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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 |
| 7171139 | Sleeve on a drum and changing said sleeve In replacing a sleeve on a printing machine drum, the diameter of the drum is reduced by moving the drum parts toward one another to facilitate removing the sleeve, and/or mounting another sleeve onto the drum, and increasing the drum diameter by moving the drum par... | 01/30/2007 |
| 7007886 | Yarn winding spindle A winding spindle for mounting a plurality of yarn winding tubes, and which is formed by an inner tube and an outer tube surrounding the inner tube. The inner tube connects to a drive shaft. Between the inner tube and the outer tube, a clamping device is arranged, w... | 03/07/2006 |
| 6513751 | Air differential core winding apparatus A plurality of core mounting outer ring members are each rotationally slidably mounted on a corresponding inner ring member having cam surfaces in the outer surface. A rotating drive shaft has radial pistons and rotates the inner ring member by frictional... | 02/04/2003 |
| 6405970 | Alignin core shaft A core shaft having lugs protruding from its outer circumference to grip winding cores such as a paper tube is provided, wherein the movement of the lugs within a shell of the shaft is inhibited thereby to secure concentrical gripping of the winding cores... | 06/18/2002 |
| 6402084 | Air differential core winding apparatus A plurality of core mounting outer ring members are each rotationally slidably mounted on a corresponding inner ring member having cam surfaces in the outer surface. A rotating drive shaft has radial pistons and rotates the inner ring member by frictional... | 06/11/2002 |
| 6299099 | Hydraulic web roll shaft A web material roll rotatable retention assembly, comprising a shaft adapted to be inserted into a web material roll core and having a hydrogel filled chamber is disclosed. A hydrogel pressure applying assembly controllably applies pressure to the hydroge... | 10/09/2001 |
| 6267318 | Differential winding rate core winding apparatus A plurality of core mounting ring members are rotationally slidably mounted on a drive shaft which has a central axial bore for receiving settable pressurized air. The ring members have an annular array of bores with core gripping buttons resiliently urge... | 07/31/2001 |
| 6216977 | Direct-drive coiler For a directly driven coiler for winding rolled strip into coils, a piston/cylinder unit is proposed which can be supplied with pressure medium through rotary feeds arranged on a shaft extension or on a coiler shaft.... | 04/17/2001 |
| 6113025 | Coil holder for at least one coil having a displacing element which moves clamping elements between a clamping position and a releasing position A coil holder for one or several coils arranged one after the other has a main pipe having an outer periphery provided with recesses forming abutment surfaces which are wedge-shaped in an axial direction of the main pipe, a plurality of clamping elements ... | 09/05/2000 |
| 6079662 | Slip shaft assembly having core axial position fixing mechanism An expansible core shaft assembly adapted to retain a set of web spool cores in axially fixed positions while permitting rotational slippage of the web spool cores. The assembly may comprise a shaft defining at least one channel. An expansible bladder is ... | 06/27/2000 |
| 5951023 | Air chuck An air chuck includes a central core having a central portion, an enlarged end flange at a first end, a sloped transition section between the central portion and the enlarged end flange and having an outer inclined surface at a first inclination angle of ... | 09/14/1999 |
| 5803399 | Expandable shaft An expandable shaft comprises: a shaft body having a central axis and an outer cylindrical surface; a fluid passageway extending along the central axis of the shaft body; fluid introducing ports radially outwardly extending and communicating with the flui... | 09/08/1998 |
| 5603463 | Bobbin holder and take-up device equipped with the bobbin holder In a bobbin holder 1 according to the present invention, flexible rings 3a to 3h each comprising a ring-like spring member 30, a pair of solid rings 38 fixed to both side surfaces of the paring member 30, a pair of solid rings 38 fixed to both side surfac... | 02/18/1997 |
| 5518203 | Rewinding shaft of slitting machine A rewinding shaft of a slitting machine includes a rewinding shaft having a hollow interior extending axially, the hollow interior being exposed outside at one end of the rewinding shaft; a plurality of cylinder bores formed in an outer peripheral surface... | 05/21/1996 |
| 5375791 | Hub aligning rotary chuck A rotary chuck for winding magnetic tape aligns the winding hub in both the axial and radial directions relative to the axis of winding rotation. This allows higher winding speeds to be used and produces finished rolls of improved quality. Alignment occur... | 12/27/1994 |
| 5326113 | Single acting core chuck The pneumatically actuated core chuck described and shown has a compression ram movable with respect to a sleeve to force jaws to expand outwardly for engagement of the interior of a core of web material. The jaws are pivotally mounted by means of links e... | 07/05/1994 |
| 5170960 | Expanding winding head for winding rolls According to the invention a winding head (1,40) is realized with expanding sectors (15,41) for the rotation of a tubular center (23,44) around which a tape (26) is wound. The sectors (15,41) are radially forced against the internal surface (22,43) of the... | 12/15/1992 |
| 4993653 | Apparatus for rotatably supporting a hollow, substantially cylindrical winding core, and winding core for supporting a coil of flexible, substantially flat products, especially printed products A rotatably mounted support arrangement comprises two receiving claws having substantially V-shaped grooves. Diametrically opposite these receiving claws there are provided two clamping claws which also comprise substantially V-shaped grooves. A winding c... | 02/19/1991 |
| 4991791 | Expansible reel for tests on filamentary material in particular optical fibres An expansible reel is provided having a plurality of rigid structural mems parallel to each other and to a central axis of the reel, joined at the ends to supports allowing small radial displacements of the members. Between contiguous rigid members there... | 02/12/1991 |
| 4953877 | Fluid actuated chuck A chuck for holding an easily distortable hollow workpiece has a rigid body with axially extending co-extensive, circumferentially spaced, flexible chuck fingers carried on a mounting surface. Each of the fingers has one end axially fixed to the mounting ... | 09/04/1990 |
| 4911376 | Expandable shaft An expandable shaft (B) is disclosed having one or more spaced expansion units (A) which contain swage pins (10) that are expanded radially by wedge members (14). Operators (D, E, F) are used to move the wedge members axially to expand and retract the pin... | 03/27/1990 |
| 4784343 | Actuating system for a bobbin tube gripper An actuating system for a bobbin tube gripper comprises resilient structure held in compression in order to create a force for urging tube gripping elements into engagement with a tube to be gripped. The resilient structure constitutes a body of a porous ... | 11/15/1988 |
| 4763850 | Expandable winding mandrel for retaining a substantially cylindrical yarn holder of a spinning or twisting machine The winding mandrels for expanding the substantially cylindrical thin walled yarn holders of a spinning or winding machine each have a plurality of gripping pieces distributed approximately uniformly about their circumference. The gripping pieces are each... | 08/16/1988 |
| 4705227 | Apparatus for winding-up and unwinding continuously arriving flexible flat structures A substantially ring-shaped or annular winding core serving for the reception of a package of products wound thereupon is frictionally mountable at its substantially cylindrical inner surface upon drivable support wheels and can be again lifted-off such d... | 11/10/1987 |
| 4635870 | Rell hub for a magnetic tape drive A locking hub for the file reel of a magnetic tape drive has three arcuate locking members which move radially outward to engage the annular peripheral center surface of the file reel throughout almost its entire center periphery. Camming surfaces on the ... | 01/13/1987 |
| 4582275 | Collapsible mandrel A collapsible, cantilevered mandrel is disclosed comprising a core rotatable about a longitudinal axis, a tubular shell having a longitudinal slit to permit collapsing of the shell, means for rigidly mounting an arcuate segment of the shell to the core su... | 04/15/1986 |
| 4575015 | Fluid coupling device A thread bobbin holder device having improved sealing between shafts, and consequently less bearing wear. The bobbin holder device is constituted by a bobbin holder body with a bobbin fitted on the outer circumference thereof through a bobbin holder membe... | 03/11/1986 |
| 4465244 | Expanding core chuck For use in a papermaking machine or paper converting mechanism having an arrangement for winding a roll of paper onto a core at high speed, an expanding core chuck for insertion into a roll core which includes a spindle mounted for rotation within a housi... | 08/14/1984 |
| 4458850 | Bobbin holder A bobbin holder comprises a rotatable support device and a holding device mounted on the support device for holding a bobbin inserted thereon. The bobbin holding device comprises a pair of bobbin holding members made of an elastomer. Each bobbin holding m... | 07/10/1984 |
| 4447016 | Rewind apparatus for metal strips A web of metal is unwound from a coil and cut into longitudinal strips which are directed into corresponding loops and then through tension units to a set of strip rewind units each having a horizontal mandrel. Each rewind mandrel has a driven center shaf... | 05/08/1984 |
| 4429838 | Clamping chuck in winding machines An improved clamping chuck for bobbins on thread winding machines wherein a bobbin carrier is removably mounted and held on an expandable chucking spindle by means of a plurality of clamping elements distributed in an annular cylindrical inner space forme... | 02/07/1984 |
| 4422591 | Shaft having means for retaining thereon a reel, material roll or similar article A number of elongated pressure members are located in recesses in the shaft, to be displaced axially and radially outwards by means of pressurized fluid until they engage against the inside of the reel. Within the pressure members an actuating sleeve is m... | 12/27/1983 |
| 4397428 | Tape drive having improved reel hub A magnetic tape drive having an improved actuator for an automatic hub for holding a reel of tape disclosed in which the improved actuator features a stack of pneumatic bladders disposed between congruent reaction surfaces which are rigidly connected to o... | 08/09/1983 |
| 4352470 | Combined payoff and winder for strip rolling mills A machine unit which is capable of functioning alternatively as a payoff and as a winder in the handling of coils of metal strip to be fed into a rolling mill (payoff mode) and to be received from the rolling mill (winder mode) comprising an expandible ma... | 10/05/1982 |
| 4339846 | Sausage coiling machine A motor driven machine for compactly coiling a chain of sausages prior to delivering the sausages to a smoking room. The machine comprises an arcuate first arm and a second, channel-like arcuate arm; an elongated drive shaft is disposed within the second ... | 07/20/1982 |
| 4336912 | Winding device A chucking spindle in a winding device with means for synchronizing the clamping and releasing movements of the clamping elements for the spool or bobbin tube and the gripping elements for the initial thread applied during thread transfer.... | 06/29/1982 |
| 4317577 | Rotary expandable tool with hydraulic internal intensifier A relatively high fluid pressure actuated rotary arbor or chuck having internal pressure intensifying differential pistons for converting relatively low pressure from an outside supply through a relatively low pressure non-rotating coupling connection. A ... | 03/02/1982 |
| 4279386 | Compact pneumatic reel latch An automatic, pneumatic reel latch, comprising a hub adapted to be attached to a drive shaft of a tape deck, the hub has an annular groove forming an inner cylindrical surface and an outer thin cylindrical shell. A cup-shaped piston is fitted with a rolli... | 07/21/1981 |
| 4254920 | Air shaft An expansible shaft including a hollow axially-extending body and operatively coupled core engaging and retracting sections within the body. The core engaging section includes a core engager movable relative to the body in a direction generally perpendicu... | 03/10/1981 |
| 4244534 | Strip coiler A strip coiler has an expandable coiling drum having on one end an outward flange which fits against an outward end flange on the end of a rotative drive shaft. The interfaces of the flanges have radial interlocking grooves and ridges. To hold the flanges... | 01/13/1981 |
