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| Number | Title | Issue Date |
| 7201101 | Punch capable of punching an object at four directions A punch includes a jig having four punching regions, each punching region having a pattern hole and a concave embossment; guide columns extended upward from a border of the punching regions on the jig; a base for fixing the jig; a punching member punching and emboss... | 04/10/2007 |
| 7171883 | Punching apparatus and the punching unit thereof A punching apparatus is provided which can of punch a non-circular holes at a predetermined position of a work piece. In the punching apparatus for punching a hole by means of a punch integrated into any one of the moving part of a press working machine or the suppo... | 02/06/2007 |
| 7143675 | Puncher having a double cutter linkage structure A puncher having a double cutter linkage structure includes a driving shaft, a driving plate, a front linking rod, a rear linking rod, a front cutter seat, a rear cutter seat, a front cutter, a rear cutter, and a positioning seat. The driving plate is fixed to the d... | 12/05/2006 |
| 7140288 | Device for shaping a food product A method and cutting device makes incisions in an elongated food product, like a hot dog or sausage, to form a pattern or character after the product is cooked. One form of the cutter includes a hinged housing into which the food product is positioned. The housing i... | 11/28/2006 |
| 6997092 | Cutting apparatus A photo cutting apparatus includes a support, a press, a linkage and a cutting device. The press is movably mounted on the support. The linkage is for pressing the press. The cutting device is arranged between the support and the press for separating photos develope... | 02/14/2006 |
| 6979153 | Deep-grooving insert having stepped cutting edge A deep-grooving chip-forming cutting insert includes a rear mounting portion, a front cutting portion, and a pair of side walls, each side wall extending along the front and rear portions. The front cutting portion includes a front end surface, a top surface, and a ... | 12/27/2005 |
| 6968764 | Blade cleaner for a continuous loop blade on a food slicing machine A cleaning device for a continuous loop band blade food processing machine. A pair of scrapers is positioned on, and seated against, opposite sides of the blade for scraping matter from the blade as it passes between the scrapers. The scrapers are biased against the... | 11/29/2005 |
| 6923100 | Method and apparatus for punching particle board A punch and backer plate combination is disclosed as an example of the present invention. The punch has a concave recess in its extended end. The punch may be round or have a rectangular shape in plan view and includes a backer plate having an aligned opening with a... | 08/02/2005 |
| 6918332 | Paper punch device A paper punch device includes an elongate base having a first end, a second end, a top side and a length greater than nine inches. A compartment is positioned within the base. An aperture positioned adjacent to the first end extends through the top side into the com... | 07/19/2005 |
| 6880441 | Precision punch and die design and construction A precision punch and die device for punching holes in a ceramic substrate and method of assembling the device. The device comprises a punch which moves relative to a substrate for punching a hole in the substrate and a die assembly including one or more precision d... | 04/19/2005 |
| 6647845 | Sheet retainer for punching ceramic green sheet and punching apparatus Move, deformation, or damages of a green sheet can be securely prevented by improvement of the material and shape of a green sheet retainer 40 affixed to a punching tool 30 provided with a cutter section 32 for punching a via hole on a ceramic green sheet... | 11/18/2003 |
| 6640603 | Slug-retaining punch press tool A punch and die tool for cutting a slug from a sheet of material that is retained in the opening of the die and does not adhere to or follow the punch on its upward stroke, and a method for retaining a slug in a die, are disclosed. The die is formed with ... | 11/04/2003 |
| 6622601 | Punch unit for punching a hole in a soft metal sheet A punch unit (1) having a punch (2) that is reciprocally driven in a punching operation; and, a die (3) cooperating with the punch (2) in punching a punch hole in a soft metal sheet. A cleaning means scrapes a soft metal sheet's fragment, when the fragmen... | 09/23/2003 |
| 6516696 | Sleeve-type gas spring A sleeve-type gas spring for a turret indexing press has an annular piston operably associated with a punch tool to reciprocate therewith and defining in part an annular gas chamber constructed to receive a gas under pressure. As the punch tool and piston... | 02/11/2003 |
| 6397715 | Slug-retaining punch press tool A punch and die tool for cutting a slug from a sheet of material that is retained in the opening of the die and does not adhere to or follow the punch on its upward stroke, and a method for retaining a slug in a die, are disclosed. The die is formed with ... | 06/04/2002 |
| 6264593 | Punch assembly having a positive punch retraction mechanism for an internal drum imagesetter A punch assembly is provided with a positive retraction mechanism to remove the punch from the media to be punched, thereby preventing binding of the punch in the media. The punch assembly includes a driving mechanism to provide a driving force on the pun... | 07/24/2001 |
| 5444908 | Die for driving pierce nut A die assembly for driving a pierce nut which comprises an annular coining portion provided on the top of a die body, the inner surface of the annular coining portion being continuous with a center aperture of the die body. An annular projection is provid... | 08/29/1995 |
| 5438897 | Stripper arrangement for a punch holder A stripper arrangement for a punch holder which uses an external thread on an end section of the punch holder body to mount either a plastic sleeve press fitted over the external thread or a replaceable steel stripper disc held against the end face of the... | 08/08/1995 |
| 5417133 | Scrap handling in a blanking die A stamping and forming machine positively prevents slug pulling by stripping the slug off of the end of the punch as the punch is being withdrawn from the die opening after a blanking operation. This is accomplished by providing a die insert support in su... | 05/23/1995 |
| 5235885 | Food slicing with continuous cleaning of endless band slicing blades An apparatus and method for slicing food products such as loaves of bread and the like where multiple slices are formed at substantially the same time. A blade cleaning assembly is included for removing slicing debris from band slicing blades after having... | 08/17/1993 |
| 5233895 | Magnetic plate punch actuator A punch station for punching ceramic green sheets comprises a magnet plate and two flux guide plates to form the flux field within which a coil of wire resides and acts to cause the punching movement of a punch. The magnet plate allows the placement of ad... | 08/10/1993 |
| 5172622 | Quick change die cutter A quick change die cutter is provided for permitting interchangeable die elements to be readily inserted and removed without the need for tools. A receiver is provided for carrying the die element which presents a cutting edge thereon, and a lever serves ... | 12/22/1992 |
| 4947720 | Die improvement A punch press die (D) is used to construct rotor laminations (RL) and stator laminations (SL) for a dynamoelectric machine (1). A cavity (17) is formed in the die for a punch (15) to travel through and stamp a slot (5) in a strip (3) of material. Opposing... | 08/14/1990 |
| 4929276 | Multitool punch holder A multitool punch holder (12) having a head member (26) coupled to a punch press ram (16) as the press upper turret plate (22) rotates to bring the punch holder (12) into alignment with the ram (16). The punch holder (12) includes a rotary tool carrier (5... | 05/29/1990 |
| 4892242 | Method and device for separating trimming losses of products formed from sheet A method and device are provided for separating trimming losses from a sheet having a plurality of products formed thereon with star-shaped scraps between the products. In one embodiment, the sheet is placed on a sheet supporting plate. The sheet is posit... | 01/09/1990 |
| 4823661 | Die assembly for punching holes in paper A die assembly for mounting in a die press operates to punch a row of holes in a stack of paper sheets in response to a single press stroke. The die assembly comprises a stationary lower die block having a row of die holes therethrough, one or more lubric... | 04/25/1989 |
| 4770218 | Block stripper and stroke stop for wood splitters A block stripper and stroke limiting is described for use in wood splitters in which a blade is driven by toward and away from a stationary wood support surface. The attachment includes a stop that can be selectively positioned along the splitter frame to... | 09/13/1988 |
| 4543865 | Punch press tool for punching small holes in a strip of sheet metal, and obtaining small punched blanks To permit punching of very small holes from a strip of sheet metal, for example to form a sequence of holes at the margin thereof, or to obtain small punched blanks, having diameters of a few millimeters, for example 1-2 mm or even less, and prevent adhes... | 10/01/1985 |
| 4516450 | Slug-retaining die The die of a punch press is provided with at least one inwardly-extending protrusion elongated in the direction of travel of the punch and positioned to encounter and grip the edge of a punched slug of workpiece material during the punching step and to re... | 05/14/1985 |
| 4515051 | Knife block guide An improved cutting machine including a thin, elongated cutting blade and a guide block with an opening which is shaped to conform to the cross-sectional shape of the elongated cutting blade. The guide block with the defined opening both guides the elonga... | 05/07/1985 |
| 4503738 | Can flange trimming Mechanism for locating preformed, open-mouthed cans for the trimming of their flanges, featuring spring-hinged grooved, flange-holding jaws releasably locating cans for the advancing punch and serving to strip the trim from the punch on its return stroke.... | 03/12/1985 |
| 4320676 | Blanking press having stripping means There is herein described a blanking press in which a punch is moved upwardly under pressure to engage a sheet workpiece and pass through a punch-conforming die plate aperture, the press housing including a product retrieving and operator-viewing opening ... | 03/23/1982 |
| 4257300 | Apparatus for defacing paper money and similar securities There is disclosed an apparatus for punching packages of paper money and other securities for defacing them, the apparatus preventing the sticking together of individual sheets of said packages in order to permit a subsequent mechanical counting of the pu... | 03/24/1981 |
| 4257292 | Piercing units The piercing unit of the present invention is a low-cost device having relatively few parts. The unit comprises a C-frame of cast iron. A hole is drilled from the top of the unit, through the top leg and part way into the lower leg. The bottom of the hole... | 03/24/1981 |
| 4206667 | Tool holding apparatus for presses A press is disclosed having an upper tool which is vertically reciprocated by means of a ram and which is arranged to cooperate with a stationary lower tool in performing work on a workpiece positioned therebetween. The press is characterized by improved ... | 06/10/1980 |
| 4204446 | Work table and hold-down assembly for power hand saw A work table and hold-down assembly for adapting a power hand saw such as a saber saw or jig saw for bench use. The assembly includes a work table which is clamped to the base of the saw, the work table having an opening through which the saw blade passes... | 05/27/1980 |
| 4166403 | Method of making a rigidly supported molded plastics material punch guide and stripper A punch guide and stripper is molded from plastics material to the exact configuration of the punch and is supported and reinforced by a rigid punch receiving member to engage a workpiece around the slug to be punched therefrom and strip the punch from th... | 09/04/1979 |
| 4143569 | Die holder for punch presses A die holder for punch presses for placement in a die set is described. It consists of a die element retained by a frame member supported on pads secured to a die block. A sliding support between the die element and the die block is provided, reinforcing ... | 03/13/1979 |
| 4122736 | Apparatus and method for perforating an article A punch apparatus is provided to punch holes in an article by the use of a die punch. The die punch is forced through the article to be punched. A cleaning device is extended into engagement with the die punch when the die punch is in a position penetrati... | 10/31/1978 |
| 4078462 | Guard for a punch press A transparent sleeve made of impact-resistant plastic is fitted removably around the angularly spaced stripper fingers of a punch press and encloses the spaces between the fingers to prevent parts of the punch from flying out through such spaces in the ev... | 03/14/1978 |
