Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7424840 | Nail gun A nail gun with an improved nail-belt transmission mechanism that comprises a ratchet wheel coupled to a transmission gear wheel through a transmission axle. One end of the transmission axle is provided with a link capable of driving the first ratchet wheel by a sec... | 09/16/2008 |
| 7415910 | Continuous screw tightening machine A continuous screw tightening machine including a driving machine (4) equipped with a grip handle (2); a tightening machine main body (3) with which a bit (7) for screw tightening is removably connected to the driving machine (4) t... | 08/26/2008 |
| 7093743 | Pneumatically operated power tool having mechanism for changing compressed air pressure A pneumatically operated power tool such as a screw driver, a nail gun and an impact wrench those being driven by a pneumatic pressure. A pressure reduction valve is provided between a connector connected to a compressor and a compressed air chamber defined in an ou... | 08/22/2006 |
| 7073699 | Fastening tool A fastening tool applies parts, in particular plastic parts, to objects. The plastic parts are supplied in the form of a belt in which the plastic parts are linked together by at least one flexible web. The fastening tool transports the belt by a feed mechanism such... | 07/11/2006 |
| 7055408 | Apparatus for tightening threaded member An apparatus (10) for tightening a hexagon head bolt (13) includes a vertically movable automatic robot arm (16), a screwing mechanism (18) having a rotational part (19), a shaft member (20) mounted to the rotational part, a... | 06/06/2006 |
| 6952853 | Screw driving device A screw driving device (2) for a hand tool drilling device (1) includes a screw magazine (3) for successive feeding of screws or bolts (4), a feeder block (6) that can be axially displaced against the force of a feeder spring (5... | 10/11/2005 |
| 6915724 | Apparatus for driving fasteners, including screws, nails, pop riverts and staples Apparatus for driving fasteners, in particular screws, nails, pop rivets, and staples, is disclosed. It has a motor-drivable feeder that moves the fasteners sequentially from a feed position into a driving position, and with an adjustor has a manually rotatable thre... | 07/12/2005 |
| 6904834 | Screw-belt advancing mechanism for a screw driving gun A screw-belt advancing mechanism of a screw driving gun includes a barrel unit, a sliding unit connected telescopically to the barrel unit and movable relative thereto between extended and retracted positions, a pivot pin mounted on the sliding unit, and a spring-bi... | 06/14/2005 |
| 6701811 | Screw feeding device A screw feeding device includes a one-piece member composed of a gar, a hollow shaft and a positioning gear, a one-direction bearing received in the hollow shaft and a biasing plate contacting the positioning gear. The one-piece member reduces the space o... | 03/09/2004 |
| 6439085 | Double arm pawl for autofeed screwdriver A blocking and/or advance pawl mechanism for an autofeed fastener driving tool with at least one of the pawl arms maintained rearward of a next fastener to be driven from a strip holding fasteners spaced in a row.... | 08/27/2002 |
| 6425306 | Toeing nosepiece for screwdrivers A nosepiece for fastener driving tools with a contact surface for engagement with the workpiece with a rounded profile to facilitate driving fasteners at an angle into the workpiece. Preferably, the contact surface has a first radially innermost portion o... | 07/30/2002 |
| 6412370 | Structure of a screw-mounting device An improved structure of a screw mounting device comprising a machine body, a machine tubing, a controlling module and a retractable adjusting device located at one lateral side of the machine body, the end face of the front end of the machine body being ... | 07/02/2002 |
| 6230594 | Power-operated screwdriving device The present invention is a power-operated screwdriving device configured to be used with a rotary power source and a supply of collated screws. The device comprises a housing structure and a feeding assembly defines a drive track carried by the housing an... | 05/15/2001 |
| 6186035 | Power-operated screw driving device The present invention is a screwdriving device configured to be used with a rotary power source and a screw collation supply. A feeding assembly defines a drive track and a rotatable screw engaging bit member is operatively connected with a rotary power s... | 02/13/2001 |
| 6170366 | Power operated screwdriving device The present invention is a power-operated screwdriving device configured to be used with a rotary power source and a supply of screws. The screwdriving device comprises a housing structure constructed and arranged to be engaged with the rotary power sourc... | 01/09/2001 |
| 6142352 | Roofing washer-dispensing and fastener-driving machine In a roofing washer-dispensing and fastener-driving machine, which has a fastener-feeding tube, a fastener-engaging pawl is mounted operatively to the tube, near its upper end. The pawl is pivotable between a normal position wherein the pawl is arranged t... | 11/07/2000 |
| 6138535 | Power-operated screwdriving device The present invention is a power-operated screwdriving device configured to be used with a rotary power source and a supply of screws releasably mounted on a severable collation. The screwdriving device comprises a housing structure constructed and arrang... | 10/31/2000 |
| 6109144 | Successive screw feeder driver A successive screw feeder driver capable of using plural types of screws of different lengths, capable of finely adjusting a screw driving position, and further capable of coping with a difference in the mounting position of a belt-like number of pluralit... | 08/29/2000 |
| 6109146 | Continuous screw fastening machine In the case that the screw is to be driven, the extremity end of the screw chain is lifted up in an upward direction, thereby even if the screw having a flat seat surface is applied, the screw is driven under an appropriate state without holding the screw... | 08/29/2000 |
| 6085616 | Screwdriver for joining metal framing A screwdriver with a nose having a touchdown foot to engage a workpiece and an arm member forward of the foot forming a slotway between the foot and the arm member adapted to receive edges of sheet material and hold the sheet material against movement awa... | 07/11/2000 |
| 5921156 | Screw driving and turning machine A screw driving and turning machine comprises: a body having a nose portion; a driving cylinder received in the body; a screw driving mechanism having a driving piston having a driving and turning bit slidably accommodated in the driving cylinder, wherein... | 07/13/1999 |
| 5570618 | Finger release mechanism for collated strip screwdriver This invention relates to an advance and release mechanism for strips of a screwdriver assembly that sequentially drives fasteners retained in a holding strip securing a plurality of fasteners in a row. The apparatus has a slide body with a lateral slot a... | 11/05/1996 |
| 5542323 | Screw strip with overlapping washers, and method and apparatus for installation A screw strip is disclosed in which each screw carries a washer on its screw shank between the tip of the screw and a plastic strip carrying a plurality of screws. A screw driving apparatus, and method of use of the strip are also disclosed. The washers a... | 08/06/1996 |
| 5531142 | Device with automatic feeder for driving ribbon-mounted screws A device with automatic feeder, for driving ribbon-mounted screws comprising a guide in front of which a box-like body is mounted so that it can slide longitudinally; moreover the body has a shallow seat for the sliding of the ribbon which is connected to... | 07/02/1996 |
| 5473965 | Automatic screw feeding mechanism for an automatic screw driving device An automatic screw feeding mechanism includes a feed belt receiving unit including a hollow housing which is provided with a limiting unit that is connected releasably to a stop unit of a hollow casing. A feed belt extends into the housing. A retaining un... | 12/12/1995 |
| 5452630 | Screw gun with a feeder for a screw supply belt An automatic screw driving gun has a belt feeder mechanism (1) for advancing a screw supply belt (2) through a feeder housing (6) in response to the rotation of a screw drive shaft or blade (11, 28) . The belt feeder mechanism (1) has a feeder lever (12) ... | 09/26/1995 |
| 5402695 | Feeding device for an inserting tool for supplying fasteners, particularly screws A feeding device for a fastener inserting tool, particularly screw. The structure of the feeding device is a two-armed rocking lever mounted on a slide element. This mounts the sprocket wheel for rotation about the same pin as the rocking lever. The conne... | 04/04/1995 |
| 5337636 | Automatic screw feeder An automatic screw feeder to be coupled to a conventional electric screw driver so that a plurality of screws may be successively and automatically grasped and relocated from a screw supply to the screw driver bit. The screw feeder includes a swing arm as... | 08/16/1994 |
| 5284074 | Automatic screw-driving device An automatic screw-driving device including a sliding box and a sprocket to move a screw belt through the sliding box, the sprocket being locked at one of various positions to keep a screw on the screw belt at a secured position for a driver rotated by an... | 02/08/1994 |
| 5239900 | Power screwdriver automatic loading apparatus An apparatus for feeding a plurality of associated screws to an associated power screwdriver having a chuck. The apparatus includes a main body that includes a shaft dimensioned and configured to engage the chuck of the associated power screwdriver. The m... | 08/31/1993 |
| 5186085 | Screw driving device for screws connected by a screw connecting strip A screw driving device for screws connected by a screw connecting strip is essentially constituted by a motor body and a guide with which a screw magazine and a slider are associated, with said slider being provided with side channels for screw feeding an... | 02/16/1993 |
| 5058464 | Roof fastener installation machine An installation machine for sequentially driving fasteners through automatically fed plates for securing insulation to a roof deck employs a pneumatically actuated feed mechanism. The plates are loaded in a chute. A shuttle at the underside of the frame r... | 10/22/1991 |
| 4856389 | Device for setting fastener elements and pins The invention relates to a device for setting fastener elements or pins, particularly to a screw-setting device. The device comprises a housing in which a retainer shaft for a setting tool is mounted at least for axial displacement, at least one advance d... | 08/15/1989 |
| 4815343 | Robotic die mounting mechanism and method A robotic die mounting mechanism can be used to apply or remove fasteners to or from aligned locations such as pre-drilled and pre-tapped holes in a cutting die and backing drum for attaching or detaching the die to or from the drum. The mounting mechanis... | 03/28/1989 |
| 4809568 | Barrel assembly for installation tool and method of installation A barrel assembly includes a housing for attachement to a conventional driving tool. A barrel member having a through bore is slidably attached at one end to the housing and carries a stress plate retaining pad at the other end. A pre-assembled enlongated... | 03/07/1989 |
| 4774863 | Fastener feeder and driver apparatus A pneumatically operated and controlled fastener feeder and driver apparatus supplies individual fasteners, such as screws having a head and a threaded shank portion, which are maintained on a carrier strip in a magazine assembly, to a nose assembly of th... | 10/04/1988 |
| 4748877 | Supply apparatus for supplying a screw or a similar article A supply apparatus for supplying a screw, a rivet, or the like includes a chute in which one edge portion of an upper opening of a guide slit formed therein is located inside a stock section or thereabove, so that screws in an abnormal position can be rem... | 06/07/1988 |
| 4674367 | Apparatus for inserting and removing screws A portable screwdriver comprises a prime mover and, an apparatus formed as a couplable attachment, which contains the screwing tool on a drive shaft which can be connected to the prime mover. The apparatus carries a magazine receptacle for a strip-like sc... | 06/23/1987 |
| 4627316 | Automatic screwdriver An automatic screwdriver for driving a screw in a horizontal direction comprises a chute for supplying screws with their shanks hanging down, a gate for allowing the screws to be discharged one at a time out of the chute, an index mechanism for carrying a... | 12/09/1986 |
| 4602537 | Automatic assembly machine An automatic assembly machine with a rotatable socket adapted to be advanced downwardly through an active stroke to drive a hex head screw into a workpiece. Screws are supplied one at a time to the socket by a loading mechanism having a pair of jaws adapt... | 07/29/1986 |
