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Class 72/370.27 - Forming holes in tube


Subclass of Class 72 - Metal deforming
Definition: Process in which an opening is formed in the tube"s* wall.
No. of patents: 46
Last issue date: 09/27/2011


1    
NumberTitleIssue Date
8024954Method for making a cold-worked article
In a method for cold-working a piping component (10) with a pipe branch (16), particularly a valve housing of stainless steel, the pipe branch (16) is provided its length and final bore by forcing at least one ball or a drawing tool with partial...
09/27/2011
7420109Musical instrument tone hole forming tool and method
A novel musical instrument tone hole forming tool. A body includes a distal end to be inserted transversely into a musical instrument through an opening therein. The distal end of the body includes sockets spaced about its periphery. Bearings are located in the sock...
09/02/2008
7343678Method and device for production of a hollow section
The invention concerns a method and apparatus for production of a hollow section (1) in which a coiled pre-shape of the hollow section (1) is deep drawn from a sheet part, which is pre-bent after a trimming process and coiled into the final shape of ho...
03/18/2008
7249480In-die hydropiercing device for piercing holes in hydroformed parts
An in-die hydropiercing device comprises a punch with an annular shearing blade which is operated by a hydraulic cylinder and is received in a ring-shaped die button mounted in one of the dies that form a die cavity for the hydroforming of a part, a center support m...
07/31/2007
7204113Punch for hydroforming die
A punch for a hydroforming die includes a body, a neck extending axially from the body, a head extending axially from the neck and having a diameter less than a diameter of the body and a thumbnail slot extending axially and radially into the head to allow fluid wit...
04/17/2007
7178240Method for molding bicycle tube
This invention relates to a method for molding a bicycle tube and the method comprises the following steps: first, providing a tube and then controlling thickness of the tube by a drawing and extruding process for forming a molding portion. Second, plasticize other ...
02/20/2007
7146835Method and apparatus to reduce slot width in tubular members
An apparatus and method are provided for reducing the width of a plurality of longitudinal slots or other openings spaced circumferentially around a slotted tubular member. The invention includes a seaming roller positioned to contact the outer surface of the slotte...
12/12/2006
7127924Double action punch assembly for hydroforming die
A double action punch assembly for a hydroforming die includes a first punch segment having an aperture extending therethrough. The double action punch assembly also includes a movable mounting block disposed in the aperture of the first punch segment. The double ac...
10/31/2006
7128494Method and apparatus for securing a caster wheel
An integrally formed caster socket is provided in a tubular framing member for a merchandising display or the like. The framing member has aligned stem receiving holes with the upper hole being on an outwardly domed frusto-conical shaped area and the lower hole is o...
10/31/2006
7104099Center support punch assembly for hydroforming die
A center support punch assembly for a hydroforming die includes a center support member for fixed attachment to a die. The center support punch assembly also includes a button disposed about and space from the center support member for fixed attachment to the die. T...
09/12/2006
7073366Method and apparatus to reduce the width of a slot or opening in a pipe, tube or other object
A method to reduce the width of slots or openings in a pipe. The method involve determining the position of the slots relative to the surface of the pipe and determining the width of the slots. A signal is generated corresponding to the determined width and relative...
07/11/2006
7021571Spray device with flat fan nozzle
The present invention relates to a portable device for spraying a liquid at low pressure, said device comprising a spray arm (220), and characterized in that the spray arm comprises at least one flat fan spray nozzle (230). Preferably, the liquid is a ...
04/04/2006
6931901Method and apparatus for forming a threaded hole in a hydroformed part
Method and apparatus are disclosed wherein a required threaded hole is formed in a hydroformed part with a single tool while the part remains in a hydroforming die cavity. In forming the threaded hole, a hole is first pierced in the wall of the part and then an annu...
08/23/2005
6877652Metal tubular body and manufacturing method thereof
Side hole-bearing tubular bodies made of metal and having an inside diameter of up to 2 mm are manufactured by a method which includes punching from a metal sheet a sheet blank in the developed shape of a tubular body and punching in the sheet blank a hole which cor...
04/12/2005
6840079Automated tube tee forming and trimming system
An automatic tube tee forming and trimming system uses a single apparatus for milling a hole in a tube, pulling a forming die through the milled hole, and face trimming the resulting pullout joint to the desired height. The forming die is pulled out through the hole...
01/11/2005
6772518Method of forming flat-tube insertion slots in a header tube
The invention relates to a method for forming at least one flat-tube insertion slot in a header tube. A sawcut is introduced into the header tube during a sawing step, and the slot is configured, during a subsequent punching step, by means of a slot punch, which pun...
08/10/2004
6698939Method for processing an insert pipe for use in injection molding
A number of holes (3) are formed in the outer circumferential wall (2) of a tubular metallic pipe (1) at regulator intervals in both circumferential and axial directions. Each of the holes (3) consists of a polygonal opening (4) and raised pieces (5) form...
03/02/2004
6681611Process and device for manufacturing holes on the circumference of hollow sections
A process for manufacturing holes on the circumference of a hollow section situated in an internal high pressure forming tool uses the action of a punch integrated in the forming tool. A desired breaking point is formed on the hollow section, which follow...
01/27/2004
6484551Process for manufacturing holes on the circumference of hollow sections
A process for manufacturing holes on the circumference of a hollow section situated in an internal high pressure forming tool uses the action of a punch integrated in the forming tool. A desired breaking point is formed on the hollow section, which follow...
11/26/2002
6470546Process and apparatus for producing a linkage of an air/fuel ratio detector holder to an exhaust pipe
A process and a device produces a linkage of a hollow cylindrical air/fuel ratio detector holder to an opening for the impingement of the air/fuel ratio detector, which is fastened into the holder, to an exhaust pipe equipped with exhaust gas. A desired f...
10/29/2002
6453710Method and apparatus for manufacturing a helically-wound lock-seam tube having air nozzles
In a method of manufacturing a helically-wound lock-seam tube for a ventilation duct system, the tube is provided with a plurality of air nozzles through its wall. The method involves the steps of: feeding a strip of sheet metal from a supply to a punchin...
09/24/2002
6295842Uniform distribution quenching of formed glass sheets
A glass sheet quench unit (22) and method for quenching formed glass sheets by quench gas jets (40) that define a uniformly repeating gas jet impingement pattern (44) that is an equilateral triangular pattern providing uniformly repeating quench cells (46...
10/02/2001
6112570Method for making slots in metal pipe
A method for making slots in metal pipe and, in particular, slots less than 15 thousandths of an inch in width. Firstly, providing a metal pipe (10) having an exterior surface (12) and an interior surface (14) which defines an axially extending interior b...
09/05/2000
6098441Method for forming a through-hole through the circumferential wall of a metal pipe and a metal pipe worked by the said method
A method for forming a through-hole through the circumferential wall of a metal pipe includes the steps of forming at least a thin portion by removing an outside circumferential surface portion of a metal pipe, and forming a through-hole in the thin porti...
08/08/2000
6044683Apparatus and method for forming joints in tubing
The present invention relates to an effective method of cold-forming a tee in tubing. The method includes the steps of forming a quadrilobal pilot hole in the tubing, securing the tubing, and forcing a rounded member from the interior of the tubing throug...
04/04/2000
6021571Apparatus for forming collars in workpieces
The invention concerns apparatus for forming collars in workpieces, where said apparatus comprises a bending former having an inner forming segment (16) and an outer forming segment (12) receiving a workpiece (96), further a plunger (24) for drawing throu...
02/08/2000
5919534Perforated food casings and method
A vented food casing having a plurality of die cut vent openings which are uniform and free-draining so as to provide the casing with a vent rate for air and liquids such as meat juices which is substantially constant around the periphery of the casing. T...
07/06/1999
5642640Back extrusion process for forming a manifold port
A method for forming ports on a heat exchanger manifold, in which risers are back extruded in a single operation from the surrounding material of the manifold such that subsequent machining steps to further define and finish the port are unnecessary. The ...
07/01/1997
5606786Apparatus and method for producing pipe and pipe produced thereby
An apparatus and method for perforating corrugated plastic pipe from the inside of the pipe to the outside and the pipe produced by the method. The apparatus has a perforating device attached to an elongated support member. Perforations are created by adv...
03/04/1997
5419174Apparatus for forming tubular risers and manifolds including tubular risers
A manifold for a heat exchanger is formed by placing a blank having a siamesed pair of tubular passages supported by a first mandrel into a die cavity which receives the blank and defines at least one riser channel extending from the cavity. Each riser ch...
05/30/1995
5406819Method and equipment for forming the axle housing of an automobile using an integral steel tube
The invention relates to a method for forming and manufacturing the automobile rear axle housing from an integral steel tube, and to the special equipment for using the said method. The method involves cutting a longitudinal through opening in the center ...
04/18/1995
5337477Methods and apparatus for forming tubular risers and manifolds including tubular risers
A manifold for a heat exchanger is formed by placing a blank having a siamesed pair of tubular passages supported by a first mandrel into a die cavity which receives the blank and defines at least one riser channel extending from the cavity. Each riser ch...
08/16/1994
5271138Thermal anemometer
An anemometer includes a tubular cylindrical housing having an outer sensing end portion with a sensing passageway formed by opposite parallel flat walls integrally formed with the tubular cylindrical housing. A rod-like sensor is mounted centrally betwee...
12/21/1993
4798076Nipple forming apparatus
The specification discloses extension nipple formation at acute angles on tubular engine exhaust manifold bodies for lap weld attachment of side runners. An articulated or single axis mandrel is inserted axially into the tubular body, each mandrel portion...
01/17/1989
4663812Method of manufacture of manifolds
A method of manufacturing integrated manifolds for heat exchangers include providing hollow shape with a plurality of individual risers each having a substantially solid cross-section. Subsequently, the risers are reshaped by means of a reverse impact ext...
05/12/1987
4582259Wash arm and method and apparatus for forming the same
A method of forming a spray nozzle along a fluid conduit includes forming a hole into a length of tubing and then providing a countersink for the hole. A portion of the tubing is then depressed inwardly along an imaginary line along the tubing outer surfa...
04/15/1986
4499749Tubing perforator
A tube perforator is provided which has a generally cylindrical mandrel which extends within a tube. The mandrel is hollow and has a passage therein which extends in angular relation to the axis of the mandrel and exits on one side thereof. A punch dispos...
02/19/1985
4389866Apparatus for forming an enlarged flanged hole in a curved surface
An apparatus useful for forming in a curved surface, an enlarged hole surrounded by an upturned flange whose unattached edge lies substantially in a common plane, uses a drill rod, a set of bits, and a mechanism for forming an upturned flange. A first bit...
06/28/1983
4270374Method of and device for forming an integral lubricating nipple on a tubular member
An integral lubricating nipple is formed on a tubular member, first, by pressing a conically shaped hollow lug outwardly from the tubular member and then by applying rotatable pressure jaws against the conically shaped lug to provide the finished surface ...
06/02/1981
4253224Fixtureless method of making tube joints
A method of joining tubular elements to provide fluid tight connections is disclosed in which the mating portions of the joined tubes are preformed so as to be able to be located with respect to each other prior to soldering, brazing, or other joining pro...
03/03/1981
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