Patents Assigned to Wolf-Gerate GmbH Vertriebsgesellschaft
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Patent number: 6124791Abstract: In an electromotively driven garden appliance, for example a lawnmower or a lawn-aerator, the on-off switch is usually arranged on the handle-bar such that it can easily be accessed for operation. This on-off switch is connected via a cable to the motor circuit, the cable being guided along one branch of the handle-bar. According to the invention, in order to avoid damage to the cable and resultant unreliable contact-making when the handle-bar is folded down, the cable is replaced by a wireless connection, in particular by infrared radiation, radio or ultrasound. For this purpose, a transmitter is assigned to the electrical on-off switch and a receiver on the chassis is assigned to the motor circuit.Type: GrantFiled: May 19, 1998Date of Patent: September 26, 2000Assignee: Wolf-Gerate GmbH Vertriebsgesellschaft KGInventor: Gregor Wolf
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Patent number: 5937623Abstract: In an accumulator-powered lawn mower, the battery (10) providing power to the electric motor is accommodated in a battery housing which can be inserted into a battery compartment (28) of the lawn mower chassis. For charging purposes, the battery can be removed from the compartment and placed into a charger having a corresponding compartment with electrical contacts. On the upper side, the battery housing has a handle (12) which can pivot about a horizontal spindle (16) and is coupled to a locking mechanism (22) which engages a set of corresponding interlocking recesses (24) when the handle is folded down. Support is provided at the bottom of the compartment, preferably in the form of springs (30).Type: GrantFiled: May 7, 1998Date of Patent: August 17, 1999Assignee: Wolf-Gerate GmbH VertriebsgesellschaftInventor: Gregor Wolf
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Patent number: 5317806Abstract: One arm (30) of the pruning shears is connected via a swivel joint to the end of a guide handle. The swivel joint has a hinge pin (32) the axis of which intersects the axis of the handle at a right angle and is on a line with the guide groove of a cable pulley (24) which is mounted between fork arms (20) which protrude laterally from the end of the handle. By means of a traction cable (48), the arms of the shears can be locked in any angular position of the swivel joint. A locking knob (36) presses the interlocking fork arms (26, 28) of the end of the handle or the arm (30) of the shears together, as a result of which they are fixed in position by friction.Type: GrantFiled: February 3, 1992Date of Patent: June 7, 1994Assignee: Wolf-Gerate GmbH Vertriebsgesellschaft KGInventors: Peter Held, Helmut Weid
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Patent number: 5272810Abstract: In garden shears of this type, the anvil and/or the cutter are adjustable with respect to the cutting edge of the blade. For this purpose, the anvil has slots which may be linear or curved and are set at an angle with respect to the cutting edge. These slots serve as guidance for anvil bushings which are slidably disposed in the slots. Together with screws which are threaded into the bushings, a clamping connection is produced between the anvil and the shear arm. In the cutting direction there is provided, in every position, a locked support via the anvil bushings in the guide slots.Type: GrantFiled: July 23, 1992Date of Patent: December 28, 1993Assignee: Wolf-Gerate GmbH Vertriebsgesellschaft KGInventor: Gebhard Orthey
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Patent number: 5263254Abstract: In garden shears the locking device which holds the shear grips in closed position against the force of an opening spring is developed as a slide grip which lies free both on the top and on the bottom of the one hand grip so that this slide can be actuated by the thumb of both the right hand and the left hand without it being necessary also to use the other hand. The slide grip has spring detents which cooperate with indentations in said one hand grip.Type: GrantFiled: August 28, 1992Date of Patent: November 23, 1993Assignee: Wolf-Gerate GmbH Vertriebsgesellschaft KGInventor: Gebhard Orthey
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Patent number: 5243762Abstract: A garden shears is provided with replaceable knives mounted on elongated grips which are connected at a pivot joint that is constructed of a steel bushing that takes up radial loads (shear and flexure). Axial loads are taken up by a screw bushing which passes through the steel bushing and a joint screw threadably engaged with the screw bushing. Both the joint screw and the screw bushing have widened shallow heads with slightly convex surfaces that pass into surfaces of the shears. The replaceable knives are supported at the rear by extensions of the respective grips in a manner such that the knives are not required to take up bending moments.Type: GrantFiled: August 28, 1992Date of Patent: September 14, 1993Assignee: Wolf-Gerate GmbH Vertriebsgesellschaft KGInventor: Gebhard Orthey