Fastening tool and fastening bolt

Details Fastening tool and fastening bolt Fastening tool and fastening bolt

2008-05-13

2008-05-13

Sandy, Robert J. (Department: 3679)

Joints and connections

Split end with laterally movable opposed portions

C403S290000, C403S309000, C403S313000, C411S537000, C024S279000

Reexamination Certificate

active

07371027

ABSTRACT:
In a fastening tool in which fastening members may be inclined as they are threadedly inserted together whereby almost no displacement load is applied to the members, a member having a bolt through hole with a tapered seat surface, and a fastening bolt that includes a bolt body provided about its outer periphery with a male thread, and a head provided on an end of the bolt body that has a diameter greater than that of the bolt body, in which the head has a lower outwardly curved tapered surface whose diameter is reduced toward the bolt body so that the lower surface abuts against the tapered seat surface when the fastening tool is used.

REFERENCES:
patent: 1417149 (1922-05-01), Dodds
patent: 3868193 (1975-02-01), Schott
patent: 3917424 (1975-11-01), Zugel
patent: 4116572 (1978-09-01), Heldmann et al.
patent: 4619545 (1986-10-01), Kuttenbaum
patent: 4848951 (1989-07-01), Boogerman et al.
patent: 5590431 (1997-01-01), O'Connell
patent: 5997229 (1999-12-01), Akers
patent: 6477923 (2002-11-01), Amis
patent: 2004/0151538 (2004-08-01), Landwehr
patent: 11-125265 (1999-05-01), None
patent: 2001-295851 (2001-10-01), None

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