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 |
| 7380770 | Hoist device having selective power source The hoist device mainly contains a gear assembly and a ratchet braking assembly. The gear assembly mainly contains a chain wheel driven by a main axle running through the ratchet braking assembly which mainly contains a ratchet wheel sandwiched between a pair of bra... | 06/03/2008 |
| 7185881 | Electric winch Apparatus and methods for operating a winch system comprising a wire spooled onto a drum rotatably mounted to a shaft. A permanent magnet is mounted to the drum such that, when an electric current is applied to a coiled winding mounted to the shaft, the drum rotates... | 03/06/2007 |
| 7163754 | Sprocket wheel having a metallurgically bonded coating and method for producing same A sprocket has a base steel member including an outer toothed profile surface, at least a portion of the outer toothed profile surface having a wear and corrosion resistant coating disposed thereon; the coating comprising an alloy, the alloy comprising at least 60 w... | 01/16/2007 |
| 7055804 | Load binder with indicator A tool for binding and securing the binding of a load, said binding including a tube having a pawl disposed in a housing adapted to engage a gear that may be coupled to a tube, wherein rotation of the gear can cause extension and contraction of shafts with respect t... | 06/06/2006 |
| 6921482 | Skinned hollow fiber membrane and method of manufacture Hollow fiber membranes having a skinned surface on one diameter, and a porous surface on the opposite diameter arm produced from perfluorinated thermoplastic polymers by extruding a heated solution of the polymer having a lower critical solution temperature directly... | 07/26/2005 |
| 6883784 | Boat lift using one-way clutch A boat lift uses a one-way roller bearing in association with a friction disc clutch. A hand-wheel operator provides power input, though a motor may be substituted therefore. A gearing arrangement, a one-way roller bearing and friction clutch, a cable and cable reel... | 04/26/2005 |
| 6872889 | Snatch disconnection lanyard A snatch connector is provided with a disconnection lanyard assembly including a tensioner assembly including a spreader bar, cables, and a cable reel. The reel may be set to allow paying out of the cable or to pull in the cable and when set to pull in, will resist ... | 03/29/2005 |
| 6572083 | Winch with safe load release system A manual winch includes a housing supporting a rotatable reel, a ratchet assembly coupled to the reel movable between an engaged and disengaged position, and a load releasing system for moving the ratchet assembly system to a disengaged position. The ratc... | 06/03/2003 |
| 6446936 | Safety apparatus for horizontal lifeline A safety apparatus is capable of tensioning a horizontal lifeline while providing an adjustable shock absorber and a gauge or indicator for indicating the amount of tension on the lifeline. A housing is adapted to be secured to an anchor point through an ... | 09/10/2002 |
| 6149132 | Safety apparatus for horizontal lifeline A safety apparatus is capable of tensioning a horizontal lifeline while providing an adjustable shock absorber and a gauge or indicator for indicating the amount of tension on the lifeline. A housing is adapted to be secured to an anchor point through an ... | 11/21/2000 |
| 5957432 | Safety apparatus for horizontal lifeline A safety apparatus is capable of tensioning a horizontal lifeline while providing an adjustable shock absorber and a gauge or indicator for indicating the amount of tension on the lifeline. A housing is adapted to be secured to an anchor point through an ... | 09/28/1999 |
| 5791579 | Overload prevention clutch assembly An overload prevention clutch assembly features input and output members connected by a coupling member, which is resiliently deformable under the control of threaded fasteners to vary the torque which may be transmitted between the input and output membe... | 08/11/1998 |
| 5641151 | Chain lever hoist The free-running operation of a load sheave of a chain lever hoist is assured by an assist mechanism that keeps the relative position between a hub and a spindle of the hoist at a brake inactive position, when the screwing control position of the hub rela... | 06/24/1997 |
| 5575457 | Structure for controlling braking action of a mechanical brake of a lever type hoist and traction machine In a lever type hoist an operation handle (18) is provided between a stopper (17) provided at the axial end portion of a driving shaft (5) and a driving member (8) screwed on the driving shaft (5) so as to be movable in the axial direction but non-rotatab... | 11/19/1996 |
| 5556078 | Manual hoist and traction machine A manual hoist and traction machine wherein an outer diameter of a first lining plate constituting a mechanical brake is made smaller than an inner diameter of a driven disc of a handwheel. The outer diameter of a second lining plate and of a driven disc ... | 09/17/1996 |
| 5535988 | Lever type hoist having reverse rotation preventive mechanism If the load applied on the load sheave is small, the pressing drive member contacts tightly with the friction members to make secure the braking of rotation of the drive shaft, so that the small load is prevented from moving downward by its own gravity, a... | 07/16/1996 |
| 5344121 | Safety winch A winch, for example, for winding in and paying out a cable attached to a person in a hazardous situation, for example underground, comprises a pair of axles mounted on a frame, one of the axles carrying the cable drum for rotation therewith. Two safety b... | 09/06/1994 |
| 5002259 | Power winch system A power winch is described which includes drive means with an output shaft, lock means to prevent reverse rotation of the shaft and a drum clutch assembly. The drum can be selectively engaged with or disengaged from the drum shaft. The lock means prevents... | 03/26/1991 |
| 4913076 | Anchor davit assemblies An anchor davit assembly preferably includes an anchor support bracket and a winch. The bracket is provided with a releasable locking system to positionally lock the anchor to the anchor support bracket, the locking system including a lever which is pivot... | 04/03/1990 |
| 4746100 | Winch drag brake apparatus In order to overcome the disadvantage of overspinning of a winch drum when a disconnect device adjacent the drum is disengaged, a drag brake apparatus is provided for limitedly restricting the rotation of the drum when an actuator having a braking element... | 05/24/1988 |
| 4463933 | Clutch/brake mechanism There is disclosed a clutch/brake mechanism of the "disc" type wherein the coacting friction producing members are severally configured of frusto-conical and planar form whereby sealing contact is maintained at the peripheral surfaces thereof when in a br... | 08/07/1984 |
| 4372535 | Apparatus for adjusting cable tension A capstan winch for pulling cable through conduit includes means for measuring the torque applied to the capstan and a take-up reel. The torque measuring means comprises an inner drum connected by a tension spring to a concentric outer drum. A patterned d... | 02/08/1983 |
| 4348011 | Hoist with improved overload protection A hoist having an overload protection device is provided with a locking mechanism between a hoist body and a disc hub at a mechanical brake provided at the hoist body, the locking mechanism utilizing forward screwing of a driving member forming part of th... | 09/07/1982 |
| 4307870 | Clutch mechanism for hoisting apparatuses The drum of a hoisting apparatus is axially shifted to frictionally engage a driving plate. The drum is shifted by rotating an adjacent, first disc about the drum axis relative to a coaxial stationary disc. Each of the discs has three holes of a particula... | 12/29/1981 |
| 4065100 | Hoist load brake An improved load brake mechanism for hoists allows free movement of load supporting means connected with the hoist. The mechanism will stop the supporting means whenever the means achieves a predetermined velocity or acceleration. The braking mechanism al... | 12/27/1977 |
