Teikichi Amy Higa

US Patent:

40110249, Mar 8, 1977

Filed:

Feb 4, 1976

Appl. No.:

5/655182

Inventors:

Gregory Nakano - Pearl City HI
Stephen Orillo - Wahiawa HI
Tadao Uyetake - Pearl City HI
Teikichi Higa - Honolulu HI

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

B23B 4514

US Classification:

408 79

Abstract:

Properly aligned threaded or smooth bores are machined in a pipe boss fla without requiring supplementary staging or makeshift rigs. An expandable holding sleeve is inserted in the throat of the pipe and a mounting unit is brought to rest on the outer surface of the pipe boss flange. A holding sleeve is expanded to engage the pipe and a bracket grips a projection from the mounting unit at a predetermined angular rotation while an extension of the bracket ensures a perpendicular orientation. A vertical feed mechanism mounted on the bracket directs a motor driven drill assembly through holes located in the mounting plate. After the holes and threads are machined in the pipe boss flange, the expandable sleeve is loosened and the unit is removed at a minimal time and effort expenditure.

US Patent:

43599176, Nov 23, 1982

Filed:

Jun 20, 1980

Appl. No.:

6/161615

Inventors:

John F. Wilger - Honolulu HI
Gregory S. Nakano - Pearl City HI
Tadao Uyetake - Honolulu HI
Stephen Orillo - Mililani Town HI
Teikichi Higa - Pearl City HI

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

B23B 500

US Classification:

82 4R

Abstract:

A turning apparatus, intended to be mounted on a work shaft for in-place ting, may include a pair of mounting rings which are attachable to the shaft and which support a longitudinal annulate frame assembly which rotates about the area to be cut. A drive assembly is mounted on a mounting ring and engages a ring gear attached to the frame assembly for providing it rotational force. A longitudinal track assembly is mounted on and extends between the ends of the frame assembly. A carriage assembly is slidably mounted on the track assembly and is in operational engagement with a lead screw which is also mounted on the track assembly. The carriage assembly is adapted to hold a cutter for machining the shaft surface as the frame assembly rotates. A hydraulic indexing device incrementally rotates the lead screw in synchronism with the rotation of the frame assembly to move the carriage assembly and the cutter along the axis of the work piece.

US Patent:

41754719, Nov 27, 1979

Filed:

Dec 19, 1977

Appl. No.:

5/861911

Inventors:

John F. Wilger - Honolulu HI
Gregory S. Nakano - Pearl City HI
Tadao Uyetake - Honolulu HI
Stephen Orillo - Wahiawa HI
Teikichi Higa - Pearl City HI

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

B23C 120

US Classification:

408 835

Abstract:

A cutting apparatus with a vertical drive mechanism for in place machining f a valve seat which may include an annular turntable adapted to be rotatably mounted on the valve above the valve seat. A feed shaft is mounted through the turntable so as to be rotatable therewith, and a bottom of the feed shaft is adapted to receive a cutter for machining the valve seat. The vertical drive mechanism is mounted on the feed shaft and includes a nut threaded in the feed shaft and a gear combination. The gear combination may include a first portion which is fixedly connected to the nut, a second portion which operatively engages the first gear portion, and a third portion which operatively engages the second gear portion, the third gear portion being mounted for rotatable slidable friction engagement about the nut. With this arrangement, rotation of the turntable causes the vertical drive mechanism to rotate therewith as a unit, however, upon stopping the third gear portion, the latter will rotate relative to the turntable and the remainder of the vertical drive mechanism to turn the second gear portion, then the first gear portion, then the nut, then drive the feed shaft vertically.

US Patent:

42416230, Dec 30, 1980

Filed:

Jun 6, 1979

Appl. No.:

6/045883

Inventors:

John F. Wilger - Honolulu HI
Gregory S. Nakano - Pearl City HI
Tadao Uyetake - Honolulu HI
Stephen Orillo - Wahiawa HI
Teikichi Higa - Pearl City HI

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

B23B 412
B23C 120
F16H 134

US Classification:

74765

Abstract:

A vertical drive mechanism is provided for a cutting apparatus. The cutting pparatus can be used for in place machining of a valve seat which may include an annular turntable adapted to be rotatably mounted on the valve above the valve seat. A feed shaft is mounted through the turntable so as to be rotatable therewith, and a bottom of the feed shaft is adapted to receive a cutter for machining the valve seat. The vertical drive mechanism is mounted on the feed shaft and includes a nut threaded on the feed shaft and a gear combination. The gear combination may include a first portion which is fixedly connected to the nut, a second portion which operatively engages the first gear portion, and a third portion which operatively engages the second gear portion, the third gear portion being mounted for rotatable slidable friction engagement about the nut. With this arrangement, rotation of the turntable causes the vertical drive mechanism to rotate therewith as a unit, however, upon stopping the third gear portion, the latter will rotate relative to the turntable and the remainder of the vertical drive mechanism to turn the second gear portion, then the first gear portion, then the nut, then drive the feed shaft vertically.

US Patent:

40005844, Jan 4, 1977

Filed:

Apr 1, 1976

Appl. No.:

5/672579

Inventors:

Tadao Uyetake - Honolulu HI
Teikichi Higa - Pearl City HI
Stephen Orillo - Wahiawa HI
Gregory Nakano - Pearl City HI

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

B24B 1900

US Classification:

51241VS

Abstract:

A lapping apparatus for in-situ grinding of valve body seats of a gate va which includes a pair of plugs which are expandable within the inlet and outlet of openings of the gate valve for retention therein, a pair of grinding discs which are rotatably mounted on the plugs with freedom of reciprocal movement along the axes of rotation for grinding the valve body seats, a rod with an enlarged end which is extendable into the valve body for engaging the grinding discs and biasing them along the axes of rotation against the valve body seats, and a tube for receiving the rod and extendable into the valve body for engaging and driving the grinding discs about the axes of rotation.

US Patent:

45809313, Apr 8, 1986

Filed:

Dec 15, 1983

Appl. No.:

6/561843

Inventors:

John F. Wilger - Honolulu HI
Gregory Nakano - Pearl City HI
Stephen Orillo - Mililani Town HI
Teikichi Higa - Pearl City HI
William A. Berman - Honolulu HI

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

B23B 3914
B23B 4718
B23B 4514

US Classification:

408 72R

Abstract:

An in situ machine is provided for refurbishing a bore in a workpiece. The achine includes a shaft which is adapted to be fixed to the workpiece in axial alignment therewith. A tubular boring element is concentrically mounted for rotation about the fixed shaft and is adapted to extend into the workpiece bore. A cutting head is slidably mounted on the boring element for reciprocable movement therealong. A device is provided for rotating the boring element and cutting means, and another device, which is responsive to the rotating device, is provided for advancing the cutting head along the boring element.

US Patent:

39921239, Nov 16, 1976

Filed:

Oct 1, 1975

Appl. No.:

5/618725

Inventors:

Tadao Uyetake - Honolulu HI
Teikichi Higa - Pearl City HI
Stephen Orillo - Wahiawa HI
Gregory S. Nakano - Pearl City HI

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

B23B 3900

US Classification:

408104

Abstract:

An apparatus for machining pipe ends which includes an annular housing wh is adapted to receive a pipe end. A plurality of rods are threaded radially through the housing and are adjustable inwardly for engaging the pipe so as to enable axial alignment of the housing with the pipe end. A chuck is slidably mounted within the cylindrical housing for longitudinal reciprocal movement toward and away from the pipe end. The chuck is also rotatably mounted within the housing. A large nut may be threaded on the housing for positioning and retaining the chuck at selected locations along the longitudinal axis of the housing. One or more tool bits are located at one end of the chuck for machining the end of the pipe when the chuck is rotated within the housing.