Patents Examined by Jeffrey L. Thompson
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Patent number: 4951972Abstract: The invention relates to a method and apparatus suitable for angularly adjusting an attachment member to be sealed to a bore, for example a wellhead body (2) in the bore of a conductor (4). The attachment body (2) is to be sealed through the intermediary of a housing (6) and a metal-to-metal wedge seal. A support ring (14) encircling the external peripheral surface of the housing (6) is movable between two axially spaced positions on the peripheral surface, and movable pins are provided to maintain the support ring (14) in a first, out-of-the-way position until the housing (6) is positioned in the bore (4) mouth, the pins (9) being releasable to permit axial movement of the annular support member ring (14) from the first position towards a second position in which the member body (2) is in direct contact with the bore mouth.Type: GrantFiled: July 20, 1989Date of Patent: August 28, 1990Assignee: Cooper Industries, Inc.Inventors: Brian Macintyre, Frank Close, Sean McAvoy
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Patent number: 4947823Abstract: An arrow rest includes a holder for an arrow shaft connected to a base support by a resilient post flexible in all directions normal its longitudinal axis.Type: GrantFiled: November 14, 1988Date of Patent: August 14, 1990Assignee: BrowningInventor: Marlow W. Larson
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Patent number: 4947938Abstract: A machine for cutting holes in golf course greens having a threaded drive shaft, a motor to rotate the drive shaft, a sod cutter at the bottom of the drive shaft and adapted to rotate with the drive shaft, a clutch that can be engaged and disengaged with the threads on the drive shaft, the clutch mounted on the upper end of an ejector cylinder concentrically encasing the drive shaft and adapted to effectively move downwardly when the clutch is engaged and to float free when the clutch is disengaged, supports for the plug ejector cylinder which allow the ejector cylinder to move along the axis of the drive shaft, and an ejector plate mounted at the bottom of the drive shaft and adapted to fit inside the cutter and to effectively move downwardly through the interior of the cutter when the clutch is engaged, in order to drive out the plug of turf and dirt inside the cutter.Type: GrantFiled: July 8, 1988Date of Patent: August 14, 1990Inventors: James E. Fricke, Ivan L. Stoltzfus
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Patent number: 4945996Abstract: A farm or garden implement capable of raking or soil conditioning as desired comprising a frame movable along the ground as with wheels, a deck for raking having replaceable resilient tines and a deck for soil conditioning having rigid tines. The raking deck and the soil conditioning deck are separate decks which may be interchangeably coupled to the frame. When mounted in the frame, each deck may be remotely raised or lowered. The soil conditioning deck further has a blade extending between the sides of the deck which is vertically adjustable. The raking deck also has a release grid which permits release of leaves and the like when the tines are full, such release possible without interruption to the raking. The implement may be attached to a vehicle by a hitch.Type: GrantFiled: December 12, 1988Date of Patent: August 7, 1990Inventor: Charles B. Codding
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Patent number: 4945997Abstract: A foldable agricultural implement for use in a towed relationship with a tractor, wherein a pair of outboardly wheeled implement frames or wings carrying ground working tools are rotatably and pivotally supported at their inboard ends by a wheeled rear carrier. The implement frames are connected to the rear carrier by ball and socket joint assemblies and are pivotally and rotatably connected to a towing means by a twin tongue assembly, adapted so that the work performing means are capable of maneuvering and closely following the contours of a field and folding forward and elevating to provide ground clearance for transport.Type: GrantFiled: August 16, 1989Date of Patent: August 7, 1990Inventor: Raymond A. Adee
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Patent number: 4944355Abstract: In general, the remote control of a caster wheel assembly on a farm implement such as a crop sprayer of the type including a boom rotatable between a transport position and a field position is a complicated operation. In the transport position, the wheel assembly should be fixed, i.e. non-castering and in the field position the wheel assembly should caster freely. A relatively simple apparatus for effecting caster wheel assembly control includes a frame mounted on the boom, a hydraulic cylinder on the frame, and a linkage connected to the piston rod of the cylinder and releasably connected to an arm on the shaft carrying the wheel assembly, whereby initial extension of the piston rod moves the wheel assembly to a turning position, full piston rod extension causes release and thus free castering of the wheel assembly in the field position, and retraction of the piston rod causes re-engagement of the wheel assembly by the linkage to lock the wheel assembly in the transport position.Type: GrantFiled: July 3, 1989Date of Patent: July 31, 1990Assignee: Brandt Industries, Ltd.Inventor: John Karchewski
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Patent number: 4944354Abstract: The invention relates to an three-point coupling device (3) for connecting a tractor to an implement (4). Two lower hitch arms (5, 5a) have been provided with catching hooks (7, 7a). An upper hitch arm (8) has also been provided with a catching hook (11). The lower hitch arms (5, 5a) may be raised or lowered by a power drive via lifting bars (10, 10a) and lifting arms (9, 9a). The upper hitch arm (8) is suspended from a holding device (20, 20a) which is associated with the lifting bars (10, 10a). As a result, the upper hitch arm (8) may be moved jointly with the lower hitch arms (5, 5a) upon actuation of the power drive which moves the lifting arms (9, 9a) and the lifting bar (10, 10a). It is no longer necessary for the tractor driver to hold the upper hitch arm (8) himself and place it on the upper coupling point (14) of the implement (4).Type: GrantFiled: April 6, 1989Date of Patent: July 31, 1990Assignee: Jean Walterscheid GmbHInventors: Hans Langen, Norbert Fartmann, Herbert Coenen
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Patent number: 4944352Abstract: A sod harvester in which sod is cut, conveyed upwardly, and then travels downwardly over a floppy conveyor and falls into a roll forming enclosure formed by a bottom conveyor and a vertical conveyor. The floppy conveyor swings downwardly at the start of roll forming, to reduce the free fall of the sod, and swings upwardly as the roll grows. When the roll is formed, the bottom conveyor is unlatched and tilts downwardly to discharge the roll, at the same time pulling into cocked position a core tube injector arm. When the roll discharges, the bottom conveyor snaps upwardly, releasing the core tube injector arm which injects a fresh core tube into the roll forming enclosure. The sod is rolled with its grass side outwardly to facilitate laying and to protect the grass roots. A tray on a cart at the end of the harvester receives the discharged roll and can convey it to either side of the cart.Type: GrantFiled: December 4, 1989Date of Patent: July 31, 1990Assignee: Brouwer Turf Equipment LimitedInventors: Gerardus J. Brouwer, Henry Zwambag
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Patent number: 4942927Abstract: A lifter wheel filler spoke assembly designed for permanent installation on a lifter wheel. The filler spoke assembly is comprised of a ring plate with filler spokes equally spaced about the circumference of the ring plate, with the ring plate being provided with a plurality of slots used for attaching the assembly to the lifter wheel. The slots allow the filler spoke assembly to be rotated between a closed and open position.Type: GrantFiled: June 27, 1989Date of Patent: July 24, 1990Inventor: Craig P. Halfmann
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Patent number: 4942928Abstract: A moldboard plow with a bidirectional moldboard which includes a moldboard frame that can turn by use of a reversal mechanism which also serves as a tilting mechanism. Included is a hitching frame which has a central pole and hitching plates, a moldboard frame having a guide member extending along the longitudinal axis thereof, a set of bidirectional moldboards fastened to the hitching frame by a pivot pin for reversal of the plow so that the bidirectional moldboards cuts into the soil on a right and left side of the plow, a tilting mechanism for tilting said hitching frame and a reversing mechanism connected to the guide member of the moldboard frame for moving the moldboard frame and the set of bidirectional moldboards to the right side and left side of the plow.Type: GrantFiled: October 24, 1988Date of Patent: July 24, 1990Assignee: Industrias John Deere, S.A. de C.V.Inventor: Pompeyo B. Gomez
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Patent number: 4938295Abstract: An implement hitch assembly serves to aggregate two machines. The machines are echeloned in the working position or in tandem in a transport position when moving from one field to another. The hitch includes a transverse draw bar, connected to a tractor. On the transverse draw bar, provision is made for a pull rod of a front farm machine, which is mounted thereon by a carriage. The hydraulic drive installed on the transverse draw bar is intended for moving the carriage along the transverse draw bar. A lever pivotably connected to the pull rod of the front farm machine carries an arcuate beam coupled therewith at the front end thereof by a pivot. The rear end of the arcuate beam rests on a support wheel with a suspension. On the vertical axis of the suspension there is mounted a clevis of a rear farm machine. The hydraulic drive connected with the pull rod of the front farm machine moves the latter along as it transfers both machines to one of the positions hereinabove identified.Type: GrantFiled: December 22, 1988Date of Patent: July 3, 1990Inventors: Tiit R. Marrandi, Juri R. Olt
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Patent number: 4936391Abstract: A rotary tiller device for tilling around trees and other similar obstacles comprises a rotary tilling head with a plurality of tines extending slightly outwardly, downwardly and forwardly from a support which rotates around a vertical axis of the head. A central plate rests upon the ground and defines a tilling depth of the tines. A cover prevents the support from damaging the tree. A mounting system for mounting the unit on the belly of a yard tractor includes a pair of rails mounted in place of the removed belly mower and a hydraulic fluid reservoir tank which slides into position on the rails and defines a support for the tiller head. A linkage between the tank and the tiller head includes a six-bar lever system mounted upon a pivotal plate.Type: GrantFiled: April 11, 1989Date of Patent: June 26, 1990Inventor: G. Douglas Cameron
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Patent number: 4936392Abstract: A road shoulder grading attachment movably attachable to the bucket of a front-end loader is provided. The attachment includes an upright grading blade attachable to the bucket of the loader in an angled position forward of the bucket. The attachment also includes support structure for rigidly attaching the blade to the bucket and means for raising the blade out of the path of the bucket so that when the attachment is mounted on the bucket of the loader, normal use of the bucket is possible.Type: GrantFiled: November 28, 1988Date of Patent: June 26, 1990Inventor: Kevin Kitchin
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Patent number: 4934463Abstract: It takes high skill to achieve maximum efficiency of construction equipment under the ever changing working conditions. The automatic implement control system helps maximize operator efficiency and convenience by allowing a predetermined angle, lift and/or tilt position of a work implement (40) to be stored in the memory of the controller (3). In operation, the implement (40) may be moved from that stored predetermined position to perform other functions. In an automatic mode, the controller (3) can return the implement (40) to that predetermined position at any time during the work cycle. A valve (15-70) is provided for selectively switching between manual and automatic modes.Type: GrantFiled: August 7, 1989Date of Patent: June 19, 1990Assignee: Caterpillar Inc.Inventors: Shuji Ishida, Shoji Tozawa, Shunji Asao, Masashi Musha, Kenichi Yamamoto, Kazuhiko Eigetsu, Kyoichi Oguri, Izuru Morita, Yasunori Matsunaga, Naoto Kozuki, Shinichi Amemiya
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Patent number: 4934461Abstract: A peanut vine digging and vine inverting apparatus is disclosed consisting of a plurality of diggers in the form of modified discs; a tap root cutter for each row of diggers and means for positioning the vines on the ground with the peanuts upwardly to be sun dried.Type: GrantFiled: May 10, 1989Date of Patent: June 19, 1990Inventors: Cecil J. Spears, Sr., Larry Spears, Cecil J. Spears, Jr.
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Patent number: 4934464Abstract: A tool for cutting elongated turf strips has a cutting head secured to lateral stabilizing members. The cutting head is a rectangular box-shaped member having forward peripheral cutting edges. The stabilizing members ride on the turf surface to ensure a uniform cutting depth of the cutting head. An upwardly and rearwardly directed handle is secured to the top wall of the cutting head to facilitate moving the cutting head through turf to cut a strip of sod therefrom.Type: GrantFiled: September 19, 1989Date of Patent: June 19, 1990Inventor: Robert L. Shields
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Patent number: 4934462Abstract: A control device for use in a dual function machine includes a first disconnecting device for connection between a first operator's control knob and at least one control valve usable for controlling a first function of the machine. A second disconnecting device is provided for connection between a second operator's control knob and at least one second control valve usable for controlling a second function of the machine. The disconnecting devices are arranged for mounting in actuating relationship to a swivel-type operator's seat, the first disconnecting device being actuated for disabling the second function when said seat is in a first position for operating the first function and the second disconnecting device being actuated for disabling the first function when the seat is in a second position for operating the second function.Type: GrantFiled: August 21, 1989Date of Patent: June 19, 1990Assignee: J. I. Case CompanyInventors: Andre' Tatara, Robert McCaig, Jose Andiano
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Patent number: 4932476Abstract: A level indicator for a disk harrow or the like having a motorized on-the-go leveling adjustment. A small diameter flexible cable is attached to the spring retainer which bears against one end of the coil spring on an adjustable link structure located between pivoting hitch structure and the adjustable ground wheels. The opposite end of the cable is attached to a slide which is free to move vertically in a bracket fixed to the motor mounting bracket. The weight of the slide maintains tension on the cable and as the motor is activated to move the spring retainer relative to the motor mounting bracket, the cable moves the slide vertically to provide an indication of the leveling adjustment. The consistent relationship between the spring retainer and the motor bracket at a given adjustment position provides an easy to read indication even though the entire leveling system may be moving relative to the machine frame.Type: GrantFiled: September 1, 1989Date of Patent: June 12, 1990Assignee: Deere & CompanyInventor: Kevin W. Hoehn
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Patent number: 4930581Abstract: A guidance system for an agricultural implement pulled by a tractor is disclosed. The implement, such as a cultivator or planter, has ground-engaging discs mounted to a frame or toolbar and includes a control hitch mounted to the conventional three-point tractor hitch. The toolbar of the implement is mounted to the control hitch for rotation about a vertical axis. A first sensing device senses the position of the implement relative to a desired lateral position, such as the distance from a crop row, and generates a signal representative of the displacement of the implement from that desired lateral position. The sensing device actuates a hydraulic circuit to turn the implement toolbar toward the desired position; and the discs steer the implement toward the desired lateral position. A second sensing device senses the angular position of the implement relative to the control hitch.Type: GrantFiled: May 10, 1988Date of Patent: June 5, 1990Assignee: Fleischer Manufacturing, Inc.Inventors: Mathew W. Fleischer, John C. David
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Patent number: RE33238Abstract: Disclosed herein is a powered cultivating tool or the like which includes a prime mover disposed within a housing, an output shaft extending from .[.said.]. .Iadd.the .Iaddend.housing having a pinion fixed thereto, .[.said.]. .Iadd.such .Iaddend.pinion being placed in meshing engagement with a gear having a first roller thereon offset from the axis of rotation of the gear which engages a cam follower operatively connected to a cultivating implement such as a tine so that the implement displays an oscillatory pendulum-like motion about a vertical radial line extending from an axis rotation of the gear.Type: GrantFiled: April 3, 1987Date of Patent: June 26, 1990Assignee: Hawaiian Motor Co.Inventors: Lee A. Moulton, Frederick Siegler