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System for magnetically attaching templeless eyewear to a person
A system of eyewear that eliminates the need for hinges on the frames of the eyewear.
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| Number | Title | Issue Date |
| 7533869 | Ratcheted lift mechanism The present invention is related generally to hoists, and more particularly to a hoist system for safely raising, storing, and lowering loads. ... | 05/19/2009 |
| 7401765 | Winching and drawing machine A winching and drawing machine comprises a drive shaft for driving a load sheave, a pressure receiving member fitted onto the drive shaft, brake plates installed in contact with the pressure receiving member and fitted onto the drive shaft, a pawl wheel interposed b... | 07/22/2008 |
| 7159852 | Manual marine winch internal gearing A manual swivel winch of the present invention includes internal drum gearing. The winch has a pair of spaced side plates, a rotating drum supported between the side plates, an internal drum gear coaxially mounted with the rotating drum, and a pinion drive gear enga... | 01/09/2007 |
| 7128307 | Manual marine winch with compound handle A manual swivel winch includes safe loading mechanism. The winch has a pair of spaced side plates, a rotating drum supported between the side plates, a drum gear coaxially mounted with the rotating drum, a pinion drive gear engaging and rotating the drum gear, and a... | 10/31/2006 |
| 7125000 | Post puller A winch-actuated post puller is disclosed which applies a substantially linear withdrawal force to a post to be removed from the ground. A post gripper is attached to a slider that rides on a vertical shaft. The slider is raised by means of a cable attached to a win... | 10/24/2006 |
| 7077245 | Torque controlled brake The structure and operation of a brake 1′ associated with an electric motor driven chain hoist 2′, according to FIG. 6, are exactly the same as those of the manually operated system, except that a shaft 4a′ of the electric mo... | 07/18/2006 |
| 6938881 | Manual marine winch with lead in webbing strap A manual marine winch includes a housing, a rotating drum in the housing, a drum rotating and holding mechanism, and a winch line having a lead in end formed by a webbing strap. The webbing strap can include an integral safety indicator such as load indicating indic... | 09/06/2005 |
| 6588731 | Hoisting and towing device In a hoisting/pulling device comprising a pinion gear 4, reduction gears 5a which are meshed with the pinion gear 4 and are rotatably mounted in a frame 1, and a load sheave which is interlocked with reduction gears 5b and is rotatably mounted in a frame ... | 07/08/2003 |
| 6578824 | Overload-preventing device for winch The present invention provides an overload-preventing device for a winch, by which even an overload is caused to descend. The overload-preventing device includes an accommodation hole that is formed in a rotation drive member and is open in the contact pl... | 06/17/2003 |
| 6517054 | Lever hoist with overload preventing device A lever hoist with an overload preventing device comprises a pressing member for rotatably pressing a pressed member via a reverse rotation preventing ring and a pair of friction members, and a rotation drive member capable of transmitting rotating force ... | 02/11/2003 |
| 6439078 | Overload protection device for a lever An overload protection device for a manual hoist lever including a pressure hub, an outer hub, a brake nut, and a dowel pin. The pressure hub includes a radially extending flange and a cantilevered boss having a threaded outer surface with an axial groove... | 08/27/2002 |
| 6406001 | Chain lever hoist For providing a chain lever hoist that can ensure a stable free rotation operation over a long term with a simple design, improvement is made in the chain lever hoist wherein an engaging pawl is switched to a neutral position, at which the engaging pawl i... | 06/18/2002 |
| 6352243 | Chain hoist with overload prevent device The object is to provide a chain hoist with an overload prevent device, ensuring an easy and secure adjustment of load limit numerical values. It comprises a pressing drive member 8 for pressing and rotating a pressure receive member 7 by way of a backsto... | 03/05/2002 |
| 6291845 | Fully-dielectric-isolated FET technology A field-effect transistor structure wherein a single patterned thin film semiconductor layer: is monocrystalline, and epitaxially matched to and dielectrically isolated from an underlying body region, in channel locations; and is polycrystalline in source... | 09/18/2001 |
| 6224039 | Chain block A chain block which can ensure free rotation of a hand wheel when the hand wheel is rotated in a hoisting direction in the state in which an overload protection mechanism is in operation and also can ensure the lowering of a load when the hand wheel is ro... | 05/01/2001 |
| 6059267 | Lever hoist A hoist is a hoisting device wherein a pressure receiving member 6 rigidly secured to a drive shaft 5 is rotated by a press drive member 7 through a reverse rotation stop ring 10 and a pair of friction members 8,9 disposed on both sides of said stop ring.... | 05/09/2000 |
| 6019561 | Device for erecting a wall The present invention relates to a collapsible device for assisting a construction worker in erecting a framed wall. The device includes an elongated telescoping arm having a planar foot member at a first end thereof for vertically securing the arm to a f... | 02/01/2000 |
| 5954285 | Driving arrangement for a motorized fishing reel A driving arrangement for a motorized fishing reel has a first or driving gear, a second larger gear, a third or pinion gear, and a fourth gear. The driving gear is mounted to and driven by a shaft of a motor. The second gear is meshed with and driven by ... | 09/21/1999 |
| 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 |
| 5769398 | Lever hoist A lever-type hoist comprising a pressure receiving member 6, a press drive member 7 adapted to press-drive the pressure receiving member 6 through friction members 8, 9 and a reverse rotation stop ring 10, and a coil spring 13 interposed between the press... | 06/23/1998 |
| 5647576 | Chain lever hoist The most commonly used spring type chain lever hoists suffer from a major drawback in that, if the chain is drawn quickly over the load sheave while it is set for free running operation, the brake will automatically be applied and the free running movemen... | 07/15/1997 |
| 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 |
| 5586751 | Manual chain block One of the hand wheel and the brake ratchet wheel is provided with a cover portion extending toward the other thereof and having a circular peripheral surface which covers the lining plate, and the other of the hand wheel and the brake ratchet wheel is pr... | 12/24/1996 |
| 5575456 | Lever operated hoist A lever operated tool, such as a chain hoist, is provided with a free wheel mechanism allowing a lift wheel to be selectively disconnected relative to a driving gear in response to rotations of a manual control knob. The knob controls sliding movement of ... | 11/19/1996 |
| 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 |
| 5538222 | Chain lever hoist The most commonly used spring type chain lever hoists suffer from a major drawback in that, if the chain is drawn quickly over the load sheave while it is set for free running operation, the brake will automatically be applied and the free running movemen... | 07/23/1996 |
| 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 |
| 5531651 | Differential gear system using the change in input direction to control the output speed ratio A differential motion gear system that controls the output speed ratio by changing the revolving direction of the input shaft. Different embodiments produce different combinations of output direction and output speed ratio.... | 07/02/1996 |
| 5511447 | Automatic ratchet block A ratchet block comprised of a frame, movable sheave assembly, ratchet assembly, ratchet assembly and cam wherein the ratchet automatically engages under load permitting rotation of the sheave in only one direction, and disengages when the load is removed... | 04/30/1996 |
| 5472172 | Lever stop for a lever operated hoist A lever rotation limiting device which permits lever orientation anywhere within the full arc of rotation plus an additional degree of rotation to permit effective operating range as, for example, in a lever operated hoist.... | 12/05/1995 |
| 5472171 | Free rotation control apparatus for a hoist and traction machine A hoist and traction machine having a mechanical brake (13), wherein a not-relative (14)-rotatable operating handle (18) is axially movably an interposed between a stopper (17) provided at an axial end of a driving shaft (5) and a driving member (8) threa... | 12/05/1995 |
| 5421553 | Lever-type winch idler device An idler device is for use in a lever-type winch having a brake including a hub fixed to a pinion shaft, an actuating member mounted on a threaded portion of the pinion shaft, and a ratchet wheel and two brake plates interposed between the hub and the act... | 06/06/1995 |
| 5398912 | Hoist including brake cover and operating lever coupling A hoist and traction machine having a load sheave, a driving shaft and a driving member which is screw-threadedly engageable with the driving shaft. An operating handle 16 has an inner plate 16a and a brake cover 13a to cover a mechanical brake. The inner... | 03/21/1995 |
| 5364073 | Free-chain device for a lever hoist A function selector knob for selecting a free-chain function is provided with a selectively positioned bias dog which contacts a brake driving gear threadingly engaged on a pinion shaft, alternatively biasing the gear in a brake engaging or brake release ... | 11/15/1994 |
| 5351937 | Hoist and traction machine with free rotation control A hoist and traction machine having a free rotation control device/apparatus for selectively controlling the mechanical brake to be inoperative and for maintaining the inoperative mode of the mechanical brake, so as to control the free rotation of the loa... | 10/04/1994 |
| 5319997 | Automatic ratchet block A ratchet block comprised of a frame, moveable sheave assembly, ratchet assembly and cam wherein the ratchet automatically engages under load permitting rotation of the sheave in only one direction, and disengages when the load is removed permitting rotat... | 06/14/1994 |
| 5305989 | Hoist and traction machine with free rotation control A hoist and traction machine having a mechanical brake, in which an operating handle is non-rotatably and axially movably interposed between a stopper provided at an axial end of a driving shaft and a driving member screwable with the driving shaft. Betwe... | 04/26/1994 |
| 5238226 | Lever operated hoist In an unloaded state, by pulling the pressing drive member apart from the pressure bearing member by moving to the operation wheel side, the load sheave is allowed to rotate freely without disengaging the pinion of the drive shaft and the load sheave. In ... | 08/24/1993 |
| 5156377 | Lever-operated hoist A lever-operated hoist having a structure for continuously lowering the lower hook side chain and end side chain of load chains in no-load state comprising a pressure drive member movably screwed in the axial direction on a drive shaft, a rotation limitin... | 10/20/1992 |
| 5149058 | Lever-operated hoist A lever-operated hoist with an operation lever support structure capable of operating smoothly, especially in the horizontal position. The operation lever has an inner tubular part which is slidably and rotatably supported in or on the a tubular part of t... | 09/22/1992 |
