Bizarre Patents
Ballistic resistant body covering
A ballistic resistant body covering for protecting the torso, groin and neck area from ballistic missiles.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6110047 | Mold for forming a screw with an auger tip A mold for forming an auger tip on a screw is disclosed. The mold has a pair of symmetrical secondary molds each has a base mold (50), a first mold (30) detachably received in the base mold (50) and a second mold (40) detachably received in the first mold... | 08/29/2000 |
| 5980390 | Die for self drilling screws Improved die for use in the manufacture of self drilling screws comprising a forwardly disposed work face provided with cavity for forming the point and flute section of the screw, a recess proximate to the cavity for receiving a portion of the flash mate... | 11/09/1999 |
| 5014540 | Jig assembly An improved jig assembly for a die in the form of a supporting body member having a cavity receiving a die and wedge secured against vertical, back-and-forth and sideways movements with respect to the body member.... | 05/14/1991 |
| 4677703 | Dies for forming drilling screws Dies for manufacturing drilling screws and drill sections thereof comprise respectively a cavity formed by all flat faces, two straight longitudinal parallel side edges and two straight oblique front edges formed at the same height as the side edges on th... | 07/07/1987 |
| 4355430 | Pointing machine A machine for producing points on the pilot end of a rotary fastener, the machine comprising a rotating dial for supporting an array of blank fasteners above a pair of dies. The blank fasteners are sequentially fed between the dies for pointing thereof. T... | 10/26/1982 |
| 4301563 | Method for roll pointing a threaded screw A method for making a pointed, threaded fastener by threading, tapering and pointing in thread rolling equipment a screw blank having a cavity extending longitudinally into the blank from the end of the shank.... | 11/24/1981 |
| 4184217 | Pinch-pointing machine A pinch-pointing machine for forming pilot ends with screws or like fastening devices which comprises a pair of die-heads adapted to move toward and away with respect to each other, a pair of forging dies mounted respectively to the pair of die-heads so a... | 01/22/1980 |
| 4150451 | Die holder assembly An easily assembled and disassembled die holder assembly of the wedge locking type is provided which tightly clamps a punch die in its pocket. A die-engaging wedge of the assembly has an angular protrusion bearing on a wall of a corresponding groove in a ... | 04/24/1979 |
| 4149287 | Method and apparatus for pinch pointing screw blanks A machine for producing points on the pilot end of a rotary fastener, the machine comprising a rotating dial for supporting an array of blank fasteners above a pair of dies. The blank fasteners are sequentially fed between the dies for pointing thereof. T... | 04/17/1979 |
| 4138754 | Apparatus for producing drill screws The method includes positioning a plurality of rotary milling saw stations about a path of travel for successsive screw blanks. Two longitudinally overlapping fluting cuts are made on each side of each blank to configure a drilling point. The blanks are r... | 02/13/1979 |
| 4136597 | Drill screw and die for producing same A drill screw is produced by a pinch pointing die comprising a pair of substantially identical drill point forming portions each of which includes a half conical recess, a half cylindrical recess and a half truncated conical recess. The drill screw thus p... | 01/30/1979 |
| 4071918 | Method of producing drill screws The method includes positioning a plurality of rotary milling saw stations about a path of travel for successive screw blanks. Two longitudinally overlapping fluting cuts are made on each side of each blank to configure a drilling point. The blanks are ro... | 02/07/1978 |
| 4069530 | Apparatus for chamfering, pointing or the like of workpieces having a head or shoulder An arrangement for chamfering or pointing of cylindrical workpieces having a head or shoulder, in which a rotary table is coaxial with a cutting tool, and has holding units for receiving workpieces and spindles. The holding units have elements with axes p... | 01/24/1978 |
| 3992740 | Screw blank receiving and orienting collet A collet-type device for orienting a screw blank relative to wings previously formed on the shank of the blank so that subsequent operations, such as the formation of cutting edges and flutes, can be performed on the shank between the wings. Blank rotatin... | 11/23/1976 |
| 3968533 | Fastener manufacturing apparatus A threaded fastener of the self-tapping type is described having the conventional head, shank, and pilot end. The shank includes a helically wound thread member impregnated with a carbide or other, harder substance than the metal from which the fastener i... | 07/13/1976 |
