Section milling

Details Section milling Section milling

1995-09-22

1997-07-01

Neuder, William P.

Boring or penetrating the earth

Cutter element laterally shiftable below ground

Cutter element shifted by fluid pressure

166 558, E21B 1026

Patent

active

056427875

ABSTRACT:
Section mills have been invented that have one or more blades whose tops are rotatably extendable outward from a mill body as bottoms of the blade(s) rotate about a fixed point, the blade bottoms rotatably secured to the mill body so that, in response to a downwardly moving wash tube contacting the blades, tops of the blades move out from the mill body. In one aspect the blades have a milling surface which is of such an outward extent and which is parallel to a central longitudinal axis of the mill body when the blades are fully extended so that the blades achieve "full sweep" milling.

REFERENCES:
patent: 2389235 (1945-11-01), Harrison
patent: 2481637 (1949-09-01), Yancey
patent: 2644670 (1953-07-01), Baker et al.
patent: 2690217 (1954-09-01), Robishaw
patent: 2863641 (1958-12-01), Kammerer
patent: 2899000 (1959-08-01), Medders et al.
patent: 3195636 (1965-07-01), Cordary et al.
patent: 3224507 (1965-12-01), Cordary et al.
patent: 3331439 (1967-07-01), Sanford
patent: 3351144 (1967-11-01), Park
patent: 3419077 (1968-12-01), Sanford
patent: 4119151 (1978-10-01), Smith
patent: 4431065 (1984-02-01), Andrews
patent: 4646826 (1987-03-01), Bailey et al.
patent: 4796709 (1989-01-01), Lynde et al.
patent: 4809793 (1989-03-01), Hailey
patent: 4887668 (1989-12-01), Lynde et al.
patent: 4938291 (1990-07-01), Lynde et al.
patent: 4978260 (1990-12-01), Lynde et al.
patent: 4984488 (1991-01-01), Lunde et al.
patent: 5014778 (1991-05-01), Lynde et al.
patent: 5014780 (1991-05-01), Skipper
patent: 5018580 (1991-05-01), Skipper
patent: 5038859 (1991-08-01), Lynde et al.
patent: 5058666 (1991-10-01), Lynde et al.
patent: 5086838 (1992-02-01), Cassel et al.
patent: 5086852 (1992-02-01), Van Buskirk
patent: 5150755 (1992-09-01), Cassel et al.
patent: 5199513 (1993-04-01), Stewart et al.
patent: 5201817 (1993-04-01), Hailey
patent: 5242017 (1993-09-01), Hailey
patent: 5265675 (1993-11-01), Hearn et al.
patent: 5297630 (1994-03-01), Lynde et al.
patent: 5350015 (1994-09-01), Hailey
patent: 5373900 (1994-12-01), Lynde et al.
patent: 5385205 (1995-01-01), Hailey
patent: 5456312 (1995-10-01), Lynde et al.
"1990--91 General Catalog," A-1 Bit & Tool Co., p. 10, 1990.
"General Catalog 68--69," A-1 bit & Tool Co., pp. 131, 133, 142; 1968.
"1976--77 General Catalog," A-1 Bit & Tool Co., pp. 110, 111, 123, 124; 1976.

Affiliated with

Also associated with

Rating

Section milling does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-589902