Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 7393162 | Gun drill A gun-drill comprises a cutting-head detachably secured to a shank, having a common longitudinal axis and comprising mating peripheral surfaces. A shank coupling portion comprises a forwardly tapering shank fixation surface is formed at a front end of the shank, and... | 07/01/2008 |
| 7326009 | Edge-carrying drill body having an internal chip-removal channel An edge-carrying drill body intended for deep hole drilling, is rotatable around a central geometric axis and comprises a through-channel arranged for internal chip evacuation. The channel mouths in front and rear ends of the drill body. A front channel mouth is bri... | 02/05/2008 |
| 7320565 | Edge-carrying drill, method for the manufacture of the drill, and drilling tool comprising such a drill In a first aspect, the invention relates to an edge-carrying drill body (1) of the type that is intended for deep hole drilling, and which is rotatable around a geometric axis (C) as well as comprises a through channel (2) arranged for internal chip ev... | 01/22/2008 |
| 7207751 | Gun drill guide and gun drill guide assembly A gun drill guide is disclosed comprising a cylinder body member of a resilient polymer material having a central opening extending therethrough, a radially extending flange means at one end thereof to engage the end face of a bearing assembly and an annular groove ... | 04/24/2007 |
| 7147411 | Gundrill A method of forming deep holes and a gundrill therefore is disclosed. The gundrill has an elongate tubular shank and a cutting tip, each provided with a tubular central region supplying pressurized drilling fluid and a non-circular fluid cross-section defining a dri... | 12/12/2006 |
| 6976812 | Small drill A small drill includes one chip-discharging flute which is helically formed in the exterior surface of a cutting portion of the small drill. The small drill also includes a flute-shaped portion which is formed in the front region of the chip-discharging flute in the... | 12/20/2005 |
| 6935816 | High stiffness composition tool bar The present invention is to provide a machining tool bar in which mechanical machining properties are improved by using high stiffness composite material. According to the present invention, the tool bar includes an adaptor constructed to be coupled to a driv... | 08/30/2005 |
| 6682275 | Deep hole drill A deep hole drill for chip-removing drilling in a workpiece includes a body which has a cutting head and an integral cutting part. The body defines a longitudinal axis of rotation and has a longitudinal internal channel which opens into an end face of the... | 01/27/2004 |
| 6652714 | Drill stem stabilizer A drill stem stabilizer used in a decoking apparatus that includes a drill stem and a drilling structure on which the drill stem is supported for vertical movement above and within a coke drum. The stabilizer includes a bearing and a support member. The b... | 11/25/2003 |
| 6602028 | Support pad for a deep hole drill An element which defines a support pad and/or a guide bar adapted to be mounted in a seat of a cutter head of a deep hole drill comprises a body which defines a longitudinal direction and a cross-direction. The body includes an inner mounting side and an ... | 08/05/2003 |
| 6547495 | Method for reaming hole and improved reamer A method for reaming a hole in a metal substrate that minimizes the tendency of long and stringy metal chips to be formed that can surround the reamer with a "steel wool-like" mesh or mass of material, as well as an improved reamer for carrying out this m... | 04/15/2003 |
| 6309146 | Fixture for drilling long holes in doors A door drilling fixture is provided for drilling a long straight hole in a door from the hinge edge of the door to a through aperture of the door adjacent the latch edge of the door. The hole is for passing wires from the hinge edge to a device such as an... | 10/30/2001 |
| 6299391 | Boring tool assembly A boring tool assembly is provided and has a cutting tool mounted on one end thereof and permits the boring of a straight hole through a member. The boring tool assembly includes a boring bar having integral guide members disposed thereon that follows beh... | 10/09/2001 |
| 6045304 | High-speed gun drill A gun drill having a reversed taper approximately ten times greater than the conventional drills, or approximately 0.3 mm per 100 mm, between a tip of the cutting edge and a point some distance away therefrom is provided. The gun drills deep holes at high... | 04/04/2000 |
| 5971674 | Deep hole drill bit The drill bit according to the present invention provides an advanced, carbide tipped, coolant feed, two-fluted deep hole drill capable of drilling a wider variety of materials deeper and faster than presently known drills of similar construction. Specifi... | 10/26/1999 |
| 5957630 | Boring tool assembly A boring tool assembly is provided and has a cutting tool mounted on one end thereof and permits the boring of a straight hole through a member. The boring tool assembly includes a boring bar having integral guide members disposed thereon that follows beh... | 09/28/1999 |
| 5820316 | Guide element for a cutting tool Guide element for a cutting tool having a location hole (20) in the tool shank (4) having an internal thread (16, 10), which has a threaded bolt (14) having an external thread that can be screwed into the internal thread (16, 10) and is spring mounted in ... | 10/13/1998 |
| 5816754 | Elongated drill with replaceable cutting inserts A metal cutting drill with replaceable cutting inserts and a length to diameter ratio of four to one or more. Two cutting inserts are positioned in exactly opposed diametric positions, and engage the workpiece in a substantially identical manner to precis... | 10/06/1998 |
| 5584617 | Single flute drill for drilling holes in printed circuit boards and method of drilling holes in a printed circuit board A drill bit for forming holes in a printed circuit board. The drill bit includes a first end including a tip for contacting the material of the circuit board. A second end of the drill bit is attached to apparatus for rotating the drill bit. A cutting edg... | 12/17/1996 |
| 5544985 | Deep bore drilling apparatus with rotatable single tube system A drilling apparatus for penetrating material includes an elongated rotary tool for boring an aperture in a workpiece by turning about a longitudinal axis and for moving along the longitudinal axis relative to the workpiece during a cutting operation. The... | 08/13/1996 |
| 5451126 | Deep boring drill A method and apparatus for producing deep drill holes, particularly in wood and similarly structured materials, in which two drill elements, embodied as hollow shafts with cutting ends formed as cutting elements and concentrically disposed one within the ... | 09/19/1995 |
| 5443585 | Gun drill A cutting edge 18 is provided on the end of a cutter tip 12 on a gun drill body 1. The cutting edge 18 has: a radially inner region providing a convex curved cutting edge portion 23, a radially outer region providing a straight cutting edge portion 19 and... | 08/22/1995 |
| 5425604 | Drilling tool A drilling tool has a drilling crown (12) removably arranged on a shank (10) at its front face, provided with two complementary regions that are mutually separated by chip channels (20) and that have partially circumferential surfaces (48). The drilling t... | 06/20/1995 |
| 5415501 | Chuck Assembly and drill tool for deep hole drills A chuck assembly and drill tool for a deep hole drilling press wherein the shank of the drill is of great length and slidably received within the chuck assembly to various depths such that complete removal of the drill for the purpose of substitution with... | 05/16/1995 |
| 5328304 | Reamer A reamer includes a cutting tip mounted in the circumferential wall of the base body of the cutting head of the reamer, and at least one guide bead located in a groove formed in the base body and extending in the longitudinal direction of the base body. T... | 07/12/1994 |
| 5315904 | Apparatus for cutting inner circumferential surface of thick walled small diameter pipe A device for cutting the inner circumferential surface of a thick-walled small diameter pipe comprising a setting means for inserting a core bar having a cutting blade on one end thereof into a pipe to be processed, a rotating means for rotating said pipe... | 05/31/1994 |
| 5304020 | Cutting tool for making cylindrical bores A cutting tool for making cylindrical bores includes two or More cutting inserts and radially or approximately radially directed blades which leave an uncut core, as well as chip removal devices extending in the axial direction of the tool. The cutting to... | 04/19/1994 |
| 5238335 | Reamer A reamer includes a shank portion and a reamer head fixed to the shank portion. A cutting blade is mounted on the reamer head to project axially forwardly from the front end of the reamer head. A bearing guide pad is mounted on the reamer head circumferen... | 08/24/1993 |
| 5181812 | Gun drill mechanism Guide means are provided enabling a gun drill to be rotatably mounted in a supported bearing structure for operation with reduced bearing failure. The modified guide assembly provides a more effective seal means by reducing entry of chips and lubricant in... | 01/26/1993 |
| 5174691 | High feed rate deep penetration drill A drill construction to overcome the problem of high speed (>5000 rpm), high feed rate (>200 inches/minute) chip removal in deep hole drilling of nonferrous workpieces, comprising: (a) a shank for receiving rotary power, (b) an elongate bit extending from... | 12/29/1992 |
| 5035552 | Twist drill for deep hole drilling A twist drill for deep hole drilling comprises a cutting portion, margins (2) and helical flutes (3) designed for chip removal. The front-end wall (4) of the helical flute (3) comprises two conjugate sections (7, 8). The first section (7) intersecting wit... | 07/30/1991 |
| 5026220 | Device for supplying lubricating-and-cooling agent to cutting tools The herein-proposed device includes a housing (1) provided with a hole (2) adapted to receive an arbor (3) carrying a cutting tool (4), a seal (8) mounted on the housing (1) in the zone of interaction between the cutting tool (4) and a workpiece (6) to be... | 06/25/1991 |
| 5023422 | Method of and apparatus for forming a slot in a workpiece A machine tool produces a tapered slot by moving a tool laterally of the workpiece as well as directly into it. The lateral movement is shortened at the end of each half reciprocation, so as to form the taper. The shortened stroke is achieved by use of el... | 06/11/1991 |
| 4932814 | Portable line boring machine A portable line boring machine has a rotatable boring bar on which a tool bit is mountable. A first drive mechanism rotatably drives one end of the boring bar. A second drive mechanism linearly drives the first drive means and the boring bar along the lon... | 06/12/1990 |
| 4869627 | Guide device for a deep drilling tool A guide device for a deep drilling tool of a deep drilling machine including at least one guide jaw having a guide surface for guiding the elongated shaft of the drilling tool. The guide jaw has an outer surface which extends in a circumferential directio... | 09/26/1989 |
| 4842450 | Method and apparatus for self-adjusting boring bar Method and apparatus for conducting boring of a series of spaced walls on a workpiece using a self-adjusting boring bar. The method comprises: (a) supporting a spindle in a rotationally fixed tubular housing to provide an assembly having an unsupported ex... | 06/27/1989 |
| 4815899 | Tool holder and gun drill or reamer A tool holder for a gun drill or reamer has internal and external cylindrical rear end pilot portions and a radial pilot flange for precisely connecting coaxially with a rotatable and axially moveable power source. A sleeve confined coaxially within the i... | 03/28/1989 |
| 4813824 | Single-lip drilling tool A single-lip solid drilling tool has a one-piece shank with an integral head having a radially or diametrically extending groove for a blade with an eccentric tip. The blade is held in its groove by several clamping screws so that it can be removed for sh... | 03/21/1989 |
| 4726717 | Deep-bore drilling machine A deep-bore drilling machine consists of a deep-bore drilling unit (1) which is driven by rotation and has a deep drill tool (4, 7). The front end (7) of the deep-bore drilling tool (4) is led into the drill bushing (10) at the beginning of the drilling o... | 02/23/1988 |
| 4574439 | Deep boring machine A deep boring machine is described which has a spindle unit (2) with a horizontal spindle shaft (40) for receiving a boring tool (50). The spindle unit is horizontally displaceable on a machine bed (1) and is driven by a spindle drive mechanism (2). The b... | 03/11/1986 |
