Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7174821 | Punch for a braced die A punch for attachment to a brace of a braced die has a hollow cutting nose with a leading end for cutting a material to be punched and a trailing end opposite the leading end. A shaft extends from the trailing end of the nose and is sized to pass through an apertur... | 02/13/2007 |
| 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 |
| 6925922 | Apparatus for removing tiebars after molding of semiconductor chip An apparatus for removing tiebars of a lead frame after one or more semiconductor components have been encapsulated in a resin to form a package body includes first and second removing stations. The second removing station is provided for removing scraps that may be... | 08/09/2005 |
| 6889588 | Compensating blister die cutter apparatus A compensating blister die cutter apparatus is disclosed which has the purpose of cutting a sheet of blisters which have been formed on a sheet of plastic material in individual blisters which are generally symmetrical in configuration. The apparatus includes at lea... | 05/10/2005 |
| 6868764 | Material cutting and feeding machine A material cutting and feeding machine for cutting and perforating a roll of paper. The material cutting and feeding machine includes a generally rectangular frame. A material feeding roller is mounted to the frame. The feeding roller is adapted to hold a roll of pa... | 03/22/2005 |
| 6860012 | Method for forming elastic ventilation cushion A method for forming elastic ventilation cushion comprises the steps of arranging a plurality of needle seats at two banks, an upper bank and a lower bank, and a straight gap is formed between the upper bank and the lower bank, wherein one edge of each needle seat n... | 03/01/2005 |
| 6758120 | Blind cut down apparatus An apparatus for trimming the width of blinds of the type having a headrail, and a bottom rail and blind slats, and having a support body with a headrail opening, and a bottom rail opening, and a blind slat opening the blind components being insertable into their op... | 07/06/2004 |
| 6718855 | Rotary label die cutter A rotary die cutter for cutting a series of irregular-shaped blanks from a continuous web. The rotary die cutter includes a male die cylinder that has a series of die cavities formed along its outer circumference. Each of the die cavities includes a surrounding cutt... | 04/13/2004 |
| 6691598 | Lightweight dimensionally stable steel rule die A lightweight, dimensionally stable steel rule die for cutting and scoring carton blanks having a die board containing cutting and scoring rules which is formed of a laminated plastic construction adapted to register and coact with a steel counterplate ov... | 02/17/2004 |
| 6533325 | Integral card and method of making A business form incorporates an improved multi-layer integral card utilizing microperforations to form ties which retain the card during machine handling and printing. The method employs a flexible steel die or engraved die cylinder with microperforations... | 03/18/2003 |
| 6464121 | Specialized tool adapted for a process for manufacture and interconnection between adjoining printed wiring boards A tool for separating a common printed wiring board substrate into a plurality of substrates where, prior to separation, the plurality of substrates are connected by at least one circuit connector. The purpose of the tool is to apply pressure along a divi... | 10/15/2002 |
| 6431491 | Perforator for weblike materials with means for modifying the interval between consecutive lines of perforations The perforating unit comprises: a support (23) with at leat two fixed counterblades (25A, 25B); a first roller (27) revolving about its own axis and carrying a first series of rotary blades (29) acting in combination with a first (25A) one of said fixed c... | 08/13/2002 |
| 6343533 | Cutter, method of making the same and apparatus for shaping and cutting tape end A cutter for cutting a laminated sheet such as tapes or the like or for shaping or chamfering tape end into various rounded configurations, a method of making such a cutter and an apparatus for shaping and cutting tape end. A sheet metal is worked to form... | 02/05/2002 |
| 6233809 | Flexible cutting knives and method of mounting cutting knife cavities with mounting braces on a non metallic mounting board A cutting knife assembly has a baseboard with a generally planar surface. A cutting knife is detachably connected to the baseboard. The cutting knife extends in a perpendicular direction to the baseboard. The cutting knife circumscribes a knife cavity on ... | 05/22/2001 |
| 6212984 | Rotary label die cutter A rotary die cutter for cutting a series of irregular-shaped blanks from a continuous web. The rotary die cutter includes a male die cylinder that has a series of die cavities formed along its outer circumference. Each of the die cavities includes a surro... | 04/10/2001 |
| 6116132 | Cutter, method of making the same and apparatus for shaping and cutting tape end A cutter for cutting a laminated sheet such as tapes or the like or for shaping or chamfering tape end into various rounded configurations, a method of making such a cutter and an apparatus for shaping and cutting tape end. A sheet metal is worked to form... | 09/12/2000 |
| 6109154 | Sheet-cutter having motor driven push cutter A sheet cutter cuts a portion of a continuous sheet, discharged through a gap between a pair of moving and stationary knives respectively having arc-shaped and straight knife edges. A motor rotates a pair of rotatable, identical gear wheels engaged with e... | 08/29/2000 |
| 6105480 | Apparatus for separating ribbon-coated multicore optical fiber An apparatus for separating a ribbon-coated multicore optical fiber at a plurality of positions at once, wherein the ribbon-coated multicore optical fiber includes a number of single-core fibers arranged in parallel. This apparatus comprises a first cutti... | 08/22/2000 |
| 5875699 | Cutting die mounting system An alignment and mounting system for steel rule cutting dies and the like includes multiple elements: registration pins for ensuring proper disposition of the cutting dies on the cutting drum relative to the bolt pattern of the cutting drum, alignment gui... | 03/02/1999 |
| 5848621 | Cutter for steel strapping tool A cutter implement, for use within a cutting tool in connection with the securing of a tensioned steel strap about a package wherein a pair of vertically overlapped end portions of the tensioned steel strap are supported upon an anvil, is provided with a ... | 12/15/1998 |
| 5787777 | Cutting device for trimming printed paper packages in a packaging machine A cutting device for trimming printed paper packages in a packaging machine. A cutting unit includes an upper part and a lower part which are movable relative to each other when a paper package passes between them. The package originates from paper materi... | 08/04/1998 |
| 5641551 | Multi-purpose rotary slit scorer and products formed thereby Toothed perforating rules upon the die roll of the rotary die apparatus form tear strips, punchouts, reverse fold lines, nicking connections and similar weakened or frangible sections in corrugated paperboard sheets during passage thereof through the nip ... | 06/24/1997 |
| 5584218 | Cutter having a pair of cooperating flexible blades providing a pair of moving point cutting edges A cutting device having blades with V-shaped cutting edges and shaped to cause the blade centers to deviate from a vertical plane. One blade is reciprocated. The outer ends of each blade have sliding projections engaging marginal portions of outer surface... | 12/17/1996 |
| 5537905 | Nicked cutting rule A perforating rule for perforating paper and plastic including a shank portion having substantially planar side surfaces parallel to a central plane therebetween, a cutting portion having a V-shaped cross-section with the narrower end of the V providing a... | 07/23/1996 |
| 5370028 | Strip steel punching and indenting tool A strip steel punching and indenting tool (15) and a method for preparing this type of tool wherein the tool, arranged between a ram (12) and an anvil (14) of a punching machine (10), comprises a supporting plate (16) with slots (18) extending from the lo... | 12/06/1994 |
| 5347699 | Partial cut shearing device A device for partially shearing single or multiple sheets of material comprising a base having a recess and a lower blade fixed in the recess. A pair of movable blades having opposed ends are pivotally attached to the base at one end. A lost-motion connec... | 09/20/1994 |
| 5298010 | Two-part die for producing sheet material incorporating smaller areas defined by elongated slits and means of attachment In one aspect, an article of manufacture constituting a flat planar sheet of material having slits cut therethrough in selected patterns to define the configuration of a subsidiary portion of the flat planar sheet of material, while means of attachment ar... | 03/29/1994 |
| 5235887 | Cutter apparatus A cutter apparatus having a fixed blade in an opening of a paper feeding guide; and a movable blade having a cutting portion which enters into the opening. A paper holding plate is provided on the movable blade slidably in the cutting direction. The dista... | 08/17/1993 |
| 5232430 | Apparatus for piercing slits in plastic sheet material A piercing blade for perforating slits in a continuous tubular web of thermo-plastic material is shown. The blade is used in a machine to form individual bags from the tube by heat sealing the bottom and perforating the top of the next bag. The piercing t... | 08/03/1993 |
| 5001956 | Knife for perforating plastic sheet material A device for perforating a tubular film of plastic material flattened to form a roll of pre-formed bags for individual separation from the roll, has a perforating knife with a plurality of pointed teeth spaced along the bottom edge thereof disposed for re... | 03/26/1991 |
| 4998430 | Manufacture of rotor lamination for a dynamoelectric machine In a progressive die for punch press operations in which a strip of material is fed into the press and sequential operations are conducted on the strip including the separation of parts from the strip. The die is provided with a construction which forms a... | 03/12/1991 |
| 4951540 | Shingle ridge cap cutter A shingle ridge cap cutter utilized for cutting uniform sections from roof shingles comprising a frame along which a shingle is guided to a manually operated cutter that comprises spaced blades that are moved to sever a section of the shingle. The cutter ... | 08/28/1990 |
| 4941381 | Portable business card slit cutter A portable business card slit cutter includes a base member and cutting member which is rotatably affixed to the base member. A pair of triangular shaped cutting blades are affixed to the cutting member and a corresponding pair of receiving slits are posi... | 07/17/1990 |
| 4879932 | Manually operable paper slitting device and method A manually operable paper slitting device has upper and lower platens normally biased apart from one another. The upper platen has diagonally extending and spaced parallel slitting blades extending downwardly therefrom for cooperation with spaced compleme... | 11/14/1989 |
| 4852442 | Self-sharpening perforator for plastic film A self-sharpening perforating punch head for perforating a web of plastic film is formed of one or more plates of a semirigid plastic resin, e.g. acetal homopolymer. The head has a row of tapered and beveled teeth which form a cutting edge at the back pla... | 08/01/1989 |
| 4768411 | Easy-open bag and apparatus and method for making same A bag and a method and apparatus for forming an easy open bag in a vertical form-fill-seal process wherein a bag is formed from a sheet of thermoplastic film and a heat seal betwee bags as they are filled serves as the top closure for the lower bag and a ... | 09/06/1988 |
| 4762041 | Dispensing mechanism for separating coupons from a connected ribbon of coupons A mechanism for feeding a ribbon having discrete three dimensional objects includes a specially formed finger which fits through a U-shaped opening from the back side of the ribbon and incrementally drives the ribbon into position where it is severed alon... | 08/09/1988 |
| 4732068 | Cutting device A cutting device is provided for use with a printer having a plurality of movable blades which are disposed in side-by-side relationship and driven in a direction perpendicular to the length of the blade. A plurality of solenoids are provided for driving ... | 03/22/1988 |
| 4581008 | Apparatus for forming a perforated tear-line in a blank for a parallelepipedic package An apparatus which produces a precisely shaped and positioned perforated line in a blank for a parallelepipedic package has a blade and a roller for pressing the blank against the blade. The blade is stationary relative to the packaging blank and provides... | 04/08/1986 |
| 4452598 | Apparatus for cutting printing plates Apparatus for cutting printing plates, comprises a cutting press with relatively movable platens one of which carries a form cutting tool for severing or partially severing from a processed sheet of flexible material a central image-bearing portion for us... | 06/05/1984 |
