Bizarre Patents
Mountable Printable Placard With Headband
A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.
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| Number | Title | Issue Date |
| 7171834 | External sleeve assisted tube bending A method and apparatus for bending tubes particularly suited for bending thin-walled tubing into a tight radius bend. An external sleeve is used during the bending process which maintains the tube cross sectional area and tube wall thickness, thereby eliminating the... | 02/06/2007 |
| 7143629 | Manual pipe bender The manual pipe bender has a stationary handle, a head, a bending die, a bending lever, and a bending handle. The stationary handle has a distal end, and the head is attached to the stationary handle. The bending die has a bending surface and multiple ratchet teeth.... | 12/05/2006 |
| 7032422 | Pipe bending processing apparatus and pipe bending processing method A pipe bending processing apparatus includes a drawing and bending section for pressingly contacting a drawing and bending mold, a clamp mold with one end of a pipe P and performing drawing and bending processing, compression bending section for pressingly contactin... | 04/25/2006 |
| 7010951 | Feeding mechanism of an automatic pipe bending machine A feeding mechanism of a pipe bending machine is equipped with several auxiliary hydraulic cylinders in addition to an original power source for providing power to feed a pipe; the auxiliary hydraulic cylinders are joined to an auxiliary fixing member at output rods... | 03/14/2006 |
| 6715328 | Bracing device for a bending machine A bracing device for a bending machine, in particular for a tube bending machine, in the form of a slide rail moved linearly in slaved fashion in the bending operation and having a plurality of slide rail extensions for different bending radii, which are mounted on ... | 04/06/2004 |
| 5687601 | Group for clamping and dragging a pipe or rod for pipe benders with or without an inner mandrel and rod benders, and machines for clamping mechanical parts in general Vise for clamping a pipe or rod or section bar or other mechanical part, with a jaw (3) and a counterjaw (3'), comprising a piston fixed in position by a support (10) with a rod (6) to the head of which said counterjaw (3') is rendered integral through a ... | 11/18/1997 |
| 5469728 | Shaped groove countermatrix for rotary groove pulley matrix and countermatrix bending head pipe bending machines A shaped groove countermatrix for a rotary groove pulley matrix and countermatrix head pipe bending machines has a semicircular cross-sectional tract and an end tract (2) tapered, both longitudinally and transversely according to substantially elliptic pr... | 11/28/1995 |
| 5345802 | Shaped groove countermatrix for rotary groove pulley matrix and countermatrix bending head pipe bending machines A shaped groove countermatrix for a rotary groove pulley matrix and a countermatrix head pipe bending machine has a semicircular cross-sectional tract and an end tract (2) tapered, both longitudinally and transversely, according to substantially elliptic ... | 09/13/1994 |
| 5339670 | Apparatus and method for bending tubing Forming dies adaptable to conventional tube bending machinery, the forming dies including aligned forming rollers engaging the tubing to be bent, said forming rollers containing grooves having curvilinear surfaces said forming rollers initially deforming ... | 08/23/1994 |
| 4959984 | Precision bending apparatus A tube bending apparatus is provided for placing a plurality of bends in an elongated tube. The apparatus includes a position sensor for sensing at least one location on the tube for assessing the accuracy of the bends placed therein. The apparatus furthe... | 10/02/1990 |
| 4938048 | Guide strip control device of pipe bending machine A guide strip control device of pipe bending machine for controlling the transverse movement of a guide strip that is applied laterally against a pipe to be bent, which is held and moved longitudinally by a carriage. A first cylinder moves the guide strip... | 07/03/1990 |
| 4747283 | Boosted drive for pressure die of a tube bender A tube bender has multiple rotatable bend dies of differing radii and a pressure die engaging the outer surface of the trailing portion of the tube tangential to the bend. A drive for the pressure die is provided to move the pressure die parallel to the t... | 05/31/1988 |
| 4744233 | Apparatus for bending rectangular tubes A bending apparatus is provided for rectangular tubes. The apparatus comprises a bending die, a wiper die, a clamp die, a pressure die and a mandrel. The clamp die and pressure die are provided with tongues which are engageable in corresponding grooves in... | 05/17/1988 |
| 4537052 | Follow bar with cam tracks for rocker type conduit bender The follow bar of a rocker type conduit bender includes a pair of cam tracks with a series of angular ramp surfaces along their length. The inclination of the ramp surfaces relative to the working surface of the bender shoe is varied inversely with change... | 08/27/1985 |
| 4318289 | Pipe cutting method and apparatus Material is drawn from a roll of flat stock, passed through a pipe forming machine, and welded to provide a continuous length of pipe which is stored in a variable size loop. Pipe is withdrawn from the loop by means of a series of pipe straightening and f... | 03/09/1982 |
| 4178788 | Adjustable clamp die In a rotary pipe bending machine in which the pipe is clamped against a rotary bend die by a clamp die and the two dies are rotated together while a rear section of the pipe is pressed by a pressure die, the clamp die is adjustably mounted for motion tang... | 12/18/1979 |
| 4130004 | Method for bending tubes A tube bend is started by compresssion bending and continued by draw bending. Conventional bending equipment is employed with one die slightly modified so that normal machine operation causes the pressure die to initially operate in a compression bending ... | 12/19/1978 |
| 4126030 | Retractable pressure die In a machine for draw bending pipe, a long pressure die that moves with the pipe during the bend is provided with a retractable rear section. Both sections are used for a large degree of bend but when a bend of lesser degree is made near the end of the pi... | 11/21/1978 |
| 4112728 | Device for bending pipes The device bends pipes into a serpentine pipe bank having right-hand and left-hand bends, with the pipe being held, during the bending operation, in a bending rail and the pipe end to be bent being clamped in a bending form. The bending rail and the bendi... | 09/12/1978 |
| 4078411 | Floating clamp die A clamp die for urging a tube against a rotatable bend die is mounted for limited translational and rotational motion so that its tube receiving cavity will accommodate and receive a portion of a bend previously made in the tube. Thus, one bend may be sta... | 03/14/1978 |
| 4063441 | Apparatus for bending tubes A tube bend is started by compression bending and continued by draw bending. Conventional bending equipment is employed with one die slightly modified so that normal machine operation causes the pressure die to initially operate in a compression bending m... | 12/20/1977 |
| 3987656 | Pipe bending apparatus A pipe bending apparatus for bending large diameter pipe of either thin or thick walled construction. The pipe bending apparatus includes a bending shoe which is pivotably mounted to a frame member and a follower shoe which is operable with the bending sh... | 10/26/1976 |
