extending between said first and second circumferential ends, said at least one gasket includes a first gasket received in said first channel and includes a second gasket received in said second channel, upon tightening of said band said first gasket compresses against an outer surface of a first pipe and forms a seal thereat, upon tightening of said band said second gasket compresses against an outer surface of a second pipe and forms a seal thereat, and upon tightening of said band said unchanneled portion makes metal-to-metal contact against both the outer surfaces of the first and second pipes and spans a confrontation of the first and second pipes and forms a seal thereat. 9. The pipe clamp of claim 8, wherein said at least one tongue-and-groove joint includes a first tongue-and-groove joint located at said first channel, a second tongue-and-groove joint located at said second channel, a third tongue-and-groove joint located at said unchanneled portion, and a fourth tongue-and-groove joint located at said unchanneled portion. 10. The pipe clamp of claim 1, wherein said at least one gasket is located at said tongue and, when not tightened and not penetrated, has a lateral overhang portion overhanging said side edge of said tongue, and wherein, upon tightening of said band and penetration of said tongue into said groove, said lateral overhang portion is wedged into at least some of said areas of spaced separation between said side edges of said tongue and groove and remains therein and forms a seal therebetween. 11. A pipe clamp comprising: a band extending circumferentially from a first end to a second end;a tightening mechanism connected to said band near said first and second ends, said tightening mechanism including at least one fastener to bring said first and second ends toward each other to tighten said band;a split sleeve located radially inside of said band, said split sleeve extending axially from a first side to a second side and extending circumferentially from a first circumferential end to a second circumferential end, said split sleeve having at least one channel located between said first and second sides and extending between said first and second circumferential ends, said split sleeve including at least one tongue-and-groove joint, said tongue being located at said first circumferential end and said groove being located at said second circumferential end, said tongue and groove each having a side edge; andat least one gasket located radially inside of said split sleeve and received in said channel, wherein, upon tightening of said band and penetration of said tongue into groove, said side edges of said tongue and groove confront each other at one or more points to form a spaced separation at the confrontation, and said at least one gasket is wedged between said side edges of said tongue and groove at the spaced separation to form a gasketed seal thereat. 12. A pipe clamp comprising: a band extending circumferentially from a first end to a second end;a tightening mechanism connected to said band near said first and second ends, said tightening mechanism including at least one fastener to bring said first and second ends toward each other to tighten said band;a split sleeve located radially inside of said band, said split sleeve extending axially from a first side to a second side and extending circumferentially from a first circumferential end to a second circumferential end, said split sleeve having at least one channel located between said first and second sides and extending between said first and second circumferential ends, said split sleeve including at least one tongue-and-groove joint, said tongue being located at said first circumferential end and said groove being located at said second circumferential end confronting said tongue; andat least one split gasket located radially inside of said split sleeve and received in said channel, said at least one split gasket extending circumferentially from a first circumferential end to a second circumferential end, said first circumferential end located at said tongue and, when not tightened and penetrated, said first circumferential end has a first circumferential overhang portion overhanging a free end of said tongue, said second circumferential end located at said groove and, when not tightened and not penetrated, said second circumferential end has a second circumferential overhang portion overhanging a bottom edge of said groove;wherein, upon tightening of said band and penetration of said tongue into said groove, said first and second circumferential overhang portions of said at least one split gasket compress against each other in the circumferential direction, and said at least one split gasket compresses against an outer surface of a first pipe, of a second pipe, or of both and at least one of said circumferential portions fills in a pocket formed in part by the free end of said tongue, an unpenetrated portion of said groove, and said bottom edge of said groove, said at least one split gasket forming a seal at said pocket. 13. The pipe clamp of claim 12, wherein said split sleeve has a first unchanneled portion located between said first side and said channel and extending between said first and second circumferential ends, said split sleeve has a second unchanneled portion located between said second side and said channel and extending between said first and second circumferential ends, said at least one tongue-and-groove joint includes a first tongue-and-groove joint located at said channel, a second tongue-and-groove joint located at said first unchanneled portion, and a third tongue-and-groove joint located at said second unchanneled portion. 14. The pipe clamp of claim 13, wherein, upon tightening of said band and penetration of said tongues into said grooves of said first and second and third tongue-and-groove joints, a side edge of said tongue and a side edge of said groove of said first tongue-and-groove joint confront each other at one or more points to form a spaced separation at the confrontation and said at least one split gasket is wedged between said side edges of said first tongue-and-groove joint at the spaced separation to form a gasketed seal thereat, a side edge of said tongue and a side edge of said groove of said second tongue-and-groove joint directly contact each other to form a metal-to-metal seal thereat, and a side edge of said tongue and a side edge of said groove of said third tongue-and-groove joint directly contact each other to form a metal-to-metal seal thereat.
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