Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 7335832 | Web configuration in acoustic impedance-inducing device A coiled blank defines two elongated parallel bands and a parallel web separating the bands. Opposite ends of the web form diagonally opposed spacer strips arranged such that, when the blank is coiled to bring the ends of the web into juxtaposition, the opposed spac... | 02/26/2008 |
| 7249551 | Gasket cutter with changeable and reversible dies and punches A gasket cutter with changeable and reversible dies and punches including a body having upper and lower opposed arm members, a cylindrical member slidingly engaged within said upper arm member to be raised and lowered by rotation of a handle attached to the cylindri... | 07/31/2007 |
| 7225659 | Punch press die A punch press tool includes a cylindrical punch guide in which a punch body provided with a punch tip for press forming is fit slidably. The punch tip consists of an appropriate number of long forming punch tips each including a press forming portion in the leading ... | 06/05/2007 |
| 7051635 | Ball-lock insert assemblies The invention provides a ball-lock insert assembly adapted to be mounted axially in a mount opening formed in a holder plate having a desired thickness. The ball-lock insert assembly comprises an insert body having an axis and an elongated interior recess extending ... | 05/30/2006 |
| 7024978 | Concentric alignment device for dies and die stripper A punch and die alignment system. A first die includes a first die aperture for receiving a punch. A second die includes a second die aperture for receiving the punch. A first housing includes a first die-receiving passage for receiving at least a portion of the fir... | 04/11/2006 |
| 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 |
| 6912941 | Steel rule die with removable cutting units A steel rule die for cutting cloth and synthetic materials. The cutting die includes a primary substrate and a plurality of cutting units that are removably attachable to the substrate in such a manner that they are easy to adjust, remove and replace. The cutting un... | 07/05/2005 |
| 6311594 | Punch guiding apparatus and stripper plate used therefor A punch guiding apparatus includes: a cylindrical punch guide to be vertically movably supported into a punch holder; a stripper plate is detachably mounted to a forward end portion of the cylindrical punch guide; and a ring-shaped fixture. In the constru... | 11/06/2001 |
| 6152005 | Method of punching a punch guide hole in a blank holder of a punch assembly a punch assembly and a blank holder There is provided a method comprising a process of lightly fitting a distal end portion of a projecting portion 25 of a blank holder 23 into a fitting groove 19 formed in a punch guide 5 so as to be momentarily held therein; and a process of fitting the p... | 11/28/2000 |
| 5964026 | Sheet metal work center and method therefor of fabricating worksheets The invention relates to a sheet metal work center, in which a locking arrangement (15) is placed between the stationary part (9) of the buffer structure (2) and the releaser (13), wherein at least some of the vertical movements of the upper tool (7) and ... | 10/12/1999 |
| 5662016 | Punching die A punching die includes a punch body, a punch guide fitted on the punch body movably up and down with respect to the punch body, a punch head provided on a top portion of the punch body, and a gaseous spring provided between the punch body and the punch g... | 09/02/1997 |
| 5553524 | Stripper device and punch assembly using same A stripper device for a punching tool comprises: a gas cylinder (5) filled with a gas (7) having a cylinder head (27) and a cylinder end (17) attached to a lower end of the cylinder head airtightly; and a piston (9) having a punch head (11) and a piston r... | 09/10/1996 |
| 5460067 | Continuous cycle mechanical architecture able to simultaneously block and cut layers of any non-rigid materials A device for performing the continuous cutting of materials of any form and nature, provided they are stratified and not flexionally rigid. The device generally comprises: fixed and mobile support surfaces; a mobile cutting shear cooperating with a fixed ... | 10/24/1995 |
| 5253559 | Device and system for piercing printed circuits A first tool assembly includes a punch holder assembly and a circuit board clamp and a second tool assembly includes a die for receiving punches held and driven by the punch holder assembly. A circuit board has holes formed by the punches and is clamped b... | 10/19/1993 |
| 5179882 | Waste removing apparatus A waste removing apparatus is used in a punching machine for manufacturing a carton and removes a waste region of a sheet inserted between a movable die and a fixed die by cutting the sheet along a punching line formed thereon. Two molded plates are provi... | 01/19/1993 |
| 4947717 | Punch and die system A punch and die system is disclosed as comprising punch and die templets serving to positionally locate punch and die assemblies relative thereto solely adjacent the region at which punching of a workpiece occurs in combination with guide assemblies for p... | 08/14/1990 |
| 4947718 | Punch and die system A punch and die system is disclosed as comprising punch and die templets serving to positionally locate punch and die assemblies relative thereto solely adjacent the region at which punching of a workpiece occurs in combination with guide assemblies for p... | 08/14/1990 |
| 4947719 | Punch and die system A punch and die system is disclosed as comprising punch and die templets serving to positionally locate punch and die assemblies relative thereto solely adjacent the region at which punching of a workpiece occurs in combination with guide assemblies for p... | 08/14/1990 |
| 4947716 | Punch and die system A punch and die system is disclosed as comprising punch and die templets serving to positionally locate punch and die assemblies relative thereto solely adjacent the region at which punching of a workpiece occurs in combination with guide assemblies for p... | 08/14/1990 |
| 4856393 | Method for die cutting plastic foam A die cutter for cutting a product from a sheet of material. The die cutter has a rule die blade, which defines the shape of the product. The die blade is held by a die holder, which has an opening corresponding to the die blade, so that the cut product c... | 08/15/1989 |
| 4843931 | Punch and die system A punch and die system is disclosed as comprising punch and die templets serving to positionally locate punch and die assemblies relative thereto solely adjacent the region at which punching of a workpiece occurs in combination with guide assemblies for p... | 07/04/1989 |
| 4718161 | Press tool comprising interchangeable working parts A press tool having working parts constituted by stamps and dies and attachment parts such as blank-holders, punch-holders, die-holders, and stay blocks of the tool, wherein interchangeable stamps and dies, formed from metallic removable disc like element... | 01/12/1988 |
| 4316399 | Combined punch retainer and fluid actuated stripper A punch retainer is formed with a bore in its upper portion for releasably securing a punch therein. The lower portion of the punch retainer is formed as a cylinder for a vertically movable stripper piston. The portion of the cylinder above the piston is ... | 02/23/1982 |
| 4063479 | Strand cutting apparatus Process and apparatus for cutting continuous strand or roving, particular strands of mineral material such as glass, into short lengths is disclosed. The apparatus employs a rotatable drum equipped with a large number of radially disposed cutting blades, ... | 12/20/1977 |
| 4048889 | Elastomeric stripper having metal head and stripping plates A stripper for use in a sheet punching machine to clear the punch of the punched article is formed of a rectangular prism of resilient elastomeric material having a metal head plate for connection to the punch and a metal stripping plate to clear the punc... | 09/20/1977 |
| 3977281 | Apparatus for punching holes A hole punching apparatus in which a punch having a center point formed thereon is locked to a punch support by in-line locking pins which can be unlocked to move the punch independently of its support toward the stock to be punched to align the center po... | 08/31/1976 |
| 3945280 | Apparatus for cutting thread A method and apparatus for cutting threads, particularly threads formed of mineral substances such as glass, are disclosed. A rotating drum carrying a plurality of radially extending cutting blades operates in conjunction with a rotating support drum whic... | 03/23/1976 |
