Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7308816 | Forming machine having transmission mechanisms A forming machine includes a first transmission mechanism connected to a cutting mechanism and a conveying clamp mechanism, a drive mechanism for driving the first transmission mechanism; and a second transmission mechanism driven by the drive mechanism for driving ... | 12/18/2007 |
| 7175533 | Method of forming a cold-headed standoff A method of head trimming a fastener blank in a cold-forging process comprises placing a fastener blank into a bore of a punch having an end face; supporting an underside of a head portion of the fastener blank with the punch end face; moving a die having an interna... | 02/13/2007 |
| 7077755 | Method of preparing ultra-fine grain metallic articles and metallic articles prepared thereby An apparatus and method are provided for angularly extruding a workpiece through a die to form blanks and articles having refined grain structure. The die is also used to form the workpiece to a desired shape, such as a cylinder. The angular extrusion method can be ... | 07/18/2006 |
| 6857962 | Blind threaded fastener forming technique A simplified method for producing internally threaded blind fasteners includes cold forming of the thin deformable walls of the fastener into bowed out sections by reverse extrusion to form deep grooves, and subsequent further cold forming to increase the diameter o... | 02/22/2005 |
| 6494652 | Blind rivet and method of making the same Disclosed is a self plugging blind rivet for securing together apertured members, the rivet comprising a tubular shell having a tail end face at one end and a preformed radially enlarged bead at the other end, and a stem that extends through the shell and... | 12/17/2002 |
| 6447399 | Method of forming a tubular member A method of forming a tubular member with longitudinal slots along part of its wall, comprising the steps of: firstly, forming longitudinal zones of weakness along part of the wall of the tubular member, and secondly, expanding the said part of the tubula... | 09/10/2002 |
| 6267684 | Rivets and rivet manufacturing methods The present invention comprises aluminum solid rivets and methods of manufacturing aluminum solid rivets for aircraft and other demanding applications to provide rivets with high strength and excellent driveabiltity while improving the rivets resistance t... | 07/31/2001 |
| 6017274 | Method of forming a fastener In a first embodiment, a method for forming a hardened fastener having a hardened fastener head. Alloys made of cobalt, nickel, chromium, and molybdenum have very high hardnesses while maintaining ductility. Metals conforming to the chemistry of AMS 5844 ... | 01/25/2000 |
| 4366588 | Double blow method and press for producing tubular rivets A double blow method and press for producing tubular rivets is involved with a fixed die, a preparation and a finishing punch and a bore-forming pin. During the first blow the pin is positioned in the die bore in a first position, the preparation punch in... | 01/04/1983 |
| 4296512 | Method for making fasteners A method for making a fastener having a head and a shank from wire or rod consisting essentially of AISI 200 or 300 series stainless steel comprising the following steps: (a) cooling the wire or rod to a temperature of less than about minus 75° C.; (b) d... | 10/27/1981 |
| 4281429 | Method for making fasteners A method for making a fastener having a head and a shank from a slug consisting essentially of an AISI 200 or 300 series stainless steel having an Md30 temperature in the range of about minus 50° C. to about 50° C. comprising the following st... | 08/04/1981 |
| 4136417 | Method and machine for forming a hollow rivet The method and machine for forming a hollow rivet having a head at one end and an axially recessed shank at the other end, by means of placing a blank in a fixed die and performing the extruding operation on one end of the blank followed by a heading oper... | 01/30/1979 |
| 3978538 | Method for making shouldered tubular rivets A method and apparatus for forming shouldered tubular rivets is disclosed in which three forming operations are provided, two of which are performed in a single die station. In the first operation, the head end of the blank is squared and the inner end is... | 09/07/1976 |
| 3975786 | Method of forming a rivet of titanium-columbium alloy A high strength buckable rivet made of an alloy consisting of titanium and columbium, the optimum proportion being about 55% titanium and about 45% columbium. The method of making this rivet includes the steps of cold forming a cylindrical blank so as to ... | 08/24/1976 |
