Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7275326 | Portable electric cutting apparatus A portable electric cutting apparatus includes a housing for housing an electric motor for rotating a saw blade a fan provided in the housing and driven by the electric motor, a saw cover attached to the housing and having a saw blade housing part having a shape to ... | 10/02/2007 |
| 7237586 | Rotatable cutting tool There is provided a rotatable cutting tool for supporting at least one knife in at least two alternate angular cutting configurations. The cutting tool includes a body that defines at least one cavity extending generally in a longitudinal direction of the body. Each... | 07/03/2007 |
| 7000777 | Vibratory separator screens Screen assemblies for a vibratory separator, the screen assemblies in certain aspects having at least two screening members, the at least two screening members connected by sewing material, and methods for making such screen assemblies. ... | 02/21/2006 |
| 6932883 | Screens for vibratory separators A method for making a screen assembly for a vibratory separator, the method including, in at least certain aspects, gluing together with glue at least two layers of fine screening material, allowing the glue to set, preheating the glued together at least two layers ... | 08/23/2005 |
| 6712105 | Method and apparatus for planing an article of wood A method and apparatus for planing an article of wood. Specifically disclosed is a cutting head adapted for rotation about an axis, and at least one elongate knife including a linear cutting edge for cutting the wood. The cutting edge terminates at opposite ends of ... | 03/30/2004 |
| 6564815 | Air gap magnetic mobile robot A mobile robot for cleaning, stripping, reconditioning or refurbishing a coating on a metal work piece has a remote controlled power module for locomotion and a working head for removing the coating. The robot is held on the metal work piece by magnets mo... | 05/20/2003 |
| 6390159 | Drill press and saw table An apparatus for automatically cutting a drawer slide groove and drilling a drawer-securing pin hole in a drawer with a bottom with a number of edges extending downwardly from the bottom, and a rear wall. The apparatus includes a support, the drawer resti... | 05/21/2002 |
| 6058992 | Method and apparatus for profiling a log A method and apparatus for profiling a log. In a profiler having first and second knives disposed on a rotating disc, a mounting member is adapted to mountably receive both the first and second knives so that each blade has a point on its cutting edge tha... | 05/09/2000 |
| 6021828 | Trim saw with waste removal blades A trim saw is mounted in conjunction with a hogger, or device for reducing scrap to particles, or saw dust. The hogger is made up of a any desired number of units that will reduce scrap to sawdust. Each unit has a pair of oscillator plates that hold a pai... | 02/08/2000 |
| 5316061 | Shims for dado cutter set Dado shims that are disks of substantially incompressible, flexible, color coded plastic sheet material of uniform predetermined thicknesses having a central arbor hole and a radial slot narrower in width than the arbor hole diameter so that each shim is ... | 05/31/1994 |
| 5309962 | Multiple saw blade adjustable dado cutter assembly including a cam assembly and nestable dado blades A multiple saw blade adjustable dado cutter assembly. The cutter can be used with a table saw or a radial arm saw, for example, to make dado cuts in board lumber. A pair of cooperating cams, each connected to a saw blade, can be adjusted to make a dado cu... | 05/10/1994 |
| 4840207 | Apparatus for making wooden I-beams A complete production line of a wood I-beam manufacturing apparatus and the method of manufacture is disclosed wherein generally identical chord members are simultaneously formed by cutting of a wooden stock material into the chord members and simultaneou... | 06/20/1989 |
| 4279280 | Interchangeable dado shaft assembly for circular saws An auxiliary dado shaft to support a plurality of rotary saw blades in a laminated pack for cutting wide grooves and dados, is provided with a central bore for receiving a through bolt for simultaneous securement of the blades together and engagement of a... | 07/21/1981 |
| 3986259 | Rotary bark hack This invention relates to an improved portable powered tool for removing bark from living pine trees preparatory to inducing oleoresin flow by known chemical means. This tool utilizes a lightweight, chainsaw-type engine to power a specially designed set o... | 10/19/1976 |
