Implements or apparatus for applying pushing or pulling force – Single throw lever – Lazy tongs
Reexamination Certificate
2003-02-03
2004-02-24
Hail, III, Joseph J. (Department: 3723)
Implements or apparatus for applying pushing or pulling force
Single throw lever
Lazy tongs
C254S126000, C187S211000
Reexamination Certificate
active
06695289
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to scissor type jacks and, more specifically, to motor driven scissor jacks for vehicular applications.
2. Description of the Prior Art
There are other scissor jack devices designed for lifting and lowering an automobile. Typical of these is U.S. Pat. No. 2,218,733 issued to Watts on Oct. 22, 1940.
Another patent was issued to Scott on Jun. 24, 1969 as U.S. Pat. No. 3,451,655. Yet another U.S. Pat. No. 3,997,143 was issued to Rose on Dec. 14, 1976 and still yet another was issued on Mar. 31, 1987 to Chang et al. as U.S. Pat. No. 4,653,727.
Another patent was issued to Pickles on Jun. 7, 1988 as U.S. Pat. No. 4,749,169. Yet another U.S. Pat. No. 4,872,230 was issued to Levine on Oct. 10, 1989. Another was issued to Wagnon on Jul. 24, 1990 as U.S. Pat. No. 4,943,034 and still yet another was issued on Feb. 4, 1992 to Lonon as U.S. Pat. No. 5,085,407.
Another patent was issued to Yoshida on Jan. 13, 1998 as U.S. Pat. No. 5,707,043. Yet another U.S. Pat. No. 6,029,950 was issued to Yeh on Feb. 29, 2000. Another was issued to Farmer on May 29, 2001 as U.S. Pat. No. 6,237,953 and still yet another was issued on Oct. 9, 2001 to Huang et al. as U.S. Pat. No. 6,299,138.
U.S. Pat. No. 2,218,733
Inventor: Roy T. Watts
Issued: Oct. 22, 1940
This invention relates to a jacking arrangement for automobiles whereby a lifting jack is secured on the lower part of the chassis of a vehicle. The jack has a scissors configuration with a motor positioned between scissor arm elements. The extension of the jack is limited by a switch handle which is configured for cutting off the current flow as the switch is closed by the action of a jack arm approximately reaching a maximum extension position. Simultaneously, a switch handle is depressed changing the polarity of the current flow through the motor thereby positioning the motor for the retraction of the jack. At the instant prior to the jack reaching a maximum retracted position, polarity switch handle is depressed again reversing the polarity of the motor.
U.S. Pat. No. 3,451,655
Inventor: Lawrence P. Scott
Issued: Jun. 24, 1969
The present invention is a vehicular scale jack positioned on a wheeled trailer with an electric motor drive arrangement for the operation of lifting and descending of the vehicle to its position for operation. The jack has gear configured for a high speed and a low speed of operation. Switches and are used to control the direction of movement of the jack. Releasing the switches during operation stops the jack in the present position.
U.S. Pat. No. 3,997,143
Inventor: Frank P. Rose
Issued: Dec. 14, 1976
In-place vehicle jack assemblies of the pivoted lever type configured for being permanently mounted at the front and rear of the vehicle frame structure are described. Each of the jack assemblies comprise a unitary device which is independently operable by an electrical motor, and independently selectively controlled at the jack or remotely from the control compartment of the vehicle, control circuits for the jacking assemblies are interlocked with the ignition system of the engine, so that the jacks are operable only when the ignition switch is in an off position. Solenoid actuated relays mounted to the motor housing control the direction of rotation of the motor. The threads of the screw are disengaged from the nut in the fully retracted position. The screw then reengages the nut for extension.
U.S. Pat. No. 4,653,727
Inventor: Shoei D. Chang et al.
Issued: Mar. 31, 1987
The invention relates to motor driven scissors jacks for automobiles driven by an electric power source from the cigarette lighting socket of any automobile. The scissors jack includes a DC motor driven through a deceleration gear box for rotating a screw rod clockwise or counter-clockwise for the raising of the frames of scissors jacks. The jack provides the ability for the automatic raising of vehicles as well as the higher raising and lower collapsing functions and a more powerful raising capability. The jack also includes one ultimate switch for peak and low bottom points. The power supply is automatically cut off when a lower raising rod pushes snapping rod of an ultimate switch.
U.S. Pat. No. 4,749,169
Inventor: Joseph Pickles
Issued: Jun. 7, 1988
A motorized user applied actuator for automobile and like jacks having rotatable operating members for raising and lowering the jack platform. The jack comprises a casing having a drive member detachably cooperable with the jack operating member, an electric motor, and a lightweight step-down transmission connecting the motor with the drive member. The transmission comprises a plurality of staged planetary assemblages which effect a great reduction in speed and advantageous conversion of power. In several illustrated embodiments of the invention one or more handles are attached to the motor casing to provide a convenient hand grip for the manual extension and retraction of the jack. In one embodiment the drive member of the actuator has back-to-back elements alternately engageable with the jack operating member to effect a reversal of the jack movement without reversing the motor. A handle includes start and stop buttons conveniently positioned for application by a user.
U.S. Pat. No. 4,872,230
Inventor: Anthony Levine
Issued: Oct. 10, 1989
A portable automatic automobile scissor jack is described including an electrically powered automobile tire nut remover. The jack is powered through a cigarette lighter type plug by the automobile battery, and has an outlet for powering of a tire nut remover or other equipment. In another embodiment, the nut remover, powered by the auto battery, drives the jack.
U.S. Pat. No. 4,943,034
Inventor: Gerald E. Wagnon
Issued: Jul. 24, 1990
An adapter for a jack is described having a threadable jack shaft and a support platform that rises or lowers when the threadable jack shaft turns. The adapter has a housing containing a drive motor that is coupled to a drive shaft. The adapter has an engagement bracket for releasing and engaging the adapter to the jack. Spring loaded bolts bias the engagement bracket against the face of the housing. To stop the jack a switch can be positioned in a neutral position. In addition, at a lower limit the engagement bracket is disconnected from the support-alignment bar to disengage the drive shaft from the threaded jack shaft. A jack and adapter in combination and a method for operating a jack having support aligning bars wherethrough a threadable jack shaft rotatably passes to raise or lower a support platform of the jack upon rotation.
U.S. Pat. No. 5,085,407
Inventor: Edward M. Lonon
Issued: Feb. 4, 1992
A motorized jack assemblage for vehicles in the form of a kit is described containing a motor and reduction gear linkage adapted to be energized from the cigarette lighter or other source of electrical power in the vehicle. The gear linkage is adapted to drive mechanical coupling means, which keys into and operates a screw type lift jack, which in one case is part of the standard equipment for the vehicle, and in another case is a jack with a specialized base which is part of the kit. A toggle switch is used to control the movement of the jack and includes a right, left, and neutral position.
U.S. Pat. No. 5,707,043
Inventor: Kazuhiko Yoshida
Issued: Jan. 13, 1998
A driving joint for jacks is described including a joint block secured to an output shaft of an electric driving unit. A U-shaped connection plate connected at its opposite ends to the joint block and provides an elongated connection hole in its front wall. The connection plate can be engaged within the U-shaped driven joint, and the elongated connection hole can be fitted to a connection plate of a T-shaped driven joint. With this arrangement, various types of jacks having different types of driven joints can be driven using the forward and reverse controls of a single electric tool.
U.S. Pat. No. 6,029,950
Inventor: Neng-Chen Yeh
Issued: Feb. 29, 2000
A scissor jack assembly is described ha
Hail III Joseph J.
Kroll Michael I
Shanley Daniel
LandOfFree
Motor driven scissor jack with limit switches does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Motor driven scissor jack with limit switches, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motor driven scissor jack with limit switches will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3350730