Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 7584971 | Workpiece clamping system A workpiece clamping system with a machine spindle and a clamping chuck has a bayonet lock with projections. The bayonet lock is closed by insertion and turning. The bayonet lock can be clamped or locked, whereby parts of the projections are movable and exert a lock... | 09/08/2009 |
| 7438139 | Tool retention apparatus and method A tool assembly (10), for example a hydraulic or pneumatic hammer assembly, includes a housing (11) defining a chamber (16), a removable reciprocating work tool (20) arranged in the chamber, and a tool retention member (80) having ... | 10/21/2008 |
| 7380612 | Electric power tool An electric power tool is provided which prevents malfunction with excellent operability even when one operation mode among various modes is selectable. In a gear case of a housing, there are provided a clutch switching groove which engages with a connecting project... | 06/03/2008 |
| 7338419 | Tool coupler for connecting tool heads, such as drills, reamers, millers, turn-cutters, dies, and rams, to a tool holder A tool coupler for connecting tool heads, such as drills, reamers, millers, turn-cutters, dies, and rams, to a tool holder. The tool coupler has a hollow shaft, a ring-shaped collar, and a gripper groove, in which gripper groove are disposed two diametrically opposi... | 03/04/2008 |
| 7326198 | Remote release instrument holder for surgical use An instrument holder (10) for surgical use has a remote locking mechanism (12) and is elongated having a proximal end (14) and a distal end (16). The holder (10) has an elongated shank (20), a ring (22), a locking com... | 02/05/2008 |
| 7258515 | Tool holding fixture and insert tool The invention is based on a tool holder for a power tool (i0), in particular for a hand-guided power angle grinder, having a slaving device (12) by way of which an inserted tool (14), which has a disklike hub (64), can be operatively conn... | 08/21/2007 |
| 7229078 | Hollow small diameter tool holder for surgical use A surgical tool holder comprises a shank having first driveable end and second coupling end, the second end comprising a coupling device having interfaces for mating with corresponding structures on the inside of a hollow surgical tool, a first interface mating with... | 06/12/2007 |
| 7210212 | Bayonet collet pickup tool for agile fixturing A bayonet collet pickup tool includes a collet chuck having a collet portion including a bore disposed therein. A collet is held in the bore and is operable therein. A bayonet cap is mounted to an outer surface of the collet chuck proximate the bore. The bayonet cap... | 05/01/2007 |
| 7090678 | Positioning instrument for inserting an extension shell The invention relates to a positioning instrument (1) for inserting an extension shell (2) into a human or animal bone, especially a pelvic bone. Said instrument comprises a fixing device (18) for fixing the extension shell (2) to the pos... | 08/15/2006 |
| 7004692 | Rotary cutting tool A rotary cutting tool has a cutting head, a screw member and a tool shank. The cutting head has an axially directed through bore with locking wings protruding from the bore surface. Each locking wing having a sloping locking surface and stopper with a stop surface. ... | 02/28/2006 |
| 6963792 | Surgical method A teleoperator system with telepresence is shown which includes right and left hand controllers (72R and 72L) for control of right and left manipulators (24R and 24L) through use of a servomechanism that includes computer. The teleoperato... | 11/08/2005 |
| 6942437 | Milling cutting tool having cutter body mated to an adapter A rotary milling cutter has a cutter body mountable on an adapter. A first side of the adapter is provided with circumferentially arranged drive pins centered about a centrally positioned, conically tapered male locating member. A first side of the cutter body is pr... | 09/13/2005 |
| 6935636 | Arrangement for the detachable mounting of a rotatable tool on a drive shaft Rotatable tool coupled to support body, and drive shaft detachably mounted to rotatable tool, such that rotatable tool is drivable in a working direction, in which support body includes an inlet opening defined by at least three eccentric segments and drive shaft in... | 08/30/2005 |
| 6908264 | Quick change drill bit A quick-change core drill includes an adapter and a generally tubular drill barrel. The adapter comprises a first end adapted to be removably connected to a drill spindle and a second end adapted to be removably connected to the drill barrel. The drill barrel includ... | 06/21/2005 |
| 6854742 | Tool driver A tool driver including a shaft having a longitudinal axis and opposite ends. A first partial boss is located at one of the shaft ends, a tool collet at the other of these shaft ends, and a second partial boss having a bore extending therethrough. The second partial... | 02/15/2005 |
| 6786491 | Quick tool coupler adapted to a sliding hammer The present disclosure relates to a quick tool coupler adapted to a sliding hammer allowing quick change of its tools. ... | 09/07/2004 |
| 6704987 | Tool used in combination with cable security device The present invention is a terminator tool used in combination with a cable security terminator for installing or removing the cable security terminator. The terminator tool includes a handle, a shaft, a retaining pin and a spring member. The shaft is hollow and ext... | 03/16/2004 |
| 6543204 | Screw-tightening spindle fitted with a removable chuck A screw-tightening spindle comprising a drive sleeve associated with a chuck comprising a cylindrical support member fitted with moving jaws, the cylindrical support member being provided externally with at least one stud extending radially outwards, the ... | 04/08/2003 |
| 6276879 | Cutting head for mounting on a tool holder in a self-clamping manner A replaceable cutting head is adapted for co-axial coupling thereof, along a coupling axis, with a tool shank in a self-clamping fashion. Both the cutting head and the tool shank have a mounting portion comprising a centering section and a positioning sec... | 08/21/2001 |
| 6176655 | Drill and a chuck for receiving the drill shank A drill bit having a drill body and a drill shank including a substantially cylindrical guide portion (10) having at least one guide surface (101, 102), and a locking portion (11) projecting radially beyond the guide portion and having locking surfaces (1... | 01/23/2001 |
| 6015411 | Bone excavating apparatus for repairing ligament and a bone tunnel forming method A bone-excavating apparatus comprises a shaft and a drill so sized as to be inserted into an articulation through a skin-cutting portion and removable from the shaft. In a state in which the shaft is installed on the drill, the shaft and the drill have a ... | 01/18/2000 |
| 6000888 | Quick coupler mechanism for power tool bits A pneumatic impact power tool has a tool body with a bit-receiving axial bore in its end surface. A cap is threaded on the end of the tool body and has an end wall spaced from the end surface to define a cavity and a lobed opening in the cavity matably re... | 12/14/1999 |
| 5964555 | Milling tool and cutter head therefor A tool for rotary chip removal machining includes a cutting head, a retention element and a shank. The cutting head and the retention element comprise overlapping hooks for mounting the cutting head in the shank. The cutting head comprises two integral ma... | 10/12/1999 |
| 5868533 | Finishing tool for precision machining of holes Finishing tool for precision machining of holes includes a chuck unit having a driving head and a replaceable cutting element which includes at least one cutting blade and a cylindrical support shaft that is provided with a drive pin projecting from the s... | 02/09/1999 |
| 5597275 | Tool with changeable working tip A tool with changeable working tips has a tool shaft with an attachment end adapted to receive the attachment end of a working tip in freely removable engagement therewith. A sleeve is moved over the engagement of the shaft and working tip to securely hol... | 01/28/1997 |
| 5257557 | Driven tool locking mechanism There is disclosed a direct acting lock mechanism to secure a tool within a driver which is useful for securing open channel sockets used to securing aerospace fasteners in a driver. These sockets have a flatted shank, typically hexagonal in cross section... | 11/02/1993 |
| 5167478 | Tool holder with radial tool change mechanism The present invention is a tool holder which permits lateral insertion and removal of a tool means into and from the holder thereby making it unnecessary to move the machine or work piece to provide excess clearance. The tool holder includes a main body h... | 12/01/1992 |
| 5038435 | Anchor set tool A tool adapted for use with a drill for installing screw anchors in concrete or masonry walls or the like having a sleeve type body, a bit holder slidably located in the body, a drill bit with a handle secured in the bit holder, a coil spring seated on a ... | 08/13/1991 |
| 4976174 | Socket wrench attachment with removable retaining means An attachment to a socket wrench and the like carries a rocker arm in a recess in the body of the attachment. The rocker arm rocks about a shaft inserted transversely of the arm in a pair of apertures in the attachment body. At one end of the arm a compre... | 12/11/1990 |
| 4953640 | Quick detach bit A quick detach bit apparatus includes a wear sleeve having a chuck threaded thereinto. A bit is mounted within the chuck. The bit and chuck are interconnected by mating, axially extending splines and grooves. The chuck includes a resiliently mounted segme... | 09/04/1990 |
| 4941783 | Drilling device A drilling device is made up of a hollow cylindrical retainer and an annular drill bit. One of the retainer and drill bit has recesses for receiving projections on the other so that the two parts can be detachably connected together. Each recess has a fir... | 07/17/1990 |
| 4907663 | Drilling tool A drilling tool is made up of a holder and a drilling member detachably connected together. One of the holder and the drilling member telescopes into the other. Resilient tab-like parts on one of the holder and the drill member engages within recesses in ... | 03/13/1990 |
| 4875275 | Novel automatic tool changer A tool changer including male and female flanges for respectively connecting end effectors to robot arms and the like. A male flange assembly having a tapered projection is inserted into a tapered female flange member having a rod aligned along the diamet... | 10/24/1989 |
| 4738130 | Structure for mounting mandrels in tube expanding apparatus A structure for mounting mandrels in a tube expanding apparatus comprising a horizontal mounting plate fixed to the underside of a vertically movable slide and having a plurality of passage holes through which the mandrels suspendingly extend. The structu... | 04/19/1988 |
| 4378212 | Rotary driving apparatus having a collet with a magnetic latching mechanism A rotary driving apparatus having a collet housing defining a passageway which is adapted to receive, engage and rotate a bur having one end thereof which terminates in a notched bur key formed of a magnetizable material having a driving shaft having a fi... | 03/29/1983 |
| 4274774 | Tool-fitting device Tool-fitting device characterized in that a clamp socket is fixed at the bottom of a hole bored in the spindle; a tool-fitting body with a clamp piece at one end is placed over the clamp socket; and through the connection of the clamp socket and the clamp... | 06/23/1981 |
| 4155162 | Dental anchor magazine A dental anchor magazine housing a dental anchor therein is disclosed, where the dental anchor is for anchoring a superstructure to a tooth. The dental anchor includes threaded sections and an L-shaped manipulating end section joined together by frangible... | 05/22/1979 |
| 4052078 | Power transmission collar A hand tool having a motor rotating a drilling bit is made more useful by a power transmission collar. An auxiliary tool, such as a riveter, scheduled for use selectively during intervals between drilling operations, is powered by the electric drill. The ... | 10/04/1977 |
