Class / Patent application number | Description | Number of patent applications / Date published |
056257000 | Reciprocating central cutter | 13 |
20080295478 | Synchronous drive for split sickle bars on harvester header - A drive arrangement for split sickle bar sections of a harvester having a long cutter bar such as a combine, swather, mower-conditioner or the like utilizes separate drives for each sickle bar section, and provides for synchronizing the movement of the sickle bar sections so that they reach the respective ends of the reciprocating path simultaneously. In one form series connected first and second hydraulic motors are used, and the first motor in the series connection is reduced in speed from that which would be obtained from the full flow of a pump, by passing a portion of the pump fluid flow to a flow line leading to the second motor, a bleed valve bleeds off a portion of the flow in the flow line to regulate the second motor speed and position to match the speed and position of the first motor in response to signals indicating the position of the sickle bar sections. The sickle bar sections are thus synchronized. | 12-04-2008 |
20090145096 | Offset epicyclic sickle drive for a header of an agricultural plant cutting machine - A compact epicyclic drive includes a pinion rotatable about a ring gear and an eccentric element fixedly connected to the pinion so as to be rotated thereby, a knife head bearing supported on and extending around the eccentric element, and a knife head assembly connected to a sickle knife assembly. The knife head assembly is configured so as to translate rotation of the eccentric element into sideward reciprocating movements of the sickle knife assembly, and to transfer forces resulting from the movements to a housing supporting the drive. Two of the drives can be utilized for reciprocatingly driving two of the sickle knife assemblies in opposite directions, such that the transferred forces will at least partially cancel one another. | 06-11-2009 |
20090145097 | Compact knife head assembly, bearing and eccentric for a sickle drive for a header of an agricultural plant cutting machine - A compact epicyclic drive includes a pinion rotatable about a ring gear and an eccentric element fixedly connected to the pinion so as to be rotated thereby, a knife head bearing supported on and extending around the eccentric element, and a knife head assembly connected in driving relation to a sickle knife assembly. The knife head assembly includes an element supported on and extending around the knife head bearing and configured so as to transfer sidewardly directed components of rotations of the eccentric element into sideward reciprocating movements of the sickle knife assembly. The eccentric element, knife head bearing, and knife head assembly are generally flat and axially coextensive, contributing to the compactness of the drive. The sickle drive is adapted to incorporated into or beneath a floor or pan of a header of an agricultural harvesting machine. | 06-11-2009 |
20130031887 | Weed cutter and chemical applicator - The present invention relates generally to an apparatus that chops off a weed at or below ground level and applies a small shot of herbicide to the freshly cut weed base. More particularly the present invention is a rechargeable, battery operated, solenoid driven, and hand held device with a herbicide reservoir on the handle and a reciprocating cutter blade with a directed herbicide spray nozzle at the base. | 02-07-2013 |
20130186053 | Pointed Sickle Blade for use in a Sickle Cutter System with Increased Ground Speed - In a sickle cutting system, it has been found that a significant increase in ground speed while maintaining an acceptable level of cutting efficiency as measured by the average stubble length can be obtained by a combination of one or more of the features where the cutting stroke is reduced from the conventional length of 3.0 inches to a value of the order of 2.0 inches; the length of the cutting edge of each knife blade is increased to a length greater than 2.2 inches; the width at the rear of the ledger surface of each guard is increased to greater than 1.0 inches; and the front edge of the blade is formed with an apex to shed crop material to one or other side of the apex. | 07-25-2013 |
20130192188 | Reduction in Cutting Inefficiency of a Sickle Cutter System - In a sickle cutting system, it has been found that a significant decrease in cutting inefficiency, which is measured by calculating the area of the cutting process where crop is not immediately cut but is instead pushed forwardly by engagement with a surface of the system, can be obtained by a combination of one or more of the features where the cutting stroke is reduced from the conventional length of 3.0 inches to a value of the order of 2.0 inches; the length of the cutting edge of each knife blade is increased to a length greater than 2.2 inches; the width at the rear of the ledger surface of each guard is increased to greater than 1.0 inches; and the front edge of the blade is formed with an apex to shed crop material to one or other side of the apex. | 08-01-2013 |
20130305679 | Adjustable Guard Assembly for a Sickle Knife - In a cutter bar having a upper and lower knife guards in cooperating pairs mounted on a support bar where each guard includes at least one point extending forwardly to define a channel therebetween in which the knife reciprocates, the upper knife guards are attached to an upper surface of the support bar by a compressible resilient pad between an under surface of the upper knife guard and the upper surface of the support bar, at least one hold down screw fastener engaged between the upper knife guard and the support bar which holds the upper knife guard on to the resilient pad and forms a fulcrum and at least one adjustment screw between the upper knife guard and the support bar behind the screw fastener so that adjustment of the screw increases an amount of compression of the compressible resilient pad. | 11-21-2013 |
20130305680 | Sickle Blade Shape for Use in a Sickle Cutter System with Increased Ground Speed - In a sickle cutting system, it has been found that a significant increase in ground speed while maintaining an acceptable level of cutting efficiency as measured by the average stubble length can be obtained by a combination of one or more of the features where the cutting stroke is reduced from the conventional length of 3.0 inches to a value of the order of 2.0 inches; the length of the cutting edge of each knife blade is increased to a length greater than 2.2 inches; the width at the rear of the ledger surface of each guard is increased to greater than 1.0 inches; and the front edge of the blade is formed with an apex to shed crop material to one or other side of the apex. | 11-21-2013 |
20130305681 | Sickle Guard Shape for Use in a Sickle Cutter System with Increased Ground Speed - In a sickle cutting system, it has been found that a significant increase in ground speed while maintaining an acceptable level of cutting efficiency as measured by the average stubble length can be obtained by a combination of one or more of the features where the cutting stroke is reduced from the conventional length of 3.0 inches to a value of the order of 2.0 inches; the length of the cutting edge of each knife blade is increased to a length greater than 2.2 inches; the width at the rear of the ledger surface of each guard is increased to greater than 1.0 inches; and the front edge of the blade is formed with an apex to shed crop material to one or other side of the apex. | 11-21-2013 |
20130305682 | Pointed Guard for Sickle Cutter System with Increased Ground Speed - In a sickle cutting system, it has been found that a significant increase in ground speed while maintaining an acceptable level of cutting efficiency as measured by the average stubble length can be obtained by a combination of one or more of the features where the cutting stroke is reduced from the conventional length of 3.0 inches to a value of the order of 2.0 inches; the length of the cutting edge of each knife blade is increased to a length greater than 2.2 inches; the width at the rear of the ledger surface of each guard is increased to greater than 1.0 inches; and the front edge of the blade is formed with an apex to shed crop material to one or other side of the apex. | 11-21-2013 |
20140090346 | Cleaning Flaps For A Center Knife Drive For A Sickle Of A Plant Cutting Machine - A center knife drive for a sickle of a plant cutting machine having an upwardly facing cover and at least one output element reciprocatingly movable by the drive above the cover for moving a knife of the sickle in a sideward reciprocating cutting action, including at least one cleaning flap in connection with the output element positioned and configured for reciprocating forward and rearward movement thereby, disposed above the cover and configured for cleaning loose material therefrom during the movement and for pushing the loose material from the cover to accommodate upward movement of the drive within a space below or in a floor of the machine, clearing the material from the path of the output element, and improved heat dissipation. | 04-03-2014 |
20160066503 | Cutter Guard Assembly for Knife Drive of an Agricultural Farm Implement - A cutter guard assembly for a knife drive of an agricultural farm implement is provided. The cutter guard assembly includes a cutter bar assembly, a window frame, and a floor sheet. The cutter bar assembly has a cutter bar and a reciprocating knife assembly operatively connected to a knife drive. The window frame is rigidly attached to the cutter bar. The window frame includes an opening through which a knife arm of the reciprocating knife assembly extends through. The floor sheet extends rearwardly from the cutter bar and pivots relative to the window frame. | 03-10-2016 |
056258000 | Co-axial wheels | 1 |
056262000 | Cam drive | 1 |
056263000 | With lever | 1 |
20090272091 | Manual lawn mower - A unique lawn mower that relies on operator's power to cut the grass, without polluting the environment or causing health hazards. It comprises of a plurality of shear blades held together by fasteners and springs. The grass cutting is accomplished by shearing entrapped grass between the shear blade notches. The rotational motion of the drive wheel is converted into back-and-forth translational motion by a unique design. The back and forth motion is used to slide one shear blade over the other. The height of grass to be cut can be changed by an adjustment handle, which resides on support links. The support links carry a rear wheel that provides stability to the mower and provide bearing surface for the drive tube generating the translational motion. | 11-05-2009 |