Spring Pressed Patents (Class 144/247)
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Patent number: 8931528Abstract: A stock feeder for woodworking equipment includes a base, a cross clamp, a horizontal bar unit, a vertical bar unit, a feeding unit, and an electrical unit. The electrical unit has an electrical unit main body and a variable-frequency drive. The electrical unit main body has a first housing, a plurality of heat dissipation grooves provided on the outer periphery of the first housing, and a power fan which is independently mounted on a top portion of the first housing and in communication with the heat dissipation grooves. The variable-frequency drive has a second housing, a variable-frequency circuit sealed in the second housing, and a control panel exposed outside the second housing. The second housing has an outer surface provided with a plurality of heat dissipation slots corresponding in position to and in communication with the heat dissipation grooves of the electrical unit main body.Type: GrantFiled: April 19, 2013Date of Patent: January 13, 2015Inventor: Tai-Yuan Hsiung
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Publication number: 20110088815Abstract: A rotary type feeding device for a woodworking machine includes a support post unit including a base adapted to be mounted on a worktable, and a pivot shaft disposed uprightly on the base. A cantilever unit includes a cantilever rotatable about the pivot shaft and having a pivot end proximate to the pivot shaft, and a free end distal from the pivot shaft, and a return member. A feeding wheel unit includes a feeding wheel disposed pivotally on the free end of the cantilever. The feeding wheel has a diameter that is not smaller than 250 mm. The return member of the cantilever unit is adapted for biasing the feeding wheel of the feeding wheel unit to pivot toward a cutter.Type: ApplicationFiled: October 19, 2009Publication date: April 21, 2011Inventor: Chin-Chi Lin
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Publication number: 20100218852Abstract: A log-feeding device comprises two relatively movable units each carrying automatically self-centering chain-engaging sprockets, the chains being formed of flights provided with channels having serrations and knife-edges for grasping the bark surface of a log being fed therethrough.Type: ApplicationFiled: February 25, 2010Publication date: September 2, 2010Inventor: Jean-Guy Bouchard
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Patent number: 7140089Abstract: One embodiment of the present invention is a compact, low-cost, lightweight, versatile and easy-to-operate, processor-controlled carving and multi-purpose shaping device (“PCCMPS machine”). The PCCMPS machine that represents one embodiment of the present invention is configured, in part, similarly to common, commercially available portable wood planers and ubiquitous laser and ink-jet computer printers, with work pieces fed into the PCCMPS machine in a horizontal direction. The PCCMPS machine includes a motor-powered cutting head that can power detachable bits to drill, cut, shape, and rout a work piece under processor and computer control. The cutting head may be translated, under processor control, back and forth across the surface of the work piece in a direction perpendicular to the direction in which the work piece is fed into the PCCMPS machine and moved by motor-powered rollers.Type: GrantFiled: September 18, 2004Date of Patent: November 28, 2006Assignee: LHR Technologies, Inc.Inventors: Christopher Scott Lovchik, James David Jochim, Dennis Girard Lawler
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Patent number: 6705455Abstract: A feeding roller includes a hub member mounted to rotate with a driven shaft, a plurality of angularly displaced anchored seat members disposed on a surrounding outer wall of the hub member and defining anchored areas, a surrounding workpiece contacting member surrounding and spaced apart from the hub member so as to be brought into frictional contact with a workpiece, a plurality of force transmitting members disposed on an inner annular wall surface of the surrounding workpiece contacting member and forming secured areas which spacedly confront and lead the anchored areas, respectively, and a plurality of coupling and biasing members, each interposed between the secured area and the corresponding anchored area. Rotation of the hub member is transmitted to the surrounding workpiece contacting member to bring the surrounding workpiece contacting member into contact with the workpiece so as to feed the workpiece with an even and smooth compression force.Type: GrantFiled: September 5, 2002Date of Patent: March 16, 2004Inventor: Ching-Chi Lin
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Patent number: 6405769Abstract: Material-recovery apparatus for obtaining usable, uniformly-dimensioned blanks from scrap. Apparatus is small, and economical in manufacture and operation, using only a single lifting jack and vertical support unit to support the tool-and-feed-roller housing. Feed-roller tensioning units for exerting downward force on rollers have a spring-biased bell-crank mechanism.Type: GrantFiled: July 27, 2001Date of Patent: June 18, 2002Inventor: Thom L. Labrie
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Patent number: 6128989Abstract: A sawing apparatus comprises a base structure including bed rolls defining a horizontal bed plane for supporting a workpiece, a saw arbor carrying at least one saw for rotation about the central axis of the saw arbor, and a carriage supporting the saw arbor so that its central axis extends horizontally above the bed plane. A drive mechanism selectively raises and lowers the carriage relative to the base structure.Type: GrantFiled: May 3, 1996Date of Patent: October 10, 2000Assignee: Aaron U. JonesInventors: Aaron U. Jones, Edward Komori
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Patent number: 6065513Abstract: In the grapple of a tree harvesting machine, the feeding means (14, 15) and/or delimbing means (1, 2) are pairwise coupled in a way that the movement of the actuator (6) is transmitted to one swinging arm (5) of the pair directly and to the other one by means of a drive arm (7) and a torsion spring (18).Type: GrantFiled: January 15, 1999Date of Patent: May 23, 2000Assignee: Plustech OyInventor: Marko Paakkunainen
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Patent number: 5988230Abstract: A device for consolidating compositions contained in partially filled dual chamber dispensing cartridges includes a body having a pair of passages, and first and second couplers for connecting the body to first and second dual chamber dispensing cartridges. Once the device is connected to two cartridges, an applicator is connected to one of the cartridges and is used to expel any remaining compositions in such cartridge to chambers of the other cartridge. The contents of several partially empty cartridges can be consolidated in this manner so that a subsequent dispensing operation need not be interrupted to replace cartridges.Type: GrantFiled: July 18, 1997Date of Patent: November 23, 1999Assignee: Minnesota Mining & Manufacturing Co.Inventors: Kevin L. Black, Frederick J. Turk, Bruce R. Broyles, Darin J. Meyertholen, John W. Dubbe, James D. Christoff
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Patent number: 5799854Abstract: A workpiece feeding device includes a housing with a vertical support wall which has shaft mounting sleeves. First shafts extend horizontally and respectively through the sleeves. Two bearings are provided in two ends of each sleeve between the first shaft and the sleeve and are made of a powder-metallurgy process. Swing seats are mounted respectively to rear ends of the sleeves and have vertical seat walls which, in turn, have first holes for insertion of the sleeve and second holes for insertion of second shafts. Bushings project from the seat walls and have auxiliary seats which extend to the sleeves for connection therewith. As such, the machine can operate stably during the workpiece feeding operation.Type: GrantFiled: March 26, 1997Date of Patent: September 1, 1998Inventor: Ching-Chi Lin
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Patent number: 5692549Abstract: A chipper for chipping wood material has first and second feed rollers at an inlet. The first and second feed rollers are secured to a frame of the chipper with the axes of the feed rollers being parallel and spaced apart. The first and second feed rollers are free to move in a direction generally transverse to the axes. The feed rollers are biased toward one another. A motor drives at least one of the feed rollers to rotate the feed roller about its axis of rotation.Type: GrantFiled: May 17, 1996Date of Patent: December 2, 1997Assignee: Vermeer Manufacturing CompanyInventor: Thomas Alan Eggers
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Patent number: 5389060Abstract: The present invention relates to a cardboard notching machine which mainly consists of a body, a transmission group, a roller group, an adjustment group, and a forming group. The roller group is driven by the transmission group so as to feed in cardboards for notching and the forming group has forming cutters for notching cardboards, allowing the notching of cardboard to be performed and completed in one step on the notching machine according to the present invention. Due to the adjustment of gaps between the rollers of the roller group by means of the adjustment group, the forming cutters form notches in a vibrating manner which gives the notches more accurate depth and more smooth surfaces.Type: GrantFiled: December 21, 1992Date of Patent: February 14, 1995Assignee: Guan Tai Machinery Co., Ltd.Inventor: Wu Huo-Mu
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Patent number: 5373880Abstract: A method of continuously processing chopsticks (35), the outer shape of which is defined by two mutually parallel surfaces and two opposing, plane, oblique surfaces (5, 6) inclining towards one another by the same inclination seen relative to a common plane of symmetry. The chopsticks (35) are advanced in the longitudinal direction while passing pairs of processing implements (37, 38 and 39). During the advancing movement, one oblique surface (5) of the chopsticks (35), the common longitudinal plane of symmetry, and the second oblique surface (6) are aligned one by one substantially parallel to a common plane of alignment (50) extending in the direction of advance (36) and are processed by a pair of processing implements (37, 38 and 39) associated with each aligning position. The advance is carried out by continuously rotating friction rolls (8 to 34) engaging the mutually parallel surfaces of the articles.Type: GrantFiled: June 4, 1993Date of Patent: December 20, 1994Assignee: Stormax International A/SInventor: Ole Koster
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Patent number: 5284192Abstract: An automatic planning machine for cutting a surface of a workpiece which includes: a base portion on which the workpiece is to be laid; a feeding device for feeding the workpiece; a rotatable cutter block arranged on one side of the base portion with a rotary shaft substantially in a vertical direction; and a reference base disposed vertically on the other side of the base portion; wherein an upper side of a workpiece feeding path between the reference base and the cutter block is opened. A height of the reference base is lower than that of the cutter block and a top surface of the reference base is held horizontally. The automatic planning machine may comprise an auxiliary reference base which is detachably mountable on a top surface or a side wall of the reference base.Type: GrantFiled: July 31, 1992Date of Patent: February 8, 1994Assignee: Ryobi LimitedInventors: Mitsumasa Sato, Tatsuya Wada, Kouichi Miyamoto
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Patent number: 5176190Abstract: An automatic planing machine has two feed rollers on one side of the machine and a stool for holding two pressure rollers which are pressed toward the feed rollers with a pressure force smaller than a pressure force of the feed rollers. The machine has a compact driving mechanism for rotating the feed rollers and further has a feed mechanism for move the stool and a casing for holding the feed rollers toward and away from each together with back-lash preventing means.Type: GrantFiled: August 29, 1991Date of Patent: January 5, 1993Assignee: Ryobi LimitedInventors: Kouichi Miyamoto, Mitsumasa Sato, Tatsuya Wada
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Patent number: 5174348Abstract: An automatic planning machine has a vertical stationary stool functioning to cut a workpiece flatly and a vertical movable stool opposed to the stationary stool. The stationary stool has a plurality of feed rollers while the movable stool has a plurality of pressure rollers. A pressure force by the pressure rollers can be selectively changed over thereby to push the workpiece on the stationary stool at the time of flat work and to push the workpiece on the movable stool at the time of thickness determination work.Type: GrantFiled: August 29, 1991Date of Patent: December 29, 1992Assignee: Ryobi LimitedInventors: Kouichi Miyamoto, Mitsumasa Sato, Tatsuya Wada
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Patent number: 5123464Abstract: A board pulling device for use with a powered table saw or similar woodworking tool. The puller is readily removable and attachable to most similar tools and uses a novel springing roller to hold the work piece against the pulling roller. The puller is mounted so that it can be moved out of the path of the piece being sawed, or back into place to pull the work piece through the tool. Further, if desired, the entire device is readily removable from the tool.Type: GrantFiled: June 20, 1991Date of Patent: June 23, 1992Inventor: Harry Van Gelder
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Patent number: 4989653Abstract: An edging apparatus is provided which permits fast, efficient edging of materials, such a plexiglass, masonite or wood, on a horizontal plane. The edging apparatus includes a material support surface, a motor and cutter, a fence and an automatic feed assembly. The cutter motor is mounted on a sliding assembly to permit linear movement of the cutter.Type: GrantFiled: February 26, 1990Date of Patent: February 5, 1991Inventor: Philip A. Angus
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Patent number: 4976298Abstract: An anti-kickback and hold down device having provision for mounting on and removal from a saw availed of for ripping material, primarily wood, and including a spring pressed wheel to engage the material being ripped, thus enabling ripping of wood of widely varying thickness, and preventing reverse movement of the wood caused by the saw itself, and effected by ratchet elements controlling the wheel operation, which are able to be positioned in varied longitudinal alignment, as well as to release or disable the ratchet at will, axial alignment of the wheel providing for holding the material being ripped, against a fence or like guide during the ripping operation.Type: GrantFiled: May 17, 1990Date of Patent: December 11, 1990Assignee: Leichtung Inc.Inventor: Jeremy H. Gibson
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Patent number: 4696392Abstract: An anti-toggling, constant-contact cage roll assembly is provided for movement of corrugated box blanks along a belt. In one embodiment, the cage roll assembly includes a series of four rollers that are mounted to a bar spring-biased away from a frame, in which the bar is pivotally mounted at each end to an associated lever arm, each of which is in turn pivotally mounted to the frame to form a modified four-bar linkage, with a compliant mount for one lever arm, the mount for the other lever arm being fixed to the frame to permit limited canting of the roller-carrying bar to accommodate multiple folded layers of corrugated material. The subject cage roll assembly prevents the prior art type of toggling of pairs of rollers into an almost vertical position as the box blank moves between the rollers and the belt and thus prevents jamming. In one embodiment, each of the lever arms carries an adjustable stop at the free end for positioning the bar above the belt which carries the box blank.Type: GrantFiled: May 16, 1986Date of Patent: September 29, 1987Assignee: Specialty Equipment CorporationInventor: Donald P. Chisholm, Jr.
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Patent number: 4662413Abstract: A roller (10) drives a workpiece (not shown, but to the right) along a fence. An electric motor (16) rotates the roller (10) through chains (18, 19) and a double sprocket (20) freely rotatable on an upright shaft (22). The roller (10) is rotatable in relation to an arm (26). The arm (26) is pivotable in relation to the shaft (22). A coil spring (30) around the shaft (22) is fastened at a lower end to a stop (32) and at an upper end of a collar (34), and urges the roller (10) towards the fence. The force of the spring (30) makes the roller (10) engage a wide workpiece strongly, and so increases its tractive effect.Type: GrantFiled: October 28, 1986Date of Patent: May 5, 1987Assignee: Wadkin plcInventor: Reginald K. Bater
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Patent number: 4594815Abstract: A machine for simultaneously surfacing the opposite faces of workpieces with abrasive belts wider than the workpieces, which includes mechanism for feeding workpieces of different thicknesses simultaneously, and centering mechanism for engaging the surfaces of the workpieces as they pass through the machine.Type: GrantFiled: December 7, 1984Date of Patent: June 17, 1986Assignee: Timesavers, Inc.Inventors: Maurice G. Mickelson, Herman J. Mutzberg
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Patent number: 4583576Abstract: A device for feeding a tree trunk with lateral and vertical centering into a machine processing round timber. Heretofore, the feeding of the log into the machine has taken place manually, which is exceedingly heavy work. The invention comprises a feed gutter and a spring wheel both serving as points of support, at least one feed wheel, and opposite thereof a carrying wheel.Type: GrantFiled: July 25, 1984Date of Patent: April 22, 1986Inventor: Kauko Rautio
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Patent number: 4499933Abstract: A manual work-feeding device and guard body for a shaping machine. The device provides direct access to the cutting tool and further provides for in-process visual inspection while protecting the operator from injury.Type: GrantFiled: July 21, 1982Date of Patent: February 19, 1985Inventor: Monty R. Thompson
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Patent number: 4325421Abstract: A method and apparatuses are disclosed for making shingles. The method consists of clampingly holding a block of material to be cut and conveying such block while it is clamped along a selected path through the clamping mechanism and causing relative movement between two cutting means which are inclined relative to one another to firstly cut a shingle from the block tapering in one direction and followed by a second shingle tapering in the opposite direction. The apparatus includes means for receiving and clampingly holding blocks as they are fed in sequence thereto and means to feed the block while it is clamped.Type: GrantFiled: November 30, 1979Date of Patent: April 20, 1982Inventors: Michael Janovick, Donald F. Hammond, Winston Harvey
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Patent number: 4078592Abstract: A log feed mechanism that will longitudinally move successive logs toward the cutting and/or chipping mechanisms of a sawmill while holding the successive logs along a prescribed path of movement such that the successive logs may be efficiently sawed into standard size lumber. The feed mechanism includes a roller device by which the successive logs may be rotated about their longitudinal center axes in order to determine the most desirable position for the log to be in when cut into lumber. The successive logs are fed onto a first conveyor assembly that performs the functions of centering the successive logs and moving the logs in a forward direction while maintaining the centered condition. Press rolls are provided over the first conveyor on either side of a rosser. The rosser operates to remove knots and enlarged butts of successive logs to provide a relatively smooth surface for gripping by a downstream second conveyor.Type: GrantFiled: December 20, 1976Date of Patent: March 14, 1978Inventor: George M. Standal
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Patent number: 4078590Abstract: An apparatus for reducing whole trees having attached limbs and branches to chips wherein a power driven disc chipper is mounted on a frame and a tree or brush feeding and conditioning mechanism is driven at a coordinated feeding speed for feeding trees and tree parts into the chipper while folding projecting limbs and branches inwardly toward the trunk. A pair of power driven feed rolls, mounted for rotation about generally horizontal axes above and below a feed path, are supported for both coordinated generally vertical movement relative to the frame and for relative vertical movement, and power actuated means are provided for selectively varying the vertical spacing between the pair of feed rolls. The power actuated means are so arranged that when a squeezing action is applied, as to crush vertically projecting limbs, the upward force exerted by the lower roll exceeds the downward force exerted by the upper roll to reduce the frictional force exerted by any obstructing tree parts on the support platform.Type: GrantFiled: January 7, 1977Date of Patent: March 14, 1978Assignee: Morbark Industries, Inc.Inventor: Leward N. Smith