Variable-fulcrum pliers

Details Variable-fulcrum pliers Variable-fulcrum pliers

1992-03-02

1992-08-25

Kisliuk, Bruce M.

Tools

Tool jaw

Adjustable relationship between jaw

81405, B25B 704

Patent

active

051408767

ABSTRACT:
A pair of pliers has two opposingly curved halves to form jaws on one end and handles on the other end. One of the halves includes a primary, fised pivot blot, and a secondary, fixed pivot lug, adjacent to the pivot bolt. The other half has an opening in the pivot area with a recess on one side to hold the fixed pivot; the other side being arced about the recess and adjacent to, but just clearing the pivot lug. A spring on the other half holds the fixed pivot in the recess for basic opening and closing of the jaws of the pliers, but when the jaws engage a solid object, the fixed pivot comes out of its recess, and the pivot lug, which is toothed, engages the adjacent portion of the arced side of the opening, which is also toothed, to shift the fulcrum of the pliers from the fixed pivot on the one side of the opening to the pivot lug on the other side. The orientation of the arc along the other side, and the relative position of the pivot lug may improve the mechanical advantage and the effectiveness of the pliers.

REFERENCES:
patent: 1565210 (1925-12-01), Seiber
patent: 1639183 (1927-08-01), Ingram
patent: 1763527 (1930-06-01), Jones
patent: 3232152 (1966-02-01), Miller

Affiliated with

Also associated with

Rating

Variable-fulcrum pliers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable-fulcrum pliers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable-fulcrum pliers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-377591