Nut and seat assembly for clamp
DCFirst Claim
1. A pipe clamp made of plastics material comprising at least first and second parts having a pivotal connection to allow said at least first and second parts to be opened for receiving a pipe, and a nut and bolt which can be tightened to secure the clamp on the pipe, one of said parts having ends and having a bifurcation at one end through which the bolt passes, wherein projections are provided on the bifurcation and corresponding indentations are provided in the nut so as to mate the bifurcation to the nut when the nut and bolt are tightened.
4 Assignments
Litigations
0 Petitions
Accused Products
Abstract
A nut and seat assembly is provided for a clamp. A nut is tightened onto a bolt and a clamp member has a seat for the nut and an aperture defined by prongs. The bolt is inserted laterally into the aperture and the nut is tightened axially against the set. Tightening the nut onto the seat prevents outward movement of the prongs away from the bolt as the nut holds the prongs in place.
45 Citations
27 Claims
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1. A pipe clamp made of plastics material comprising at least first and second parts having a pivotal connection to allow said at least first and second parts to be opened for receiving a pipe, and a nut and bolt which can be tightened to secure the clamp on the pipe, one of said parts having ends and having a bifurcation at one end through which the bolt passes, wherein projections are provided on the bifurcation and corresponding indentations are provided in the nut so as to mate the bifurcation to the nut when the nut and bolt are tightened.
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2. A clamp, made of plastics material, for clamping pipework, comprising:
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a first clamp member; a second clamp member; a bolt; and a nut such that when the first clamp member is attached to the second clamp member and the bolt is attached to the first clamp member the nut can be tightened onto the bolt so as to clamp pipework between the first and second clamp members, wherein the second clamp member comprises an aperture defined by prongs and into which the bolt can be moved laterally, the nut mates directly in contact with a seat integrally formed on the second clamp member and tightening of the nut onto the second clamp member prevents splaying of the prongs, wherein projections are provided on the seat and corresponding indentations are provided in the nut so as to mate the prongs to the nut when the nut and bolt are tightened. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 26)
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13. A nut and seat assembly for a clamp made of plastics material, comprising
(i) a nut to be tightened onto a bolt; - and
(ii) a clamp member having a seat integrally formed thereon for the nut and an aperture defined by prongs so the bolt can be inserted laterally into the aperture and the nut can be tightened axially against the seat; wherein the nut and seat mate directly in contact with each other and tightening of the nut onto the seat prevents outward movement of the prongs away from the bolts, wherein projections are provided on the seat and corresponding indentations are provided in the nut so as to mate the prongs to the nut when the nut and bolt are tightened. - View Dependent Claims (14, 15, 16, 17)
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18. A clamp, having an upper member and lower member, to go around a pipe, a nut and a bolt,
wherein the bolt is separate from the lower clamp member and comprises a retention means and the lower clamp member comprises an aperture through which the bolt passes such that when the bolt has been passed through the aperture removal of the bolt from the lower clamp member is resisted by the retention means, and wherein the first and second clamp members are separate but pivotally engaged directly to each other in a snap-fit relation and wherein one of the first and second members comprises a resilient retention means and the other comprises a surface against which acts the retention means, and wherein it is easy to snap the first and second members into pivotal engagement but more difficult to disengage the first and second clamp members thereafter.
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19. A pipe clamp made of plastics material, comprising a first part and a second part, each having first and second ends, wherein the first ends of each of said first and second parts are pivotally connected to allow the first and second parts to be opened for receiving a pipe, and a nut and bolt which can be tightened to secure the clamp on the pipe, the second end of one of said first and second parts having a bifurcation through which the bolt passes, wherein the second end having the bifurcation engages with the nut when it is tightened on the bolt so as to limit opening of the bifurcation, and wherein further projections extend from the second end of one of said first and second parts and prevent overclosing of the clamp.
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20. A nut and seat assembly made of plastics material for a clamp made of plastics material, comprising
(i) a nut to be tightened onto a bolt; - and
(ii) a clamp member having a seat integrally formed thereon for the nut and an aperture defined by prongs so the bolt can be inserted laterally into the aperture and the nut can be tightened axially against the seat; wherein tightening of the nut onto the seat prevents outward movement of the prongs away from the bolt; and
wherein projections are provided on the seat and corresponding indentations are provided in the nut so as to mate the prongs to the nut when the nut and bolt are tightened.
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21. A clamp made of plastics material, for clamping pipework, comprising:
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a first clamp member; a second clamp member; a bolt; and a nut such that when the first clamp member is attached to the second clamp member and the bolt is attached to the first clamp member the nut can be tightened onto the bolt so as to clamp pipework between the first and second clamp members, wherein the second clamp member comprises an aperture defined by prongs and into which the bolt can be moved laterally, and tightening of the nut onto the second clamp member directly in contact therewith prevents splaying of the prongs; and
wherein projections are provided on the seat and corresponding indentations are provided in the nut so as to mate the prongs to the nut when the nut and bolt are tightened. - View Dependent Claims (27)
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22. A method of securing a clamp made of plastics material around a pipe, comprising:
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locating an upper clamp member over the pipe; locating a lower clamp member under the pipe, respective first ends of the clamp members being connected, optionally via a pivot, and a bolt being attached to the second end of one of the clamp members; and tightening a nut onto the bolt so the nut engages with a seat on the second end of the other clamp member so as to close the clamp; wherein the seat comprises prongs forming an open-sided aperture for the bolt and tightening the nut prevents outward movement of the prongs away from the bolt; tightening the nut onto the bolt so as to move the prongs inwards and tighten the prongs around the bolt; and
wherein projections are provided on the seat and corresponding indentations are provided in the nut so as to mate the prongs to the nut when the nut and bolt are tightened.
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23. A pipe clamp made of plastics material comprising at least first and second parts having a pivotal connection to allow the said at least first and second parts to be opened for receiving a pipe, and a nut and bolt which can be tightened to secure the clamp on the pipe, one of said parts having ends and having a bifurcation at one end through which the bolt passes, wherein said end mates directly with the nut when it is tightened on the bolt so as to limit opening of the bifurcation, and wherein a concave recess provided on an inside surface of the nut cooperates with a convex portion or portions on the end of the part through which the bolt passes so that tightening the bolt urges the bifurcation together.
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24. A nut and seat assembly for a clamp made of plastics material, comprising
(i) a nut to be tightened onto a bolt; - and
(ii) a clamp member having a seat for the nut and an aperture defined by prongs so the bolt can be inserted laterally into the aperture and the nut can be tightened axially against the seat; wherein the nut and seat mate directly and tightening of the nut onto the seat prevents outward movement of the prongs away from the bolt; and wherein the nut comprises indentations at or towards a lower edge of the nut which co-operates with corresponding projections on the seat so that as the nut is tightened onto the bolt action of the surfaces on each other prevents outward movement of the prongs and pushes the prongs together and tightens them around the bolt.
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25. A nut and seat assembly for a clamp made of plastics material, comprising
(i) a nut to be tightened onto a bolt; - and
(ii) a clamp member having a seat for the nut and an aperture defined by prongs so the bolt can be inserted laterally into the aperture and the nut can be tightened axially against the seat; wherein the nut and seat mate directly and tightening of the nut onto the seat prevents outward movement of the prongs away from the bolt; and wherein the nut comprises indentations at or towards a lower edge of the nut which co-operates with corresponding projections on the seat so that as the nut is tightened onto the bolt action of the surfaces on each other prevents outward movement of the prongs.
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Specification