Lance M Nelson

US Patent:

6834434, Dec 28, 2004

Filed:

Sep 23, 2003

Appl. No.:

10/668647

Inventors:

Lance Nelson - Hudson MA 01749

International Classification:

B43L 1300

US Classification:

33 181

Abstract:

A spring-loaded engraving toolholder applies a relatively constant pressure to an engraving toolbit as the toolbit is pushed against a material to be marked. The spring-loaded engraving toolholder is held in a collet or endmill toolholder and placed into the spindle of a standard numerical control (N. C. ) milling type machine. When the toolbit is pressed against a material and moved along the surface, a consistent mark is produced even if the surface of the material is uneven or not parallel to the plane of motion of the machine.

US Patent:

7093368, Aug 22, 2006

Filed:

May 9, 2005

Appl. No.:

11/125346

Inventors:

Lance Nelson - Hudson MA, US

International Classification:

B43L 13/00

US Classification:

33 181

Abstract:

Engraving tool bit depth controlling nosepiece adjustment devices establish a precise protrusion distance that an engraving tool bit protrudes from the end of the nosepiece of a spring loaded engraving tool, that is in turn inserted within and driven by a standard machine tool such as a cnc type milling machine. One rotational adjustment device establishes the axial position of the nosepiece with respect to a collet nut of the engraving tool and another adjustment device employs annular ring spacers in the form of washers between the nosepiece and collet nut to precisely establish the desired engraving tool bit protrusion distance from the end of the nosepiece. This modification of a spring loaded engraving tool beneficially prevents the engraving tool bit from being able to plunge too deeply into the workpiece, particularly at the start of each engraved line, to thus ensure that all the lines will be consistent.

US Patent:

7237390, Jul 3, 2007

Filed:

Apr 21, 2005

Appl. No.:

11/111237

Inventors:

Lance Nelson - Hudson MA, US

International Classification:

F25B 21/02

US Classification:

62 364, 62389

Abstract:

A cooling sink is positioned within a cooling chamber having a 0. 75-1. 50 gallon capacity, for directly contacting pressurized beer therein, the cooling sink having a substantial surface portion in contact with the beer for enabling heat extracted from said beer to be rapidly conveyed to said cooling device. The cooling sink has a deep trench therein for reducing the mass of the cooling portion while increasing the surface area contacting the beer. A valve is employed at the top of the cooling chamber to allow the cooling reservoir to be completely filled with beer during periods of use, and any developing undesired foam can be removed from time to time by opening this valve. Also, the pickup tube attached to the dispensing tap picks up beer from the bottom of the cooling chamber, to minimize foam in the beer dispensed.

US Patent:

7607871, Oct 27, 2009

Filed:

Apr 5, 2007

Appl. No.:

11/732891

Inventors:

Lance Nelson - Hudson MA, US

International Classification:

B23B 49/00

US Classification:

408113, 408110, 408202, 408241 S

Abstract:

A floating tool-bit depth controlling nosepiece for a spring loaded tool holder is used to countersink holes of equal size when the height of the work piece material changes. The floating tool-bit depth controlling nosepiece, driven by a cnc machine, is rigidly coupled to the floating portion of the tool holding element. The floating depth controlling nosepiece has a bearing on the end to allow an area of the nosepiece to stop rotating when the nosepiece is pressed against the work-piece surface. Since the area of the nosepiece that comes into contact with the work-piece is no longer spinning in relationship with the work-piece, the possibility of scratching the work-piece surface is reduced. Additionally, the nosepiece has cutouts therein to expel machined chips during countersinking of holes.

US Patent:

8011648, Sep 6, 2011

Filed:

Mar 23, 2006

Appl. No.:

11/387609

Inventors:

Lance Nelson - Hudson MA, US

International Classification:

H01L 21/683

US Classification:

269305, 269 95, 269138

Abstract:

An elongated clamping member upon a conventional pallet support table extends its clamping range by providing several screw-head receiving portions for receiving a conventional clamping screw that presses against a selected screw-head receiving portion to cause the clamping member to press against a work-piece. A first edge portion of the clamping member is positioned a first distance from a first screw-head receiving portion, and a second screw-head receiving portion is positioned a second distance from a second edge portion of the clamping member opposite the first edge portion, this difference ensuring that the clamping screw moves the clamping member in a forward direction toward the work-piece rather than away from the work-piece. A work-stop employing a conventional flat head screw has several peripheral flats, positioned at progressively increasing distances from each flat to a central portion of the work-stop member to further extend the clamping range of the moveable clamp.

US Patent:

8021085, Sep 20, 2011

Filed:

Feb 23, 2007

Appl. No.:

11/710451

Inventors:

Lance Nelson - Hudson MA, US

International Classification:

B23C 5/12

US Classification:

407 54, 407 65, 407 62, 409234

Abstract:

A conical shaped engraving tool has a tip configuration for increased strength that is especially desirable when engraving stainless steel. The improved conical tip consists of a thin V or U shaped slot or channel that touches the central axis of the tool and provides the cutting edge while leaving the maximum amount of material on the tip of the tool for maximum tool strength. A back angle is rotated 90 degrees to the cutting edge so that cutting forces are directed along the cutting edge instead of just on a point for further increasing the tip strength to prevent it from breaking. Also the thin slot is tilted on a slight angle away from a central axis thereby creating a downward force on the cutting edge of the tool when the tool is rotated, which results in pushing burrs into the cut creating an engraved line with better appearance.