子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Wrench assisting tool and method | US275766 | 1994-07-15 | US5528964A | 1996-06-25 | Jonathan R. Smith, Jr. |
| A torque multiplying assist tool engages and pivots about a fulcrum to assist a conventional wrench in operating upon a work-piece. The assist tool functions as a secondary lever by receiving an applied force, pivoting about the fulcrum, and exerting a multiplied force upon the wrench. The wrench includes a grip element that is engaged to the work-piece and a handle extending from the grip element. The multiplied force is applied by way of a linkage assembly to the handle of the wrench causing the wrench to pivot such that torque is applied to the work-piece. In accordance with the preferred embodiments of the present invention, the assist tool is constructed and arranged to cooperate with the wrench to aid in the removal of a lug nut from a vehicle wheel. The work-piece is a lug nut (i.e., a primary lug nut) on the wheel and the fulcrum is another lug nut (i.e., a secondary lug nut) on the same wheel. The assist tool includes a pivot assembly for engaging and pivoting relative to the secondary lug nut and a handle extending from the pivot assembly. In accordance with the first preferred embodiment of the present invention, the linkage assembly extends between the handle of the assist tool and the handle of the wrench, and the wrench is a conventional ratchet wrench. In accordance with the second preferred embodiment of the present invention, the linkage assembly extends between the pivot assembly of the assist tool and the handle of the wrench, and the wrench is a conventional lug wrench. In alternate embodiments an assist tool and wrench are joined so that they remain assembled to one another and generally properly oriented with respect to each other for convenient deployment as a single unit. An improved lug wrench is provided in another alternate embodiment. | ||||||
| 182 | Utility shutoff key | US235981 | 1994-05-02 | US5456278A | 1995-10-10 | Jeffrey B. Morris; Michael K. Williams |
| This invention is a dual shutoff key which is a single tool for shutting off both gas and water utilities. This capability is important in emergencies, such as approaching hurricanes or after an earthquake. The key consists of a main bar having a U-channel at one end for main water valve shutoff, and a skew slot for main gas valve shutoff. Hinged to the main bar is a lever bar which can swing out at right angles to the main bar to provide leverage when turning a normally tight or even corroded water valve. The main bar is long enough to reach down to below-ground water valves, and the lever bar is long enough to provide a torque of 150 foot-pounds. This enables persons with limited manual strength--such as children, the handicapped and the elderly--to shut off water.For gas shutoff the main bar provides sufficient leverage and the lever bar is placed in the folded position adjacent to the main bar. The lever bar is held in place by detents in the folded position. For storage, the folded key can be suspended from the gas slot. A self-luminous band on the outside of the folded lever bar helps retrieval of the key from storage during dark when an emergency has knocked out electric lights. Steel construction makes for a sturdy shutoff key which can take the design torque without deformation. All surfaces of the shutoff key are made inert by a vinyl coating which eliminates potentially dangerous releases of surface vapors and arcing. | ||||||
| 183 | Pocket screwdriver | US244086 | 1988-09-14 | US4827812A | 1989-05-09 | Donald J. Markovetz |
| A pocket screwdriver 10 having a hollow shaft 11, one end of which is contoured to receive the hexagonal shaft 25 of a standard interchangeable screwdriver bit, 13 or 18, a thrust bearing magnet 17 for magnetically attaching to the standard hexagonal bit, a storage compartment 23 for storing one or more interchangeable hexagonal bits, a shirt pocket clip 15 attached to the hollow shaft 11 and a torque cap 12 which can be radially attached to the shaft thereby acting as torque amplification means. | ||||||
| 184 | Handled ratchet-breaker bar tool | US908727 | 1986-09-18 | US4790219A | 1988-12-13 | Kenneth L. Will |
| A handled ratchet-breaker bar tool characterized by the provision of one or two elongated pivotal handles which permit tool usage at usually remote locations. A removable knob is included for added pressure application at the job site, where the length of the assembly for such knob is adjustable. Additionally, a ratchet directional control is effectively arranged for ready operator usage. Moreover, the instant tool is easily converted to satisfy a variety of nut/bolt tightening and/or loosening requirements. | ||||||
| 185 | Wrenches | US6772 | 1987-01-27 | US4748874A | 1988-06-07 | Peter G. Sharp; George Spector |
| A quick rotation wrench is provided and consists of a wrench body and a small handle for quick rotation of the wrench body to tighten and loosen a head of a bolt or the like. | ||||||
| 186 | Direction-changeable structure of hand tool handle | US948407 | 1986-12-30 | US4696208A | 1987-09-29 | Tsay T. Lay |
| A direction-changeable structure of the hand tool handles comprises mainly a body, a coupling tube, and a sleeve. The hand tools of different functions, such as screw driver, thread tapper, socket wrench, etc., can be fixed on the front of the body by a chuck, chucking blocks and a clip to function differently. The body is fixed inside a coupling tube by an arc key which is placed in a key way forming in the inside of the coupling tube. Having a direction selective mechanism attached to it, the main function of the coupling tube is to transmit torque and to select torque transmission direction. The coupling tube can insert into a sleeve which can receive every parts constituting the device according to this invention and fix them together. A handle bar can pass the holes forming in the coupling and sleeve to transmit large torque if necessary. | ||||||
| 187 | Multi-purpose socket ratchet wrench | US812749 | 1985-12-23 | US4611514A | 1986-09-16 | Henry D. Hyde |
| A multipurpose socket ratchet wrench with a socket recess above the ratchet and a socket probe below the ratchet attached to a grip lever handle capable of attaining a plurality of secured angled positions relative to the ratchet head. A forked lever balance auxiliary handle is provided that is attachable over the grip lever handle end or the ratchet head end to provide for a variety of useful mechanical configurations. Further, a multiportion extension drive and a rapid cranking means are provided which further multiply the variety of configurations which can be safely and conveniently utilized with this device. | ||||||
| 188 | Driver tool | US329303 | 1981-12-10 | US4448097A | 1984-05-15 | David Rocca |
| A driver tool utilizing a sleeve which fits within and rotates with an elongated shaft. Driving bits are held to the sleeve and turned by the action of the rotating shaft. A handle which is expandable connects to the elongated shaft. | ||||||
| 189 | Allen wrench handle | US253066 | 1981-04-10 | US4424728A | 1984-01-10 | Paul M. MacDonald |
| A handle is provided for use with an Allen wrench by means of which leverage and grip on the wrench is improved and protection is provided in the event that the wrench should break during use. The handle is comprised of an elongated shank portion having an axial passage therein to receive the long end of the wrench. A head is provided at the end of the shank portion and formed with a recess perpendicular to and open to the shank passage to receive the short end of the wrench. A spring-loaded pivoted finger providing a toggle action is mounted in the head to hold the end of the wrench within the handle during operation thereof. | ||||||
| 190 | Hand drive tool | US168548 | 1980-07-14 | US4356852A | 1982-11-02 | William C. Smith |
| An improved hand tool includes a well at the top of the handle into which the upper end of the shank extends. The well is adapted to receive a torque producing socket wrench drive which engages the shank in order to transmit the torque producing drive directly to the tip of the hand drive tool. In the preferred embodiment the shank which extends into a well has a hexagonal cross-section and is adapted to cooperate with a standard socket wrench. Tips of various configuration may be employed. | ||||||
| 191 | Ratchet driver | US950439 | 1978-11-06 | US4206794A | 1980-06-10 | William C. Reese |
| A ratcheting screwdriver is provided having an integral handle, shank and blade with a receiver body intermediate the handle and blade removably receiving a ratchet drive handle. | ||||||
| 192 | Wire nut tool | US3769862D | 1972-05-17 | US3769862A | 1973-11-06 | MILLER L |
| A wire nut tool which includes a sleeve having an open end and an opposite connecting end, a first cavity in the sleeve proximate the open end sized to receive at least a portion of a wire nut, and a second opening proximate the opposite end of the sleeve sized to receive a second wire nut. Slots are formed in the sidewalls of the sleeve proximate the open end for receiving the turning wings of a first wire nut and second slots are positioned in the sidewalls of the sleeve proximate its connecting end for receiving the turning wings of a second smaller sized wire nut.
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| 193 | Leverage operated screwdriver | US3656523D | 1970-07-14 | US3656523A | 1972-04-18 | MCGEE ANDREW T |
| A screwdriver implement, the tool including a straight shank, one end of the shank being flattened to be receivable within a screwdriver slot the other end of the shank having a handle secured thereto, and sidewardly pivotable lever for leverage purpose being movable between a position parallel to the shank and a position at right angle thereto, wherein the handle is rotatable on the shank when the lever is at right angles to the shank.
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| 194 | Ratchet tool | US3650165D | 1969-11-21 | US3650165A | 1972-03-21 | WOLFE PAUL W |
| A ratchet tool having a radial handle operatable in either direction and adapted to be placed in a neutral position, and an axial handle which can rotate in either direction when the radial handle is in its neutral position and in the effective direction of the radial handle when the latter handle is in operating engagement with the ratchet mechanism. The radial handle contains a longitudinal shaft and a knob at the end thereof for controlling the ratchet mechanism.
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| 195 | Safety screwdriver | US3608596D | 1969-05-12 | US3608596A | 1971-09-28 | YOHO DONALD A |
| This screwdriver has a cylindrical tube in which is a flat thin blade. The blade is formed with a rectangular edge which lies in a plane coplanar with the end of the tube. The blade is frictionally and securely fitted in diametrically opposed grooves inside the tube. The exterior of the tube has axially extending marks etched at diametrically opposed positions coplanar with the blade in the tube.
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| 196 | Racheting handtool mechanism | US3475999D | 1967-12-20 | US3475999A | 1969-11-04 | ROBERTS WILLIAM M; ROBERTS RONALD W |
| 197 | Disc-like socket wrench having laterally pivoting arms | US39011464 | 1964-08-17 | US3269228A | 1966-08-30 | WILBUR MACK |
| 198 | Socket wrench with captive handle | US21455262 | 1962-08-03 | US3161093A | 1964-12-15 | HOAG GILBERT L |
| 199 | Auxiliary crank for a screw driver | US80720459 | 1959-04-17 | US2938555A | 1960-05-31 | ERKKI PAAJANEN |
| 200 | Screw driver with screw holding means | US54749855 | 1955-11-17 | US2905215A | 1959-09-22 | WILLIAM HLYNSKY |
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