Bizarre Patents
User-operated amusement apparatus for kicking the user's buttocks
An apparatus including a user-operated and controlled apparatus for self-infliction of repetitive blows to the user's buttocks by a plurality of elongated arms bearing flexible extensions that rotate under the user's control.
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| Number | Title | Issue Date |
| 7360606 | Hand machine tool with a removeable tool holder A hand power tool has a striking element via which a tool (10) in a tool holder (12) can be driven in striking fashion, which the tool holder can be detachably secured—via its body (14)—to a drive part (16) via at least one locking el... | 04/22/2008 |
| 7258349 | Hand power tool A hand power tool selected from the group consisting of a drill hammer and an impact hammer has an exchangeable tool holder, a guide pipe which receives the tool holder at its free end, a locking device arranged on the guide pipe and operative manually for fixing th... | 08/21/2007 |
| 7222862 | Tool holder A tool holder for a power tool, in particular a drilling and/or hammering tool comprising a manually actuable sleeve (40) wherein components of the tool holder are held within the sleeve by a snap ring (100) which snap ring is fitted within the sleeve.... | 05/29/2007 |
| 7214010 | Tool bit holder and hand power tool A tool bit holder for a hand power tool has a tool bit holder body has a receiving bore for a tool bit shaft of a tool bit insert with at least one recess, a locking body snappable into place with the recess of the tool bit shaft and supported radially displaceably ... | 05/08/2007 |
| 7121774 | Clamping device for hexagon bits A clamping device has a hexagon receptacle for receiving hexagon bits inserted in an axial direction of the hexagon receptacle. A radially movable locking element is provided for engaging a locking recess of an inserted hexagon bit. The locking element has a rest po... | 10/17/2006 |
| 7052022 | Chuck for pneumatic hammer A chuck for a pneumatic hammer including an insert and a pin engaged with the insert and one or more other components of the chuck, such as, for example, the nosepiece. The pin is configured to prevent or otherwise limit rotation of the insert relative to the one or... | 05/30/2006 |
| 6854740 | Tool mounting for a hand machine tool The tool mount has a body (12) with means for housing a tool with grooves, whereby the body (12) is equipped with a damping mechanism (14, 16, 18, 20) with which the tool can be clamped in position in the body (12), and an operating eleme... | 02/15/2005 |
| 6820700 | Chuck for a percussion tool A chuck for a rotary-percussion power tool (2) and including a working tool guide (3) for receiving a shank (5) of a working tool, at least one locking member (4) for limiting an axial displacement of the shank (5) within an axial ... | 11/23/2004 |
| 6698537 | Bit retention system A bit retainer for a percussion bit assembly has a bore and upper and lower lips extending into the bore. Multiple slots extend from the lower end of the retainer member to a terminal end disposed intermediate the upper and lower ends, forming multiple ca... | 03/02/2004 |
| 6691799 | Tool holder A tool holder for a power tool, such as a drill hammer, a chisel hammer, and both, includes a striking mechanism for strikingly driving a tool, a base body, a drive part on which the base body is releasably mounted, at least one locking body for releasabl... | 02/17/2004 |
| 6497765 | Multi piece swivel chuck for holding conical shaped work An improved chuck for supporting elongated work pieces having conical end portions, such as single crystal ingots used to fabricate semiconductor wafers, while such. The chuck is typically used in a lathe for positioning and allowing rotation of the work ... | 12/24/2002 |
| 6158527 | Tool of a breaking apparatus An impact breaker has a sleeve which slidably receives an end portion of a tool. The tool is formed over its end portion with a groove extending completely around the end portion of the tool for receiving lubricant for lubricating movement of the tool in ... | 12/12/2000 |
| 6155356 | Percussion tool A hammer holder, provided between a retainer sleeve and a cylinder, slidably holds an intermediate member in an axial direction. A predetermined clearance is maintained between the hammer holder and the retainer sleeve. The hammer holder has a recessed po... | 12/05/2000 |
| 6109620 | Shank adapter A shank adapter for a rock drill, which is used to connect one end of a drill string to a rock drill, has a chuck end (10) made from one piece of material and an opposite, threaded end (16) made from another, different, material. The chuck end and the thr... | 08/29/2000 |
| 5873579 | Protective device for a fluid-operated percussion tool A percussion tool includes a housing part having a frontal end provided with an opening; a tool bit guide supported in alignment with the opening; and a tool bit slidably supported in the tool bit guide and projecting from the housing part through the ope... | 02/23/1999 |
| 5704744 | Arrangement for transmitting torque in a manually operated tool An arrangement for transmitting torque from a chuck (5) in a manually operated tool to a tool bit (1) having an axially extending chuck section (2) insertible into the chuck. The chuck section (2) has axially extending entrainment faces (31) arranged to c... | 01/06/1998 |
| 5522606 | Retainer for a pneumatic tool A retainer for a pneumatic tool and assembly therefor is disclosed. The retainer includes a tool body having an internal surface defining a bore and an external surface having a threaded portion. A retainer cap is used with the tool body and includes an i... | 06/04/1996 |
| 5431235 | Reciprocal chuck for paving breaker A handheld paving breaker includes a reciprocal chuck in a front head and an elastic spring for biasing the chuck toward the fronthead. The chuck can move longitudinally, but is restrained from rotation in the fronthead. A moil mounted in the chuck is bia... | 07/11/1995 |
| 4844482 | Drill chuck The drill chuck has an adapter shaft which is held in the drill chuck nonrotatably with axial motion play and formed for receipt in a tool holder of a hammer drill machine. The hammer action of the adapter shaft is transmittable to the end of a drill held... | 07/04/1989 |
| 4626146 | Tool holder for a drilling or a chiseling device A tool holder for securing a drilling or chiseling tool in a device includes a guide tube for receiving the cylindrically shaped shank of the tool. An adjusting sleeve laterally encloses the guide tube and the sleeve is axially and rotatably displaceable ... | 12/02/1986 |
| 4496164 | Chisel retaining device A chisel retaining device for a power operated percussion tool comprises a one-piece lock shell (20) which surrounds the chisel stem (17) and is pivotably supported on the front end of the tool housing (10). By pivoting the shell (20) about an axis (X) tr... | 01/29/1985 |
| 4491444 | Tool holder device A tool holder for a drill capable of performing only rotary drilling or the combination of rotary and percussive drilling includes a tubular retainer member in which the shank of a tool can be inserted. Locking members mounted in the retainer member fit i... | 01/01/1985 |
| 4231580 | Lost motion tool retainer The invention permits the interchangeability of a variety of shifters on the same housing of a jack hammer. The one piece housing is provided with two appropriately placed lugs with coaxial holes which intersect with the central bore of the housing. By ut... | 11/04/1980 |
| 3994504 | Safety retainer for impact tool device An upper sleeve retainer for use on pneumatically driven rivet cutting devices or the like wherein a cutting chisel fits into an upper sleeve in the barrel of the device and is impacted by a driven piston. The retainer includes a sleeve which is quickly d... | 11/30/1976 |
