Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 7552613 | Bending machine A bending machine has a base and a stage having a movable ram to press a metal plate on the base with a shaping process. The base has an opening corresponding to the ram to allow the ram to pass through the opening. The stage has a pivotal end mounted pivotally with... | 06/30/2009 |
| 7454943 | Articulated bending brake for sheet metal forming A bottom tool/bending die for use in sheet metal forming. The bottom tool includes a pair of movable dies that provide substantially continuous support of a work piece as it is being deformed. Each die includes an upper surface configured to contact the work piece a... | 11/25/2008 |
| 7249479 | Device for forming thin-walled material into a sleeve-shaped body Apparatus (1) for forming thin-walled material from an essentially flat piece of material (2) into a sleeve-like body (20), with two forming dies (3, 4), at least one of which is configured to be able to move into position against the oth... | 07/31/2007 |
| 7140225 | Method of bending pipe and apparatus therefor A movable die base (2) is moved toward a stationary die base (1). A pressing force is applied by a bending punch (21) disposed on the movable die base to a bending target portion of a pipe (A) which is placed on a die (11) provided on the... | 11/28/2006 |
| 7047789 | Pipe bending apparatus An improved pipe bending apparatus comprising a plurality of belts supporting the minor radius of the bend. The belts cannot support stresses sufficient to allow concentrated stress to cause the pipe walls to collapse. The belts are affixed to a framework that force... | 05/23/2006 |
| 6715334 | Apparatus and method for manufacturing thick-walled bent pipe An apparatus and a method for manufacturing a thick-walled bent pipe with a simple structure at low production cost, which has durability and can manufacture an elbow material for piping with higher size accuracy, are provided. For this purpose, the manufacturing ap... | 04/06/2004 |
| 6523388 | Vertical compression bending machine A vertical compression bending machine that uses linear bearings to guide the ram and cushions assemblies. The inventive machine also employs an adjustment mechanism to align the wing dies relative to one another.... | 02/25/2003 |
| 6450001 | Method and apparatus for manufacturing thick-walled bent pipe A method and apparatus for manufacturing a thick-walled bent pipe capable of manufacturing an elbow material for piping with higher size accuracy with use of a thick-walled pipe material are provided. For this purpose, the manufacturing apparatus includes... | 09/17/2002 |
| 5921132 | Portable tube bender The present invention relates to a tube bending apparatus which has a portable size and is easy to handle, with less cost of bending. The bending apparatus comprises a base plate having an elongated frame mounted on it. The frame includes a top support pl... | 07/13/1999 |
| 5884519 | Automatic hydraulic pin up system for a pipe bending apparatus An automatic hydraulic system 10 for the actuation of the bending beds 101, 102 hinge plate 103 and pin up plate 104 of a pipe bending apparatus. The hydraulic system 10 includes a hydraulic control circuit unit 14 that controls the operation of a pin up ... | 03/23/1999 |
| 5622075 | Bending machine The bend-straightening machine (100) for workpieces (20) that are more long than wide, such as camshafts, pinion shafts, and similar items, includes one or more straightening dies (14) that bring about on the workpiece (20), between straightening bases th... | 04/22/1997 |
| 5600993 | Flexible shoe for a bending machine A flexible shoe for a bending machine which includes a pair of flexible resilient spring-like shafts. A flexible web extends between and is secured to the pair of shafts.... | 02/11/1997 |
| 5598736 | Traction bending A traction bending apparatus bends workpieces (such as tubes and aluminum extrusions) with good thickness and wrinkling control, in circular arcs or in shapes clearly distinct from circular arcs, with cold forging of the workpieces for springback control,... | 02/04/1997 |
| 5493889 | Coupling between the controlling and actuating member and the working head of a portable pipe bending machine A coupling between the piston and cylinder controlling and actuating member and the bending head of a portable pipe bending machine comprising a collar (5) made up of two half collars (5', 5") with concavities complementary with the side wall of the cylin... | 02/27/1996 |
| 5353622 | Articulated three point pipe bending apparatus A pipe bending apparatus (10) for bending a section of pipe (100) at a desired location; wherein, the apparatus (10) comprises; a floating central hinge plate member (40) pivotally connected on opposite ends to a pair of bending bed members (30) which mov... | 10/11/1994 |
| 5123272 | Pipe bending machine for elongate material An improvement in a bending machine for elongate material consisting of a modified upper pressure member. The upper pressure member has a material contacting surface divided into a plurality of transverse segments which are movable to accommodate a bend i... | 06/23/1992 |
| 5040401 | Re-rod bender The present fabrication apparatus includes pivotable die blocks and a stationary half-moon male die for bending re-rods. Front inner portions of the pivotable die blocks bring over-center pressure on a bent rod so as to control the tendency of a bent rod ... | 08/20/1991 |
| 4967585 | Bending die and ram assembly for tube bending machine An improved bending die and ram assembly is provided for use in a tube bending machine used for bending metal tubing of the type used, for example, in vehicle exhaust systems and the like. The machine features a bending die having a convexly curved die fa... | 11/06/1990 |
| 4945751 | Re-rod cutter and bender The present invnetion is a portable reinforcing rod cutter and bender. A cutting die having elongate and oblique holes for receiving a plurality of rods to be sheared cooperates with a cutting blade connected to a hydraulically operated ram. A female bend... | 08/07/1990 |
| 4833907 | Consolidated backshoe die for a tube bender machine An improved consolidated backshoe die is provided for use in a tube bender machine used for bending metal tubing of the type used, for example, in vehicle exhaust systems and the like. The machine includes a bending die having a convexly curved die face f... | 05/30/1989 |
| 4811589 | Fork member for pipe-bending apparatus to support spaced pipe abutment A fork member for the bending section of a pipe bending apparatus includes a flat base having two symmetrically disposed diverging legs. Each leg has a protruding headed pin and a set of slots extending radially from the pin symmetrically on both legs. An... | 03/14/1989 |
| 4788847 | Rod bending apparatus A rod bending device using a combination of a movable mandrel and two moving rollers, between which mandrel and which rollers the rod bending is effected, the movements of which mandrel and rollers are effected simultaneously by the same power system and ... | 12/06/1988 |
| 4782686 | Tube bender for greenhouse structural supports A tube bending apparatus includes a substantially vertical structure with a bending shoe reciprocally mounted in a vertical plane. The ends of such shoe ride in parallel vertical guide channels, while the center of the bending shoe is powered preferably b... | 11/08/1988 |
| 4638665 | Tube bender A bending machine is provided to form a multiplicity of predetermined types of bends within several planes in elongated, heavy gauge workpieces of various sizes and shapes by pressure between a stack of dies and a pair of swingable anvil plates carried by... | 01/27/1987 |
| 4485664 | Device for forming and bending metal A metal forming tool having a reciprocal ram carrying tubular beam to which is attached a metal plate upon which workpiece holders are mounted, the tubular beam having a pivotal support to allow the tool to be pivoted between a vertical position in which ... | 12/04/1984 |
| 4406147 | Pipe-bending apparatus An apparatus for bending a pipe about a fixed forming member serving as abutment has members gripping the pipe externally as well as two mandrels intended to come inside the pipe. Each mandrel has an end piece movably carried by one end, the end pieces be... | 09/27/1983 |
| 4328696 | Method and apparatus for forming a heat shield plate A method of making a heat shield for an exhaust system tailpipe which comprises the steps of positioning a blank of sheet metal between a die having a forming surface of generally arcuately concave cross-sectional configuration which extends in a generall... | 05/11/1982 |
| 4299113 | Apparatus for bending tubes or bars and motor-pump unit therefor An apparatus for bending and/or curving tubes or bars, comprises bearings for the tube or bar to be curved or bent. The said bearings arranged on a support having a handle extending therefrom and enclosing an axially movable stem. A fluid, which is furnis... | 11/10/1981 |
| 4265106 | Pipe-bending apparatus A pipe-bending apparatus comprises an elongate structure having a longitudinal work surface at, or adjacent to, opposite ends of which clamping means and a former are respectively mounted. The former is held fast on the work surface, and the clamping mean... | 05/05/1981 |
| 4232542 | Portable manually controlled pipe-bending apparatus provided with reversible bending members Portable manually-controlled hydraulic pipe-bending apparatus comprises a coupling head and reversible bending members to reverse the bending direction of a pipe relative to the apparatus. The coupling head has thereon two parallel pins for supporting the... | 11/11/1980 |
| 4206629 | Back shoe for a tube bender The back shoe is made up of half block sections hinged together so that when in axial alignment, they function as a conventional back shoe on a tube bender. By hinging the two block halves, one half may be swung upwardly and over the other so that only on... | 06/10/1980 |
| 4141235 | Hydraulic bending machine A hydraulic bending machine comprises a reciprocating connector fitted symmetrically with a pair of roller holders having inner and outer rollers rotatably attached to the end portions thereof, respectively. In these inner and outer rollers to abut agains... | 02/27/1979 |
| 4055069 | Portable manually controlled hydraulic pipe bending apparatus A pipe bending device is manually operated to pump hydraulic fluid, under the influence of a first reciprocating piston, to extend a second reciprocating piston to bend the pipe. The hydraulic fluid is urged on the pressure stroke of the first piston past... | 10/25/1977 |
| 4005593 | Bending clamp A bending clamp is disclosed for use with a pipe bending apparatus having a generally arcuate shaped bending shoe about which a tubular pipe may be bent. The bending clamp is cooperable with the bending shoe to retain the pipe against the bending surface ... | 02/01/1977 |
| 4004445 | Rope bending device A device for bending wire rope into an eye which includes opposed spaced apart L-shaped arms spaced apart for pivotal movement in a common plane and means for pulling an intermediate portion of the rope between the L-shaped arms to cause them to pivot and... | 01/25/1977 |
| 3990291 | Bending machine for bending sheet and strip A bending apparatus for bending individual sheet and strip blanks and having a bending punch curved to a radius less than the desired bending radius. Tip-supports are arranged at either side of the punch and are pivotable in the bending plane. Each suppor... | 11/09/1976 |
