John R Kriaski

US Patent:

6357124, Mar 19, 2002

Filed:

Jul 10, 1998

Appl. No.:

09/113865

Inventors:

Daniel P. Wall - Humboldt TN
John R. Kriaski - Jackson TN

Assignee:

Porter-Cable Corporation - Jackson TN

International Classification:

B26D 542

US Classification:

30376, 30377, 30394

Abstract:

The present disclosure relates to a jig saw including a base structure, and a housing pivotally moveable relative to the base structure about a first axis that extends longitudinally along the base structure. A motor is positioned within the housing. The motor reciprocates a blade in an up and down motion. A connecting member extends between the housing and the base structure. The saw also includes a first wedge that cooperates with the connecting member to clamp the housing relative to the base structure. The first wedge is moveable to a first position in which the connecting member is caused to compress the housing and the base structure together such that pivotal movement between the housing and the base structure is inhibited. The first wedge is also moveable to a second position in which the housing can be manually pivoted relative to the base.

US Patent:

6665923, Dec 23, 2003

Filed:

Aug 8, 2001

Appl. No.:

09/923434

Inventors:

Alan Gene Phillips - Jackson TN
John Robert Kriaski - Jackson TN
Daniel Paxton Wall - Humboldt TN

Assignee:

Porter-Cable/Delta - Jackson TN

International Classification:

B23P 1100

US Classification:

2952511, 2952501, 81475

Abstract:

A clutch specially adapted for a screw gun includes an output clutch and a driving clutch. The output clutch is movable axially to engage the driving clutch. A helical spline arrangement on the driving clutch causes the driving clutch to move axially towards the output clutch a short distance when torque is transferred through the clutch. When the clutch slips and the torque is released, the driving clutch moves axially away from the output clutch a short distance and a gap is created between the output clutch and driving clutch which prevents clashing. Also, a retaining ring is mounted to an input spindle to limit the axial movement of the driving clutch.

US Patent:

6758116, Jul 6, 2004

Filed:

Jun 28, 2001

Appl. No.:

09/892548

Inventors:

John Robert Kriaski - Jackson TN
Daniel Paxton Wall - Humboldt TN

Assignee:

Porter-Cable/Delta - Jackson TN

International Classification:

B25B 1300

US Classification:

81 54, 173 13, 81429

Abstract:

A depth adjusting system for a screw gun comprises a base supported on the screw gun, an on/off collar removably attached to the base, and an adjusting collar and a depth locator mounted to the on/off collar. The adjusting collar rotates but cannot move axially relative to the on/off collar. Rotation of the adjusting collar causes the depth locator to move axially relative to the on/off collar for adjusting the depth setting. An indexing system is provided between the adjusting collar and the on/off collar for retaining the angular position of the adjusting collar and the depth setting. The on/off collar can be easily attached and detached from the base with a simple axial force applied to the on/off collar.

US Patent:

6912932, Jul 5, 2005

Filed:

Aug 20, 2003

Appl. No.:

10/643893

Inventors:

John Robert Kriaski - Jackson TN, US
Daniel Paxton Wall - Humboldt TN, US

Assignee:

Porter-Cable/Delta - Jackson TN

International Classification:

B25B013/00

US Classification:

81 54, 81429, 173 13

Abstract:

A depth adjusting system for a screw gun comprises a base supported on the screw gun, an on/off collar removably attached to the base, and an adjusting collar and a depth locator mounted to the on/off collar. The adjusting collar rotates but cannot move axially relative to the on/off collar. Rotation of the adjusting collar causes the depth locator to move axially relative to the on/off collar for adjusting the depth setting. An indexing system is provided between the adjusting collar and the on/off collar for retaining the angular position of the adjusting collar and the depth setting. The on/off collar can be easily attached and detached from the base with a simple axial force applied to the on/off collar.

US Patent:

7047848, May 23, 2006

Filed:

Feb 11, 2003

Appl. No.:

10/361609

Inventors:

Bimal Kumar Chaterjee - Jackson TN, US
Alan Phillips - Jackson TN, US
John Robert Kriaski - Jackson TN, US
Daniel Paxton Wall - Humboldt TN, US

Assignee:

Portar-Cable/Delta - Jackson TN

International Classification:

B25B 23/157
B23P 11/00

US Classification:

81475, 2952511

Abstract:

A process for manufacturing highly wear and fatigue resistant steel components for power tools includes melting and mixing together a readily available base steel and alloying elements. The molten steel is cast into near-net-shape in an investment casting process. This method is cost competitive with forming the same component from steel with fewer alloying elements. In particular, clutch plates for a drill/driver or screw gun can be formed in this manner from a steel containing relatively large amounts of nickel and chromium, such as SAE 9310 steel, or from a steel containing a relatively large total amount of molybdenum and tungsten, such as AISI M2 steel.

US Patent:

7438629, Oct 21, 2008

Filed:

Jan 13, 2006

Appl. No.:

11/331048

Inventors:

Donald Robert Bosten - Jackson TN, US
John Robert Kriaski - Jackson TN, US
Randy Glen Cooper - Milan TN, US
John Charles Smith - Jackson TN, US

Assignee:

Black & Decker Inc. - Newark DE

International Classification:

B24B 1/00

US Classification:

451 28, 451356, 451164

Abstract:

An in-line profile sander is disclosed. The in-line profile sander includes a sander housing configured to be grasped by a user. A plurality of interchangeable profile sanding pads can be mounted at a head of the housing. The sander includes an in-line oscillating mechanism for moving the profile sanding pads in a linear oscillating motion.

US Patent:

8167683, May 1, 2012

Filed:

Oct 20, 2008

Appl. No.:

12/254491

Inventors:

Donald Robert Bosten - Jackson TN, US
John Robert Kriaski - Jackson TN, US
Randy Glen Cooper - Milan TN, US
John Charles Smith - Jackson TN, US

Assignee:

Black & Decker Inc. - Newark DE

International Classification:

B24B 23/00

US Classification:

451 28, 451356, 451495

Abstract:

An in-line profile sander is disclosed. The in-line profile sander includes a sander housing configured to be grasped by a user. A plurality of interchangeable profile sanding pads can be mounted at a head of the housing. The sander includes an in-line oscillating mechanism for moving the profile sanding pads in a linear oscillating motion.

US Patent:

20020016143, Feb 7, 2002

Filed:

Jun 19, 2001

Appl. No.:

09/884853

Inventors:

Donald Bosten - Jackson TN, US
John Kriaski - Jackson TN, US
Randy Cooper - Milan TN, US
John Smith - Jackson TN, US

Assignee:

Porter-Cable/Delta - Jackson TN

International Classification:

B24B023/00
B24B027/08

US Classification:

451/344000, 451/357000

Abstract:

An in-line sander comprising a sander body which houses a motor coupled to an in-line oscillating mechanism. The in-line oscillating mechanism is adapted and configured to move a sanding pad in a linear oscillating motion. A corner or detail pad has a substantially flat lower surface and a substantially pointed front portion bounded laterally by two substantially-linear corner-sanding edges having an included angle of less than 90 degrees. A forward end of this substantially pointed front portion of the preferred corner or detail pad protrudes ahead of a front end of the sander body throughout the linear oscillating motion of the pad. The front portion of the preferred corner or detail pad has particular application for sanding into corners of a carcass. For example, with the preferred detail or corner pad installed, when the sander is in use where three workpiece surfaces of a carcass meet one another perpendicularly to form a corner, sandpaper supported by the pad under the forward end of the pad will effectively sand into the corner on any included surface of the corner. A preferred embodiment of the present corner or detail pad has at least one substantially linear side edge which is aligned substantially parallel to the linear oscillating motion of the sander. This substantially linear side edge of the pad protrudes laterally at least as far as the maximum width of the sander body. With such a configuration, when the sander is in use where two workpiece surfaces meet one another at an included angle along edges of less than 180 degrees, the surfaces of each workpiece which form the included angle can be sanded up to the adjoining workpiece surface by sandpaper supported by the pad under the substantially linear side edge of the pad. An alternate preferred sanding pad, sometimes referred to in the present application as a shutter pad, has at least one extended substantially linear side edge which is aligned substantially parallel to the linear oscillating motion of the sander and which extends laterally a conspicuous distance beyond the maximum width of the sander body. With such a shutter pad configuration, when the sander is in use on a project such as the louvers on a shutter, where a lower workpiece upper surface is below an upper workpiece by a distance greater than the thickness of the pad but is inaccessible by the sander body, sandpaper supported by the pad below the extended substantially linear side edge can be effectively used on the inaccessible lower workpiece upper surface within the conspicuous distance that the extended substantially linear side edge protrudes laterally beyond the sander body.