Double nut tensioner assembly for pre-stretched tie rods

Details Double nut tensioner assembly for pre-stretched tie rods Double nut tensioner assembly for pre-stretched tie rods

2005-09-06

2005-09-06

Jones, David (Department: 3725)

Metal deforming

By application of fluent medium, or energy field

Using fixed die

C072S455000, C100S214000, C100S25800A

Reexamination Certificate

active

06938450

ABSTRACT:
The tensioner assembly is provided for clamping at least two objects and comprises a tie rod member, a thrust ring positioned on the tie rod member against one of the objects, a first retaining member for removably engaging a distal end of the tie rod member, and a second retaining member for removably engaging the distal end of the tie rod member between the thrust ring and said first nut member and spaced apart therefrom. Each of the first and second retaining members is provided with a set of jackbolts adapted to engage complementary holes therein and to extend from the holes to compressively bias the thrust ring. The total load experienced by the tensioner assembly is shared by two retaining members so that load carried by the first retaining member remains substantially constant during operation, while the second retaining member is subject to stress variation.

REFERENCES:
patent: 1251430 (1917-12-01), Sherman
patent: 1636057 (1927-07-01), Jones
patent: 1974148 (1934-09-01), Byerlein
patent: 2934968 (1960-05-01), Neumann et al.
patent: 4240342 (1980-12-01), Delmer
patent: 4346578 (1982-08-01), Harrison et al.
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patent: 5950471 (1999-09-01), Everlove, Jr.
patent: 6015226 (2000-01-01), Weller et al.
patent: 6062057 (2000-05-01), Minnerop
patent: 6250216 (2001-06-01), Bornhorst
patent: 6536251 (2003-03-01), Marando et al.

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