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 |
| 7032785 | Caulking gun having angle adjustment function A caulking gun includes a gun body, a push rod, a push plate, an adjusting knob, and a piston lever. Thus, the adjusting knob is rotated to move away from the push plate to increase the incline angle of the push plate, so that the push plate is locked on the push ro... | 04/25/2006 |
| 7032786 | Caulking gun having angle adjustment function A caulking gun includes a gun body, a push rod, a push plate, an adjusting seat, a driving member, and an elastic member. Thus, the adjusting seat is movable in the gun body by rotation of the driving member to adjust the incline angle of the push plate by guidance ... | 04/25/2006 |
| 6745921 | Hand actuated tool and clutch mechanism A clutch mechanism for a hand tool comprises a body with a converging internal wall surface which is mounted on a rod. The body houses a set of ball bearings which are biased along the converging wall into an engaged position with a rod passing through the body. An ... | 06/08/2004 |
| 6176398 | Effective trigger grip power device for caulk dispensing devices An effective trigger grip power device is disclosed for countering piston rod lock due to wear and tear in conventional manual caulking guns. The device is shown in the context of an open frame (which may be a single piece of molded plastic) having a down... | 01/23/2001 |
| 5893488 | Bone cement injector gun A paste injector gun, especially adapted for injecting bone cement, has first and second mechanical advantages. In a first embodiment, the first and second mechanical advantages are produced by two fulcrums engageable during different portions of the trig... | 04/13/1999 |
| 5887765 | Caulk gun A caulk gun is provided with a forward-biasing mechanism to maintain contact between the caulk tube and the piston rod. The forward biasing mechanism is of simple construction and is piggy-backed to the trigger housing of the caulk gun. The operation of t... | 03/30/1999 |
| 5823403 | High thrust drive system and devices employing A high thrust drive system usable in a variety of devices, e.g., fluid dispensing, article clamping, article lifting and article jacking, includes a driving rod member, an actuating member movable through a driving stroke and a return stroke, and a grippi... | 10/20/1998 |
| 5638997 | Bone cement injector gun A paste injector gun, especially adapted for injecting bone cement, has first and second mechanical advantages corresponding to different portions of the trigger stroke. The first mechanical advantage is greater than the second such that the first facilit... | 06/17/1997 |
| 5390831 | Dispensing devices for high viscosity compositions Dispensing device for high viscosity compositions includes an elongate drive rod movable in a linear direction for dispensing a high viscosity composition; a driving grip for receiving the drive rod therethrough and for engaging and driving the drive rod ... | 02/21/1995 |
| 5192008 | Pulling mechanism of an adhesive-dispensing gun A pulling mechanism of an adhesive-dispensing gun, comprising a gun barrel having a rear wall, a gun base, a trigger and a push rod, wherein a stopper plate is pivotably disposed in the gun base and formed with a hole through which the push rod extends, a... | 03/09/1993 |
| 5094120 | Bicycle speed change lever assembly The present invention provides a bicycle speed change lever assembly comprising a first lever pivotally pressed to wind up a control cable aginst a tension applied thereto, and a second lever pivotally pressed to pivotally return the first lever for payin... | 03/10/1992 |
| 5078570 | Transport system for machining operation A machining operation where a workpiece is moved stepwise in a transport direction through a succession of stations has a transport apparatus comprising a stationary housing adjacent the stations, a rail extending in the direction adjacent the stations an... | 01/07/1992 |
| 4987792 | Shifting arrangement for an automatic transmission of a motor vehicle A shifting arrangement for an automatic transmission of a motor vehicle controlled by an electronic control apparatus includes a shifting lever to be manually actuated. By pivoting the shifting lever in a first shifting lane, the different transmission sp... | 01/29/1991 |
| 4986155 | Cutting apparatus for extruded materials Apparatus (10) for repeatedly cutting extruded rubber and plastic material (M) at preselected locations along a length thereof including, a frame (11), a drive shaft (35) mounted on the frame, a drive member (25) effecting a selected speed of rotation of ... | 01/22/1991 |
| 4951846 | Hot melt applicator with anti-drip mechanism A hot melt applicator has a feeding mechanism for advancing a block of solid material toward a melting chamber, and the feeding mechanism includes a retraction device for shifting the block a slight distance in a rearward direction to a retracted position... | 08/28/1990 |
| 4951516 | Force multiplication mechanism A force transfer mechanism including a force lever through which an input force is transmitted to an output member with mechanical advantage only after the output member encounters sufficient resistance to overcome a friction connection between an input m... | 08/28/1990 |
| 4793199 | Electromagnetic precision rotary drive An electromagnetic precision rotary drive for a disk-shaped rotor. Along a peripheral annular zone of the rotor an armature band with a periodical pattern is disposed, which, within each period, varies continuously between the inner and the outer edge of ... | 12/27/1988 |
| 4744494 | Ram gun A ram gun for dispensing viscous fluid products such as adhesive, caulking materials and the like is disclosed. The gun can be rechargeable or can be employed as a single charge, disposable device. In a particular embodiment, the gun is formed in two part... | 05/17/1988 |
| 4723853 | Thermal transfer printer A thermal transfer printer wherein the carriage is equipped with the ribbon cassette and the thermal head and has a take-up shaft engageable with the take-up core of the ribbon cassette, and clutch means is provided between the motion converting means and... | 02/09/1988 |
| 4691437 | Devices for applying terminals and similar metal elements to conductors, lengths of elastic material and the like The improvements relate to devices for applying terminals and the like to the ends of filiform bodies such as conductors, lengths of elastic material and other articles. For feeding the metal strip, formed from an interconnected succession of terminals or... | 09/08/1987 |
| 4679453 | Apparatus for producing stepwise movement An apparatus for providing stepwise movement along an elongated stepped member. A holder contains at least one button that includes a pivotally mounted claw disposed to engage the stepped member when the button is depressed. The claw pivots upon engagemen... | 07/14/1987 |
| 4658991 | Hand pressure attachment for use on thermoplastic dispensing device An attachment adapted for use on a device for melting and dispensing thermoplastic material having a thumb operated drive assembly for driving a block of thermoplastic material into the device. The attachment comprises a lever having an upper end adapted ... | 04/21/1987 |
| 4653673 | Pump for precisely dispensing liquids A positive displacement pump (10) for precisely dispensing liquids through a dispensing tube (126) in which there is a pump body (12) having a shaft (18) fitted for reciprocating therein. Incremental adjusting nuts (24, 26) on an outer end (22) of the sha... | 03/31/1987 |
| 4641766 | Metering dispenser for high viscosity compositions A dispensing device including a hollow cylindrical body from which a high viscosity composition is discharged in precisely metered doses by a plunger rod longitudinally movable within the body. A series of projection are formed at equispaced, longitudinal... | 02/10/1987 |
| 4633723 | Chainless feed system of mining cutterloader A chainless feed system of a mining cutter-loader comprises a guiding rack mounted on a conveyer and meshing with gears rotatably mounted on the cutter-loader. The gears are operatively connected through a rotating mechanism with the hydraulic cylinders o... | 01/06/1987 |
| 4523705 | Mechanism for glue gun A mechanism is described which employs a safety element for preventing the application of excessive force to a linkage. In several embodiments the safety device comprises a spring which allows relative movement between a trigger and the linkage. The safet... | 06/18/1985 |
| 4509662 | Caulking gun A caulking gun of the type having a cradle to receive a cartridge of compound having a piston in it and a dispensing nozzle. The gun has a handle and operating member or trigger which drives a stem having a thrust disk which engages the piston in the cart... | 04/09/1985 |
| 4378101 | Stepwise seat slide adjuster for vehicles A stepwise seat slide adjuster for vehicles includes a stationary lower guide rail adapted to be mounted to a vehicle floor, an upper guide rail adapted to be mounted to a vehicle seat and capable of a longitudinally sliding movement relative to the lower... | 03/29/1983 |
| 4356938 | Caulking gun with pressure release mechanism A pressure release mechanism relieves pressure to a prescribed value in a caulking gun. The pressure release mechanism includes a slot positioned in the handle of the gun and a pin which slides in the slot. A pawl is pivotably attached to the pin and enga... | 11/02/1982 |
| 4350109 | Winding arrangements A winding arrangement suitable for sheeting in a sail of a yacht comprising a winch drum and a piston cylinder assembly having a double-acting piston which is reciprocable within a cylinder. A rack member, coupled to the piston, produces unidirectional ro... | 09/21/1982 |
| 4318499 | Retainer and propulsion apparatus carried in a self-contained handle for use with a removable cartridge This invention pertains to a disposable tubular cartridge and apparatus for expelling the contents from said cartridge. This novel apparatus does not employ the conventional U-shaped receiver into which the cartridge is placed but provides a self-containe... | 03/09/1982 |
| 4298342 | Automatic belt tensioner A belt tensioner has a pair of pivotally mounted cam members which engage a stationary mounting strap. One cam is pivotally mounted on a block which is drivingly connected through a pivotal lever to a linear motor. The one cam is operative to engage a sta... | 11/03/1981 |
| 4009804 | Anti-drool extrusion device An anti-drip caulking device is provided having a "floating" anti-kickback dog which engages the plunger shaft. When the forward motion of the shaft is stopped, the floating action permits recoil of the plunger and dog until a tension spring is sufficient... | 03/01/1977 |
