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A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.
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| Number | Title | Issue Date |
| 7654182 | Coated sheet cutting method and apparatus A discoid lower blade and a discoid upper blade, having a sharper knife angle compared with that of the lower blade, are arranged such that rotational axes thereof are parallel to each other, and portions of the blades overlap one another in the direction that the r... | 02/02/2010 |
| 7377201 | Food processing apparatus for forming strips, slices and cubes A food processing apparatus comprises a first and second shaft and first, second, third and fourth subsets of blades. The first and second subsets of blades are mounted to the first shaft. The blades of the first subset of blades are separated by a first displacemen... | 05/27/2008 |
| 7350387 | Tooling assembly A tooling assembly 10 having a first set of blades which are formed from a first material and a second set of blades which are formed from a second material. More particularly, each carbide blade of each member 62, 64, 66, and 68 is operatively ... | 04/01/2008 |
| 7171884 | Resilient cutting blades and cutting devices Steel reinforced tire fabrics are cut with long rigid bar blades, circular disc blades and disc and anvil blades. All of these blades may have an open relatively deep slot spaced close to the cutting edge that creates a resilient cantilevered spring element that inc... | 02/06/2007 |
| 7143674 | Imaging element having improved crack propagation during conversion The invention relates to an imaging member comprising an imaging layer and a base wherein said base comprises a closed cell foam core sheet and adhered thereto an upper and lower flange sheet, wherein said foam core sheet has a modulus of between 100 and 2758 MPa an... | 12/05/2006 |
| 7134372 | CNC slitter machine A machine for slitting a metal sheet has a number of knife holder assemblies each containing a rotary knife. The knife holder assemblies are mounted for movement along upper and lower rotating shafts which rotate the knives during a slitting operation. The position ... | 11/14/2006 |
| 7086173 | Method and device for calibrating the position of blades of a slitter-winder of a paper or board machine A positioning member (21) of a calibration tool (20) touches a slitting edge (17) of one of the blades (11, 12) to be calibrated of a slitter-winder of a paper or board machine. The tool (20) position is measured by the multipoint ... | 08/08/2006 |
| 7051911 | Apparatus and method for cutting sheet materials A method and apparatus are taught for cutting a sheet material comprising the steps of engaging a first side of the laminated web structure with a crack initiator having a high rake angle, the crack initiator extending from a first cutter base having a low rake angl... | 05/30/2006 |
| 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 |
| 6908020 | Device for separating strips and uses of such a device A device for isolating strips conveyed next to another in lengthwise direction is constituted by at least one separating unit which is extended parallel to a lengthwise axis. Each strip is assigned to one guide and it is inserted and guided by the guides in a plane ... | 06/21/2005 |
| 6874398 | Assembly for cutting a tube A tube cutting assembly has a pair of opposite, rotatable cutting wheels, the outer of which is movable into engagement with a rotatable tube for cutting through the tube wall. Each cutting wheel is provided with a peripheral elastic ring which is configured to enga... | 04/05/2005 |
| 6820784 | Method of cutting a laminated web and reducing delamination A method for cutting a laminated web including the steps of engaging a first side of the laminated web with a crack initiator having a high rake angle, the crack initiator extending from a first cutter base having a low rake angle, the laminated web including at lea... | 11/23/2004 |
| 6732625 | Easily adjusted web slitter A vertically adjustable web slitter is adapted to be supported by a track of a web-slitting machine, and comprising an input port adapted to receive pressurized fluid. Also, a control assembly is adapted to controllably transmit the pressurized fluid into any one of... | 05/11/2004 |
| 6675687 | Tire cutting machine The present invention is a tire cutting machine comprising of a base, a body member, a drive assembly means and a cutting assembly means. The drive assembly means includes a drive power means simultaneously engaged to a pair of front drive wheels and to a... | 01/13/2004 |
| 6631663 | Longitudinal cutting device for a winding machine Known winding machines for winding up continuous strips of material, especially plastic strips, use longitudinal cutting devices comprising a series of upper blades (1) embodied as disk-shaped circular blades, and a series of lower blades (2) embodied as ... | 10/14/2003 |
| 6626096 | Redemption ticket maker A ticket making apparatus includes a feed mechanism and a perforating assembly set within a housing that has an opening through which tickets are dispensed. The perforating assembly perforates a flexible material to define individual tickets. The apparatu... | 09/30/2003 |
| 6564607 | Method and device for cutting a sheet material into strips and a corrugated-fin strips forming apparatus using the device A slitting device including first and second cutting rollers disposed parallel to each other, a first guide roller axially adjacent to the first cutting roller, and a second guide roller axially adjacent to the second cutting roller. The cutting rollers h... | 05/20/2003 |
| 6544105 | Control device to implement a grinding process for a knife shaft The present invention relates to a control device to grind a knife shaft used in a machine intended for cutting sheets of materials into strips, for example sheets of paper, plastic, plates of photosensitive film or any other material having the form of t... | 04/08/2003 |
| 6431037 | Method for engagement cutting an imaging element The present invention is a method of cutting an imaging element. An imaging element is moved through a cutting zone formed by a first cutting blade having a first cutting surface and a first engaging surface and a second cutting blade having a second cutt... | 08/13/2002 |
| 6155152 | Knife holder for a wrapper cutter with a hand guard A knife holder for holding a knife head has a circular wrapper cutter with a blade rotatably mounted in the knife head for engagement with a lower cutter to cause lengthwise separation of a material web. The knife holder has a base body for positioning th... | 12/05/2000 |
| 6010131 | Machine for voiding playing cards A machine (20) for voiding playing cards (30) utilizes a card receptacle (22), a feed apparatus (24), and rotary cutting implements (52, 54) to void playing cards (30) at high speed. The card receptacle (22) stacks the playing cards (30) substantially ver... | 01/04/2000 |
| 6009784 | Device and method for processing ply material A device for processing ply material comprises a stationary device base; first and second transverse slides, first and second working units, and a controller. The first and second transverse slides are simultaneously displaceable in first and second conto... | 01/04/2000 |
| 5979282 | Cutter-infeed apparatus for cutting installations for tapes, in particular magnetic tapes A cutter-infeed apparatus for cutting installations for articles in tape or strip form or film-like articles, circular cutters being fastened on upper and lower shafts and displaced with respect to one another for fixing the cutter infeed, and an electric... | 11/09/1999 |
| 5974922 | High rake knives for color paper slitting The invention relates to a method of slitting photographic print material comprising providing at least one rotary anvil shearing device and at least one rotary knife shearing device wherein said at least one rotary knife has a rake angle of between about... | 11/02/1999 |
| 5911530 | Wheel-driven rotary cutter for printer A method and apparatus for making a linear cut across stationary media in a printer, particularly applicable to rollfeed media.. A self-contained cutter assembly is activated by a printer carriage to move across a media path through a cutting zone and inc... | 06/15/1999 |
| 5761980 | Sheet slitting apparatus The sheet slitting apparatus 1 comprises a disk-like slitting blade 23 and a guiding member 52. The slitting blade 23 rotates along the direction of the sheet feeding, and can move in a direction crossing over the sheet feeding direction. The blade-guides... | 06/09/1998 |
| 5762111 | Roller-type weft thread cutting apparatus A weft cutting apparatus contains a first and a second cutting blade as well as a drive element which is connected to the second cutting blade and can be driven by the cloth directly. The cutting process is thereby synchronized with the speed of the cloth... | 06/09/1998 |
| 5458034 | Apparatus for the transverse cutting of materials of various type, especially in the form of ribbons An apparatus suitable to perform the transverse cutting of various materials, especially, but not exclusively, in the form of ribbons, such as, for instance, aluminium films, paper, fiberglass, plastic films and the like comprises two circular blades, sli... | 10/17/1995 |
| 5423240 | Side-crowned carbide cutting blades and cutting devices Blades with tungsten carbide cutting edges have a surface at a relief angle and a surface at a reverse angle at the periphery. A smooth crown is provided at the intersection of the surfaces. The crown will contact and be included within an overlap of a co... | 06/13/1995 |
| 5423239 | Method for slitting a magnetic tape A method for slitting a continuously running magnetic tape having a magnetic layer formed on the surface of a non-magnetic substance without producing burring. The tape is slit from the front and rear side surfaces of the magnetic tape by a pair of upper ... | 06/13/1995 |
| 5421185 | Apparatus for cutting sheet material into curved segments An apparatus and method are provided for cutting a sheet of material into a plurality of segments having curved edges. A sheet of material is placed on a frame having a horizontal support member. A clamping device secures the sheet and a first mechanism m... | 06/06/1995 |
| 5404780 | Device for holding in position a shaft in contact with which a strip passes and a cutting machine using such a device A device is disclosed for limiting the movements of a shaft in response to the changes in tension in a sheet passing in contact with the shaft, and a cutting machine using such a device. The device comprises at least one cylindrically shaped member (10, 1... | 04/11/1995 |
| 5370026 | Cutting unit for cutting off material in strip form Cutter for material in strip form preferably of paper having a hollow supporting body (20), a blade holder head (12), a shaft (18) equipped with a piston (24) running in the cavity (21) of the supporting body and connected to the blade holder head (12) by... | 12/06/1994 |
| 5365821 | Shoulder knife and cutting device The invention relates to a circular knife (12) as well as a cutting device (11-15) for cutting materials into webs. The cutting device comprises at least one circular knife (12) arranged on a shaft (11) and characterized in that the circular knife is dire... | 11/22/1994 |
| 5285707 | Tire cutting machine A machine for cutting tires into a plurality of elongated strips includes parallel cutting shafts having a plurality of cutting wheels mounted for rotation therewith. The cutting wheels are separated by annular spacers on the cutting shafts. A spacer comb... | 02/15/1994 |
| 5207392 | Cutting mechanism for a document shredder A cutting mechanism (11) for torsion cut has two cutting rollers (12, 13), cutting disks (14, 15), which in each case have a steep cutting face (22) and a sloping back face (23). The transitions between the latter and the roller body are generously fillet... | 05/04/1993 |
| 5165314 | Slitting shingled sheets A method and apparatus for longitudinally slitting a continuously moving shingle of sheets of corrugated paperboard includes a thin, circular rotary slitting blade cooperating with a lower roller assembly which supports the underside of the moving shingle... | 11/24/1992 |
| 5164243 | Magnetic recording medium having a specified edge profile A magnetic recording medium is disclosed, comprising a nonmagnetic support having thereon a magnetic layer on one surface of the nonmagnetic support and a backing layer on the other surface thereof and having a thickness of from 10 to 40 μm, wherein the ... | 11/17/1992 |
| 5144874 | Rotary cutter knife A rotary cutter knife for use in a slotting or slitting head. The cutter knife is an assembly of an arc-shaped holder with one or more cutting elements attached in a manner such that the elements are replaceable and circumferentially adjustable.... | 09/08/1992 |
| 5099733 | Rotary knife Disclosed is a hydraulically fixable flange, which is detachable by expansion and contraction of the internal bore employing hydraulic fluid, in which a hydraulic chamber is provided within the flange body, and a hole for supplying hydraulic fluid, which ... | 03/31/1992 |
