Famous Patents
Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7331205 | Rivet monitoring system A rivet monitoring system is provided which has a micro-strain or micro fluid pressure sensor that measures strains or pressures within a tool component. These measured signals are compared to a number of tolerance bands formed about median strain or pressure versus... | 02/19/2008 |
| 7290317 | Blind rivet setting tool A blind rivet setting tool has a construction in which a tubular spring-biased handle gripped by an operator moves axially of the tool. An interlock between a trigger lever and the handle prevents operation of the tool until a rivet held by the tool is properly posi... | 11/06/2007 |
| 7159290 | Manual hydraulic riveter A manual hydraulic riveter includes a body, a lever pivoted to the body for moving a first piston in a fluid cylinder to force hydraulic fluid through a first fluid pipe to a hydraulic cylinder to further move a second piston and an actuating rod carrying a riveting... | 01/09/2007 |
| 7082657 | Automatic suction and repelling device for rivet gun An automatic suction and repelling device for rivet gun, which comprises a body and a handle, and the intake passages thereof are in communication each other; the rear center of the body is furnished with a regulation ring and a used-nail cylinder; the regulation ri... | 08/01/2006 |
| 7065855 | Installation tool for setting anchors The invention provides an installation tool for use with a battery operated drill or a corded electric drill for repetitive installation of caulk-in anchors. The installation tool utilizes the mechanical advantage of a threaded shaft to improve consistency of the ho... | 06/27/2006 |
| 5425164 | Hand-tool system for installing blind fasteners A light-weight and compact hand actuated hydraulic tool for the setting of fasteners having a sleeve and stem is disclosed. The tool comprises a housing, sleeve engaging nose piece connected to a piston which is slidable in the housing, a fluid reservoir,... | 06/20/1995 |
| 4804023 | Hydraulic fluid replenishment device A device for automatically replenishing and exchanging hydraulic fluid in the hydraulic system (such as that of a fastener placing tool 31) has a lower reservoir (29) for holding new hydraulic fluid (39) and an upper reservoir (28) for receiving old hydra... | 02/14/1989 |
| 4750347 | Riveting apparatus The present invention relates to a riveting apparatus for pop-rivets in particular. The riveting apparatus according to the invention is intended to be attached to a tool (1) provided with a rotatable shaft as an accessory thereof, preferably to a drillin... | 06/14/1988 |
| 4587829 | Lightweight, high pressure fastener installation tool and system A piston-cylinder, pull type installation tool operable from a source of high hydraulic pressure for setting large diameter swage type fasteners including a pin and a collar by application of a relative axial force thereto with the tool having a pair of p... | 05/13/1986 |
| 4489471 | Hydraulic pulling tool A hydraulic pulling tool comprising a piston slidable within a cylinder and having a co-axial bore therein. Lateral passages open from the bore through the piston to the leading face thereof and a screw piston is pushed in the bore by threading a screw pu... | 12/25/1984 |
| 4462240 | Handgun, blind rivet installation A hydraulic gun for installing inserts in which the hydraulic mechanism becomes inoperative after the mandrel of the gun travels a predetermined distance. The gun includes a means for adjusting the predetermined distance of mandrel movement.... | 07/31/1984 |
| 4263801 | Hydraulic riveter A hydraulic tool comprising a cylinder which is open at one end with a piston extending partially therein, but having a substantial portion extending outside. A lateral bore through the extending portion accommodates intake and exhaust check valves, but t... | 04/28/1981 |
| 4248077 | Jaw for riveter In a hydraulic riveter wherein an extension on a piston carries a jaw holder containing an annular array of gripping segments with conical outer surfaces slidable on a conical inner surface of the holder, a second piston is slidable in a bore and is opera... | 02/03/1981 |
| 4086802 | Rivet gun Rivet gun having an internal mandrel gripping chuck driven hydraulically by a coaxial piston actuated by a manually operated pump piston.... | 05/02/1978 |
| 4010630 | Hydraulic actuated power tool The hydraulic actuated power tool includes a barrel having an internal, annular bulkhead separating the barrel into two cylinder chambers. A single piston shaft having two pistons thereon operates within the cylinders of the barrel. One of the pistons is ... | 03/08/1977 |
