Bizarre Patents
A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.
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| Number | Title | Issue Date |
| 7387479 | Quick-release tool holder for rotary tools An apparatus for changing cutting tool bits rapidly on milling machines, lathes, drills and other types of rotary power tools includes a first portion that is attached to the rotary power tool and retained thereto. A second portion includes the tool bit attached the... | 06/17/2008 |
| 7310880 | Saber saw with an adjusting device for a saber saw guide A motor-driven saber saw includes a housing (4), having a neck (8) which serves as a handle and has a tool opening (6), a guide device (22) for guiding the saber saw (2) on a workpiece and releasably connectable to the housing (... | 12/25/2007 |
| 7287449 | Screwdriver with removable rod Screwing tool (1) having a grip (2) and a shank (3), which is received removably in a cavity (4) open toward an end of the grip (2) and which at its free end has an actuating portion (5). The shank (3) is retained in ... | 10/30/2007 |
| 7278640 | Quick-connect chuck mechanism A chuck is provided for retaining the shank of a tool bit or accessory, having a fixed diameter, inserted in a central channel at a distal end of the chuck. At least one torsion spring is mounted axially within a housing and has an inner dimension and shape comparab... | 10/09/2007 |
| 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 |
| 7207243 | Clutch type screwdriver A screwdriver includes a clutch mechanism, a handle mounted on a first end of the clutch mechanism, and a replaceable screwdriver tip mounted on a second end of the clutch mechanism. The clutch mechanism includes a mounting seat, an annular sleeve, a positioning mem... | 04/24/2007 |
| 7114728 | Rapid detached connecting device A rapid detached connecting device comprises a rod body having an engaging portion; the rod body having a hollow body; an engaging block installed within the rod body; the engaging block having a stop block; a buckling unit inserted into the engaging portion for lim... | 10/03/2006 |
| 6568693 | Ratcheting hand held tool A hand held tool is provided with a handle, a ratcheting mechanism connected to the handle, and a quick release bit coupling device connected to the ratcheting mechanism.... | 05/27/2003 |
| 6474656 | Power drivable chuck A power drivable chuck 30 includes a body 72 which is formed with a shank-receiving opening 34 having a triangular cross section. A spring 104 is located about a forward section 78 of the body 72, and is captured within a chamber 102 between a base surfac... | 11/05/2002 |
| 6179303 | Device for accomodating a tool or a support element in a machine tool or a spindle A device for receiving a tool or support element in a machine tool or spindle has a tool carrier receiving member arranged in a machine tool or spindle and a tool carrier having a tool receiving member for a tool as well as a clamping device for securing ... | 01/30/2001 |
| 6059493 | Manual machine tool with tool holder and appropriate tool The hand-held machine tool has a tool holder (20) provided with a receptacle (19) into which a shaft portion (15) of a tool (16) is axially insertable. The tool holder (20) has a longitudinal axis (11) and includes a guide device (18) for axially guiding ... | 05/09/2000 |
| 5342154 | Hand machine tool with tool holder A hand machine tool has a rotatable spindle having a longitudinal axis and provided with a cone and an annular surface extending at an angle to the longitudinal axis, a tool holder having a conical opening which surrounds the cone, torque-transmitting ele... | 08/30/1994 |
| 5167476 | Collet and tool assembly A collet and tool assembly for rotatable tools such as drills and taps in which the collet and tool each include mating: a) stops for limiting entrance of the tool into the holder; b) matching detents for producing an audible click when the tool is properly pl... | 12/01/1992 |
| 4976585 | System for the rapid balancing of revolving shafts, particularly suitable for gas turbines A system for the rapid balancing of revolving shafts, in particular, the revolving shaft of a gas turbine. The system comprises two mutually adjacent bores provided in the stator of the turbine, which can be closed by relevant plugs, and which are collima... | 12/11/1990 |
| 4858939 | Bit retention and release mechanism A mechanism is disclosed for selectively releasing or retaining a bit in a rotary power tool. The mechanism includes a tool housing having an interior bore. A spindle, mateable with the bit, is mounted within the bore. A tubular release sleeve is also mou... | 08/22/1989 |
| 4820154 | Dental instrument with a tool for treating the teeth A dental instrument employs a tool having an upper portion for use in contacting teeth and a lower portion defining a shank with a lower end, a hollow elongated gripping holder having an opening at one end, a device in the holder communicating with the op... | 04/11/1989 |
| 4692073 | Handle adapter and chuck apparatus for power bits Handle adapter and chuck apparatus for a power bit includes a quick release chuck having a spindle with a longitudinally extending bore in the spindle adapted to receive the shank of the power bit. A radially extending bore extends through the spindle and... | 09/08/1987 |
| 4528753 | Reciprocating saw holder and housing In a motor-driven hand-held saw, the end of the reciprocating rod is clamped with the shaft of the saw blade in a locking sleeve which is displaced between a locked and released position along the elongation of the reciprocating rod and is operated from o... | 07/16/1985 |
| 4378053 | Tool holder A tool holder has a rotatable drive sleeve adapted to receive therein a tool and having a pair of diametrically opposed slots disposed axially along part of its length. A key extends inwardly into each slot and is movable through its sot for retaining and... | 03/29/1983 |
