Patents Assigned to WorkTools, Inc.
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Patent number: 7178709Abstract: A desktop stapler uses a spring to store energy to install staples by impact blow. The force required to fasten papers together is reduced. A very compact mechanism is used, including a dual coil power spring with a nested lever. A multi-function base provides a sloped front all the way to down to a desk top surface to guide paper sheets atop the base, easy access for lifting the stapler off a desk, horizontal or vertical resting positions, and integrated soft grip under-surface. The base surrounds the rear of the stapler body to provide a smooth exterior so that the device is natural to use both horizontally and vertically. A simple re-set spring provides a smooth re-set action as the handle is raised. A staple track includes enlargement features to fit a larger staple pusher spring.Type: GrantFiled: February 24, 2005Date of Patent: February 20, 2007Assignee: WorkTools, Inc.Inventor: Joel Marks
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Patent number: 7124922Abstract: A stapler or like self-powered tool for dispensing and driving fasteners includes a safety mechanism to prevent unintended ejection of a staple or fastener. A movable hook normally obstructs the path of a staple so that the staple is intercepted and stopped as a spring-biased striker ejects the staple from the stapler. The striker preferably includes a notch and an end of the hook extends into the notch so that the safety mechanism can be compact. A button bar is linked to the hook and the button bar normally extends out from the stapler. When the stapler is placed against a working surface, the working surface presses the button bar vertically into the stapler, which causes the hook to rotate out from the striker slot and enables normal stapling operation.Type: GrantFiled: February 23, 2005Date of Patent: October 24, 2006Assignee: WorkTools, Inc.Inventor: Joel S. Marks
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Patent number: 7124924Abstract: A desktop stapler having a feature for alignment of the anvil with the striker is disclosed. In one embodiment, a stapler body containing a striker is pivotably attached to a base. The pivoting rotation of the body causes a front-to-back motion of the striker over an anvil. A rib disposed at the back end of the body selectively pulls the back end of a linkage to the anvil backward as the body pivots downward to the stapling position. The anvil thus translates in relation to the body to maintain a close alignment of the striker over the anvil. The base assembly may include a cover plate slidable upon a base, wherein the cover plate includes the anvil. Another embodiment uses a tab that urges a staple track to be forcibly pulled open as the body is rotated away from the base.Type: GrantFiled: November 17, 2004Date of Patent: October 24, 2006Assignee: WorkTools, Inc.Inventor: Joel S. Marks
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Patent number: 7118019Abstract: An anti-jamming design for a stapler track provides reduced force to shear a staple from a rack of staples. In stapling, a front staple must be separated from a rack of staples to eject the staple out. Conventional staplers shear the glue that holds the staples together all at once, so the peak force to separate the staple is high. In the present invention the glue that holds staples together in a rack is sheared by a peeling action. Locally progressing sections of glue are peeled as the front staple is sheared from the adjacent second staple. According to one embodiment of the invention progressive shearing is provided by an asymmetric track front end, whereby the front staples are fully supported on one side only so that the staple rack twists as the striker slowly presses down. The striker contacts the supported, higher, side of the staple first and the staple begins to shear from this higher side.Type: GrantFiled: December 11, 2003Date of Patent: October 10, 2006Assignee: WorkTools, Inc.Inventor: Joel Marks
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Patent number: 7080768Abstract: A desktop stapler includes an automatic opening staple track whereby when the stapler is opened by pivoting the body about the base, the track is de-latched by ribs of the base, and the track slides out from a chamber within the body. The stapler includes a track alignment system that holds the front of the body precisely over the anvil by use of forward and rear torque arm contact areas between the base and track. The stapler also features a striker bottom edge that is shaped to follow the curved shape of the anvil so that the striker may enter the anvil recess without impacting the anvil. A staple chamber in the stapler has staple exit ribs that allow only one staple at a time to be ejected from the staple chamber.Type: GrantFiled: August 23, 2004Date of Patent: July 25, 2006Assignee: WorkTools, Inc.Inventor: Joel S. Marks
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Patent number: 6966550Abstract: A compact clamp design includes an upper and a lower arm fitted with gripping pads at respective front ends and hinged together at respective back ends. The rearward positioned hinge enables the clamp to open very wide since the hinge and the gripping pads are relatively very far apart. An operating handle integrated as part of an upper arm. When the clamp is closed there are no protruding members. The clamp is very compact and minimally obtrusive.Type: GrantFiled: October 18, 2002Date of Patent: November 22, 2005Assignee: Worktools, Inc.Inventor: Joel Marks
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Patent number: 6928906Abstract: A heavy duty, large self-forming socket having a plurality of retractable gripping pins bundled in parallel and held in a frame within a housing is disclosed. The frame is positioned axially within the housing by radially extending, elongated hold elements that are positioned circumferentially around the housing. Slots in the housing exterior allow efficient inspection of the position of holes into which the hold elements are installed. A collar with shelf around the center pin protects the bias spring for the pin from over-compression. The gripping pins may be held to the frame by spring clips. An adaptor is attached wherein a secondary operation is used to remove the adaptor from the square end of the socket. The self-forming socket is well suited for use with valves and controls for water, gas, sewage conduits and piping.Type: GrantFiled: August 31, 2004Date of Patent: August 16, 2005Assignee: WorkTools, Inc.Inventor: Joel S. Marks
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Patent number: 6929253Abstract: A bar clamp operates by squeezing a handle to close a jaw. The improvements of the present invention include: A rigid locking wedge geometry wherein the wedges are parallel to each other, a simplified wire form release element, a structure for retaining a jaw locking knob upon the jaw, and a snap fitted gripping pad.Type: GrantFiled: April 4, 2003Date of Patent: August 16, 2005Assignee: WorkTools, Inc.Inventor: Joel Marks
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Patent number: 6918525Abstract: A desktop stapler uses a spring to store energy to install staples by impact blow. The force required to fasten papers together is reduced. A very compact mechanism is used, including a dual coil power spring with a nested lever. A multi function base provides a sloped front all the way to down to a desk top surface to guide paper sheets atop the base, easy access for lifting the stapler off a desk, horizontal or vertical resting positions, and integrated soft grip under-surface. The base surrounds the rear of the stapler body to provide a smooth exterior so that the device is natural to use both horizontally and vertically. A simple re-set spring provides a smooth re-set action as the handle is raised. A staple track includes enlargement features to fit a larger staple pusher spring.Type: GrantFiled: May 23, 2003Date of Patent: July 19, 2005Assignee: WorkTools, Inc.Inventor: Joel Marks
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Patent number: 6454147Abstract: A personal tool carrying device provides improvements in manufacture and appearance. A hook includes an integrally formed head end that is supported by ribs of a slot of a housing. A friction cap preferably surrounds the head end to hold the hook in a selected rotational position. The head end and friction cap are held in a cavity of the housing by a mounting element such as a belt clip. The housing swivels in relation to the mounting element. The device provides various surfaces for product identifying information.Type: GrantFiled: May 12, 2000Date of Patent: September 24, 2002Assignee: WorkTools, Inc.Inventor: Joel Marks
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Patent number: 6386530Abstract: A bar clamp operates by squeezing a handle to close a jaw. The improvements of the present invention include: low actuation force, two speed action to provide both high speed closing and high force clamping, a removable bar to allow different length bars to be installed into one body, a side mounted bar release button which allows easy access and an increased handle stroke, and reinforced wedge elements.Type: GrantFiled: August 10, 2000Date of Patent: May 14, 2002Assignee: WorkTools, Inc.Inventor: Joel Marks
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Patent number: 6357251Abstract: A portable cooling device includes an elongated chamber supported on a surface at an angle. The preferably cylindrical chamber holds a cylindrical bottle where an annular air space surrounds the bottle. The high efficiency design provides for adjusting the air direction with a one-piece pivotable outlet vent. A clamshell chamber made from two half-tubes allows easy plastic molding and access to the chamber interior for cleaning and for removal of the condensate tray. The integrated monolithic shape of the device fully encloses the working parts for a clean sanitary look.Type: GrantFiled: May 3, 2000Date of Patent: March 19, 2002Assignee: WorkTools, Inc.Inventor: Joel Marks
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Patent number: 6355892Abstract: An improved trigger to activate a switch for power actuated devices is disclosed. A one piece molded part provides a return spring and a trigger lock as an element of the trigger. Both the return spring and the lock include extended resilient portions to allow motion of the return spring and the lock in relation to the body of the trigger. Either one or both of the lock and the return spring may be a part of the trigger of the invention.Type: GrantFiled: August 2, 2000Date of Patent: March 12, 2002Assignee: WorkTools, Inc.Inventor: Joel Marks
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Patent number: 6145728Abstract: A compact simplified staple gun mechanism is disclosed. The invention provides an improvement to conventional staple guns and particularly to a forward action type staple gun. A compact high efficiency reset spring applies force in selected directions depending on the position of an actuating lever in the reset cycle. The lever and power spring engage a plunger through multiple proximate openings in the plunger while retaining a strong compact configuration. The lever and power spring are partially nested in each other and pivot about a common post of the housing. The above combined features provide a high efficiency compact staple gun tool.Type: GrantFiled: April 26, 1999Date of Patent: November 14, 2000Assignee: WorkTools, Inc.Inventor: Joel S. Marks
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Patent number: 6131788Abstract: A device to improve attaching wires to a substrateby with a staple gun is disclosed. An elongated nose piece extends down from the front of the tool body and locks in position to hold the tool bottom a preset distance away from the substrate. The nose piece includes a recess to provide clearance for the wire as the nose piece is pressed against the substrate. The wire guide improves the operation of stapling wires by preventing the staple from crushing the wire and by aligning the tool over the wire so that the staple points are inserted a safe distance to each side of the wire. The present invention is an improvement over the prior art staple gun wire guides since it is a permanent part of the tool. It is slidably fixed to a vertical track at the front end of the tool. It does not increase the bulk of the tool front end and cannot be misplaced. In one embodiment the wire guide is internal to the tool in sliding contact with the plunger.Type: GrantFiled: December 9, 1998Date of Patent: October 17, 2000Assignee: WorkTools, Inc.Inventor: Joel S. Marks
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Patent number: 6085619Abstract: An adapter for adapting use of a universal socket tool or wrench to a tool bit is disclosed. The universal socket contains a plurality of spring biased pins closely packed in parallel to apply torque to bolts, nuts, and similar fasteners. To broaden the utility of such a universal socket, the adapter holds a hex shanked screwdriver bit into the socket so that the pins can apply torque to the screwdriver shank. The adapter further stabilizes the bit drive end so that the bit does not wobble. The adapter has a body with a hole at one end to receive a bit and a recess at the opposite end to receive the socket. The adapter is made of an elastomeric material so that the bit can easily be forced into the hole and the socket can be forced into the recess. The recess has a minimum inside width or diameter at its open end so that a lip of the recess contacts the socket exterior away from the socket end.Type: GrantFiled: August 13, 1998Date of Patent: July 11, 2000Assignee: WorkTools, Inc.Inventors: Jonathon D. Blake, Joel S. Marks
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Patent number: 6082512Abstract: A stepless ratchet one way clutch mechanism, which provides an improved ratchet tool, is disclosed. A drive head is rotatably fitted into a cylindrical recess in a wrench housing. The drive head includes a partially triangular shape with three flat sides equally spaced around its circumference. A latch is positioned between each flat side and the internal wall of the recess. A selector mechanism provides a rotational bias to the three latches about the rotational axis of the drive head. The drive head may rotate in the wrench in the same direction that the selector is turned. The drive head is prevented from rotating in the opposite direction by wedging the latches between the drive head and the cylindrical internal wall of the recess. The selector bias may be switched either way. When the bias is switched, the latches rotate slightly about the drive head and corners of the drive head contact spaced apart segments of each latch.Type: GrantFiled: April 13, 1999Date of Patent: July 4, 2000Assignee: WorkTools, Inc.Inventor: Joel Steven Marks
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Patent number: D443135Type: GrantFiled: August 10, 2000Date of Patent: June 5, 2001Assignee: WorkTools, Inc.Inventors: Joel Marks, Surapon Arleekul
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Patent number: D513159Type: GrantFiled: January 21, 2005Date of Patent: December 27, 2005Assignee: WorkTools, Inc.Inventors: Joel Marks, Surapon Areekul
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Patent number: D514906Type: GrantFiled: January 21, 2005Date of Patent: February 14, 2006Assignee: WorkTools, Inc.Inventors: Joel Marks, Surapon Areekul