Bizarre Patents
A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 7412769 | Chain saw chain tensioning and braking system Disclosed is a chain saw which includes chain saw chain tensioning and braking systems. Tensioning and braking are effected by the presence and control of longitudinal slits in an elongated support which provides a continuous chain channel guide in its outer circumf... | 08/19/2008 |
| 7143916 | Connection device for interconnecting a grid element to lower frame assembly of a blanking tool A connection device is provided for interconnecting a grid element to a support rail for a lower blanking tool of a carton die cutting machine. The connection device includes a generally flat base having first and second sides and an inner surface for engaging the g... | 12/05/2006 |
| 6964101 | Lightweight guide bar for chainsaw A lightweight guide bar formed from a heavy material, e.g., steel, and having a center section, e.g., a cavity of reduced material and fitted with a lighter weight insert, e.g., aluminum plate. The center section includes a flange to which the aluminum plate is adhe... | 11/15/2005 |
| 6944958 | Chain saw chain tensioning and braking system A chain saw which includes chain tensioning and braking systems. Tensioning and braking are caused by the presence and control of longitudinal and lateral slits in an elongated support which provides a continuous chain channel guide in its outer circumference. ... | 09/20/2005 |
| 6698101 | Low-vibration and low-noise guide plate assembly for a chain saw A guide plate assembly for a chain saw includes a middle plate that is sandwiched and fixed between two side plates so as to define a guide groove among outer peripheries of the middle plate and the side plates. A saw chain can run within the guide groove... | 03/02/2004 |
| 6612037 | Replaceable nose member for chain saw guide bars A chainsaw guide bar includes a bar body and a nose member removably attached to the bar body by an elastic snap-in coupling, eliminating the need for separate fastening elements. The snap-in coupling includes dimples formed in tongues of the nose member,... | 09/02/2003 |
| 6427342 | Lightweight chain saw bar A guide bar for a chain saw is provided having an elongate substantially planar main body portion made from a first material and having an opening extending therethrough. An elongate insert made from a second material is configured to fit closely in the o... | 08/06/2002 |
| 6397452 | Guide bar including stump treatment A guide bar for the treatment of tree stumps. A channel formed in the bar length is fitted with a soft metal tube. The tube is pierced with a piercing tool that produces hole forms leaving a center opening inset toward the tube center with flared sides th... | 06/04/2002 |
| 6148547 | Chain saw guide bar for tree harvester A chain saw guide bar for a tree harvester is arranged to yield when an excessive force is applied such as when the guide bar becomes jammed in a cut. Yielding of the guide bar protects the bar holder from damage. The guide bar is heat treated or otherwis... | 11/21/2000 |
| 6138339 | Method of assembling a guide bar The invention relates to a method for assembling a guide bar having a guide groove for a saw chain of a motor-driven chain saw. The guide groove extends along the periphery of the guide bar. The guide bar includes two parallel mutually adjacent side parts... | 10/31/2000 |
| 6038775 | Chain saw accessory for supporting a chainsaw during vertical cutting A chainsaw foot for supporting the weight of a chainsaw during substantially vertical use and for fixing the angular orientation between the chainsaw guidebar and the material to be cut. One side of a hinge is attached to a substantially flat baseplate ha... | 03/21/2000 |
| 5987786 | Guide bar mount for a tree harvester A guide bar mounting arrangement for a tree harvester. The tail end of the guide bar is provided with a center slot and pin receiving slot at each side thereof. A sliding block has a center boss and pins permanently or removably mounted therein at the sid... | 11/23/1999 |
| 5943782 | Method for hardening selected regions of a guide bar for chain saws, and guide bar produced thereby A chain saw guide bar includes outer side surfaces, a longitudinal groove having side walls, and two edge surfaces. Each edge surface interconnects a side wall and an outer side surface to form therewith inner and outer corners, respectively. To edge-hard... | 08/31/1999 |
| 5884406 | Chainsaw guide bar which stiffens when bent Chain saw guide bar comprising three plates joined by welding, having a nose, a clamping area and a guiding groove for the chain, where the bending stiffness in a zone immediately in front of the clamping area is increased by omitting welds in the zone to... | 03/23/1999 |
| 5842279 | Guide bar for a motor chain saw A guide bar for a saw chain of a motor chain saw has a single member steel plate having a center plane and a circumferential guide groove for guiding a saw chain extending in the center plane. The steel plate has a longitudinal extension and a height perp... | 12/01/1998 |
| 5797187 | Chain saw guide bar having dye-emitting nozzles A chain saw guide bar is formed of a middle plate and a pair of side plates affixed on opposite sides of the middle plate. One (or both) of the side plates carries nozzles for emitting liquid dyes of different respective colors. Channels for conducting li... | 08/25/1998 |
| 5682680 | Guide bar for a saw chain A guide bar for a saw chain has a sort-shaped base member made of solid material, having a front end with a deflection area for a saw chain and a rear end for connecting the guide bar drive unit. The base member has outer lateral surface extending from th... | 11/04/1997 |
| 5666733 | Guide bar for a motor chainsaw A guide bar for a saw chain of a motor chainsaw has two side plates having a longitudinal extension. At least one longitudinal stay for fixedly connecting the side plates to one another is provided such that the side plates are positioned substantially co... | 09/16/1997 |
| 5666734 | Guide bar coding system A guide bar coding system which permits a user to easily and correctly match a saw chain to a saw guide bar. The guide bar has a laminate or multi-layer structure, and includes a recessed surface that is colored or painted to define guide bar indicia whic... | 09/16/1997 |
| 5655304 | Guide bar with attached wear protector A guide bar for a motor chain saw has a guide bar member having a peripheral guide groove and peripheral shoulders for guiding a saw chain in the peripheral direction of the guide bar member. The drive members of the saw chain engage the guide groove and ... | 08/12/1997 |
| 5649367 | Chain saw guide bar with identifying indicia A chain saw guide bar having identifying indicia to aid in the selection of a replacement guide bar and/or saw chain. A colored insert is installed in an aperture of the guide bar. The insert is colored to indicate the proper type of chain for the guide b... | 07/22/1997 |
| 5644904 | Sickle apparatus A sickle apparatus employing an endless cutter mechanism is provided wherein its modular construction allows the size of the apparatus to be readily tailored to variously sized equipment. Traveling blades are attached to the hollow pin drive chain by fast... | 07/08/1997 |
| 5596811 | Chainsaw guide bar Guide bar for saw chain, where the chain is supported by a nose sprocket while traversing the front end. Regions of the edges of the guide bar are locally hardened to a higher hardness than the rest of the guide bar. The regions of hardness are where the ... | 01/28/1997 |
| 5564192 | Guide bar for a saw chain of a motor-driven chain saw The invention relates to a guide bar for the saw chain of a motor-driven chain saw. The guide bar has a guide groove which extends about the periphery thereof wherein the saw chain runs. The guide groove is delimited by two side plates which are tightly c... | 10/15/1996 |
| 5426854 | Chain saw guide bar with liquid spray device A chain saw guide bar allowing spraying of the cut surface of a stump with liquid, is made from three joined plates with a spraying device comprising one or more supply channels provided as cutouts in the central plate. A plurality of spraying holes are p... | 06/27/1995 |
| 5271157 | Guide bar for a chain saw The invention is directed to a guide bar for portable motor-driven chain saws. The guide bar includes two steel side parts and a center part connected to the side parts. The weight of the guide bar is kept optimally low while at the same time providing ad... | 12/21/1993 |
| 5249363 | Guide bar having a lamellar assembly and method of making the same The invention is directed to a guide bar for guiding the saw chain of a motor-driven chain saw. The guide bar of the invention has a lamellar configuration and is not made of three parts as are conventional guide bars. Instead, the guide bar of the invent... | 10/05/1993 |
| 5216814 | Chain saw guide bar A chain saw guide bar comprises an elongate plate member having a rounded tip and providing guide means for a saw chain around its periphery. The plate member has a network of intercommunicating passageways provided between its lateral faces and extending... | 06/08/1993 |
| 5174029 | Chain saw tensioning mechanism A mechanism for tensioning the chain of a chain saw. The apparatus includes a cutting bar around which the chain extends. The cutting bar has a base portion mounted to an operating housing of the chain saw, and a distal portion carried by the base portion... | 12/29/1992 |
| 5144867 | Method of making a chain saw guide bar A guide bar for a chain saw is preincised so as to form the tip for the chain. The preincised guide bar is placed in a mold having a recess conforming to the curved tip. The space formed by the recess is then filled with a powdery wear-proof material, whi... | 09/08/1992 |
| 5143131 | Selectable spray pattern chain saw bar system A fluid spraying saw bar, and a chain sawing apparatus, such as a tree harvester, having such a saw bar are provided for selectively applying a predetermined fluid pattern of urea on a tree stump during felling, and of paint on a log end during bucking. A... | 09/01/1992 |
| 5093998 | Repairable guide bar for tree harvesters A guide bar for a mechanical harvester wherein the guide bar is repairable after bending. The guide bar is provided with a bendable section in a limited zone between the mounting bracket and the principal cutting portion of the bar. A hinge area is thereb... | 03/10/1992 |
| 5067243 | Laminated adhesive core chain saw guide bar with containment and spacing wire A chain saw guide bar assembly includes opposing outer laminates in spaced relation as defined by a wire structure lying generally about the periphery of the laminates, but spaced inwardly of the edge boundary thereof whereby a saw chain groove formation ... | 11/26/1991 |
| 5052109 | Repairable guide bar for tree harvesters A guide bar for a mechanical harvester wherein the guide bar is repairable after bending. The guide bar is provided with a pliable section of lowered hardness in a limited zone between a mounting bracket and the principal cutting portion of the bar. A hin... | 10/01/1991 |
| 5035058 | Chain saw guide bar A guide bar for a chain saw, the bar having oppositely located flat sides. A plurality of recesses are formed in each of the sides, the recesses on one side being offset from the recesses on the other side. At least some of the recesses are filled with a ... | 07/30/1991 |
| 5025561 | Guide bar for a chain saw A guide bar for chain saw comprises a main body of a plate shape. The main body has first and second sides facing each other in the thickness direction of the main body. The main body includes at least a first recess provided on the first side, and a seco... | 06/25/1991 |
| 5014435 | Chain saw guide bar A chain saw guide bar including an inner plate and a pair of outer plates fixed to both flat sides of the inner plate. The inner plate has holes formed therethrough. The outer plates also have holes formed therethrough, but they are smaller than the holes... | 05/14/1991 |
| 4965934 | Laminated guidebar A guidebar for powered saws comprises three plates joined by spot welding, where the outer plates are made from a hardenable steel with carbon content over 0.5 percent without boron and the middle plate from a boron alloyed steel with a carbon content low... | 10/30/1990 |
| 4961263 | Guide bar of solid material for the saw chain of a motor chain saw The invention relates to a guide bar having a main member made of solid material for a motor chain saw. The guide bar has two flat sides and narrow edges defining a saw chain path. A cutout extends through the main member of the guide bar for reducing wei... | 10/09/1990 |
| 4956918 | Guide bar for the saw chain of a motor-driven chain saw The invention is directed to a guide bar for the saw chain of a motor-driven chain saw and includes a base body section on which a nose assembly section for the saw chain is releasably attached. The nose assembly section is attached to the base body secti... | 09/18/1990 |
