61 |
Self-attaching female fastener elements and method of forming same |
US10546412 |
2003-11-24 |
US07651401B2 |
2010-01-26 |
Harold A. Ladouceur; John M. Parker |
The method of forming self-attaching female fasteners by rolling a continuous metal strip including a central pilot portion having parallel sides and flange portions on opposed sides, severing at least the pilot portion and cold forming the rectangular pilot portion into a cylindrical end portion. Wing-shaped radial portions are formed in the pilot portion which may be severed or remain for anti-rotation features. The strip may remain continuous, wherein the severed pilot portions are spread and the flange portions are thinned or the strip may be severed into discrete fasteners. The female fasteners thus include generally cylindrical pilot portions and rectangular flange portions which may include rolled grooves. |
62 |
Fastener manufacturing apparatus and method |
US11122629 |
2005-05-05 |
US20060252561A1 |
2006-11-09 |
John Vrana; Harold Ladouceur; Richard Ward; Jorge Gonzales |
An assembly line for continuously manufacturing fasteners from a rod with a groove for receiving a wire for retaining the fasteners in a strip includes a receiver for receiving the rod. A die press is arranged to receive the rod from the receiver and includes a piercing member for piercing an aperture in each fastener and a cutting member for cutting each fastener from the rod. A tapping member provides ribs to an inner wall of the aperture formed in the fastener by the piercing member. An inspector inspects the internal rib formed into the inner wall of the aperture disposed in the fastener verifying exactness of the aperture and the rib. A wire inserter inserts the wire into the groove forming a strip of connected fasteners. The inserter receives the fasteners sequentially from the inspector after verification of the exactness of the aperture disposed in each fastener. |
63 |
Method and apparatus for forming discrete microcavities in a filament wire |
US10460611 |
2003-06-12 |
US20040250589A1 |
2004-12-16 |
Daniel
Hogan; Makoto
Ishizuka |
A microcavity forming device is provided that includes a microcavity forming means of making microcavities in a surface of a heated filament wire. The microcavity forming means includes an array of teeth for engaging the surface along a length dimension of the filament wire. The device further includes a drawing means of drawing the filament wire along the length dimension. The drawing means draws the filament wire along the length dimension and the array of teeth engages the surface of the filament wire to form the microcavities. |
64 |
Seamless siding and method and apparatus for making a seamless siding panel |
US09747367 |
2000-12-21 |
US20020078650A1 |
2002-06-27 |
Michael
J.
Bullinger; Russell
L.
Cooper |
A siding system includes panels having a facing element with a convex front face portion. A first connecting portion extending along an upper edge and a second connecting portion at a lower edge is adapted to engage the first connecting portion of an adjacent lower siding panel. Mounting holes at a top edge of the facing element provide for mounting the siding panel to a vertical surface. A support element, such as foam insulation attaches to a rear surface of the facing element. A machine for making the metal siding panels has a feeder and multiple roller sets. First ones of the rollers have a concave portion and complementary second ones of the rollers have a convex portion. The concave portion first roller set has a larger radius profile than the last roller set to roll form the siding from a coil of blank material. Bending rollers form the mounting structure of the panels. Embossing rollers forming an embossed pattern on the face of the panels. |
65 |
Rolled product for chain and method for producing same |
US09837973 |
2001-04-19 |
US06393818B1 |
2002-05-28 |
Takerou Nakagawa; Sachihiko Maeda; Atsuhiro Tamiya; Takeshi Kimura; Takeshi Kondo |
A rolled product for a chain and a method for producing the rolled product are disclosed. Plural dimples are formed in a zigzag pattern in at least one of inner and outer peripheral surfaces of the rolled product, the dimples absorbing plastic deformation of a rolled workpiece when the rolled product is forced through a circular orifice of a die, and plural recessed portions are defined by the dimples on any imaginary straight line on the dimpled surface in the axial direction of the rolled product. The absorption of plastic flow by the dimples prevents a waving phenomenon from occurring at the end faces of the rolled product. When the rolled product is used as a chain component such as bushing or roller, it is possible to prevent leakage of a lubricant in the axial direction of the rolled product, and hence possible to improve the lubricant retaining performance in a rotating and sliding portion. |
66 |
Decorative roll-patterned strip and process of making same |
US09275641 |
1999-03-24 |
US06187455B1 |
2001-02-13 |
Frans R. Eschauzier |
A decorative roll-patterned metal strip or sheet, preferably aluminium strip or sheet, having: a thickness of about 0.05-1.0 mm, preferably about 0.1-0.8 mm, with a surface having a plurality of indentations of a depth of about 0.001-0.05 mm, preferably about 0.02-0.035 mm, and optionally having a layer of a paint of a thickness of about 3-30 microns, preferably about 10-15 microns, on the surface and within its indentations, the ratio of the depth of the indentations to the thickness of the strip or sheet being in the range of about 1:5 to about 1:100. A process is provided for making the decorative roll-patterned metal strip. |
67 |
Method and apparatus for producing a metal strip having areas of
different thickness over its width |
US160872 |
1998-09-25 |
US5953949A |
1999-09-21 |
Friedrich Behr; Klaus Blumel; Thomas Flehmig |
The invention relates to the production of a metal strip having formed-in thinner areas. To this end the strip B is drawn through a drawing nip 1, 2 formed by the end face of a working roll 3 adjusted at an angle and a support roll 4, which can take the form of a working roll. When drawing takes place through the working nip 1, 2, a rolling force and simultaneously a tensile force transversely of the pulling direction are so exerted on the strip B by the two rolls 3, 4 that the displaced material flows practically exclusively transversely of the pulling direction in the areas to be thinned down. |
68 |
Refrigerant tubes for heat exchangers |
US675154 |
1996-07-03 |
US5931226A |
1999-08-03 |
Hirosaburo Hirano; Yuji Yamamoto; Shinji Ito |
A refrigerant tube for use in heat exchangers comprises a flat tube having parallel refrigerant passages in its interior and comprising upper and lower walls and a plurality of reinforcing walls connected between the upper and lower walls, the reinforcing walls extending longitudinally of the tube and spaced apart from one another by a predetermined distance. The reinforcing walls are each formed with a plurality of communication holes for causing the parallel refrigerant passages to communicate with one another therethrough. Each of the reinforcing walls is 10 to 40% in opening ratio which is the proportion of all the communication holes in the reinforcing wall to the reinforcing wall. |
69 |
Hollow bars and method of manufacture |
US351478 |
1994-12-21 |
US5803671A |
1998-09-08 |
Peter Andrew Gray |
A hollow bar (3) and a method of manufacturing the hollow bar are disclosed. Typically, the hollow bar is a threaded rock bolt or a drill rod. The hollow bar (3) comprises two or more elongate members (21a, 21b) connected together along the longitudinal edges (41) of the members (21a, 21b). The method comprises rolling the members (21a, 21b) and welding or gluing the members (21a, 21b) together along the longitudinal edges (41) of the members (21a, 21b). |
70 |
Method of making refrigerant tubes for heat exchangers |
US665310 |
1996-06-17 |
US5749144A |
1998-05-12 |
Hirosaburo Hirano; Yuji Yamamoto; Shinji Ito |
A refrigerant tube for use in heat exchangers comprises a flat aluminum tube having parallel refrigerant passages in its interior and comprising flat upper and lower walls and a plurality of reinforcing walls connected between the upper and lower walls, extending longitudinally of the tube and spaced apart from one another by a predetermined distance. The reinforcing walls are each formed with communication holes for causing the parallel refrigerant passages to communicate with one anther therethrough. The flat aluminum tube is prepared from upper and lower two aluminum sheets by bending opposite side edges of the lower aluminum sheet to a raised form and joining the bent edges to the respective side edges of the upper aluminum sheet which is flat so as to form a hollow portion. The reinforcing walls are formed by joining to the inner surface of the upper wall ridges projecting inward from the lower wall. The communication holes are formed by cutouts formed in the edges of the ridges at a predetermined spacing and having their openings closed with the upper wall. |
71 |
Refrigerant tubes for heat exchangers |
US802266 |
1997-02-19 |
US5730215A |
1998-03-24 |
Hirosaburo Hirano; Yuji Yamamoto; Shinji Ito |
A refrigerant tube for use in heat exchangers comprises a flat aluminum tube having parallel refrigerant passages in its interior and comprising flat upper and lower walls and a plurality of reinforcing walls connected between the upper and lower walls, extending longitudinally of the tube and spaced apart from one another by a predetermined distance. The reinforcing walls are each formed with communication holes for causing the parallel refrigerant passages to communicate with one anther therethrough. The flat aluminum tube is prepared from upper and lower two aluminum sheets by bending opposite side edges of the lower aluminum sheet to a raised form and joining the bent edges to the respective side edges of the upper aluminum sheet which is flat so as to form a hollow portion. The reinforcing walls are formed by joining to the inner surface of the upper wall ridges projecting inward from the lower wall. The communication holes are formed by cutouts formed in the edges of the ridges at a predetermined spacing and having their openings closed with the upper wall. |
72 |
Refrigerant tubes for heat exchangers |
US618090 |
1996-03-19 |
US5638897A |
1997-06-17 |
Hirosaburo Hirano; Yuji Yamamoto; Shinji Ito |
A refrigerant tube for use in heat exchangers comprises a flat aluminum tube having parallel refrigerant passages in its interior and comprising flat upper and lower walls and a plurality of reinforcing walls connected between the upper and lower walls, extending longitudinally of the tube and spaced apart from one another by a predetermined distance. The reinforcing walls are each formed with communication holes for causing the parallel refrigerant passages to communicate with one anther therethrough. The flat aluminum tube is prepared from upper and lower two aluminum sheets by bending opposite side edges of the lower aluminum sheet to a raised form and joining the bent edges to the respective side edges of the upper aluminum sheet which is flat so as to form a hollow portion. The reinforcing walls are formed by joining to the inner surface of the upper wall ridges projecting inward from the lower wall. The communication holes are formed by cutouts formed in the edges of the ridges at a predetermined spacing and having their openings closed with the upper wall. |
73 |
Production process for a gasket and tool for performing the process |
US50427 |
1993-08-23 |
US5403532A |
1995-04-04 |
Friedhelm Stecher; K. Gerd Friedrichs |
A process for the production of a gasket is described, in which at least on one side and at least on all bearing points in the use case a three-dimensional sealing surface complimentary to the deflection of the surfaces to be sealed is permanently shaped prior to assembly, as well as a tool for performing the process. An assembly pattern is produced in such a way that a plastically deformable material is fixed between the surfaces to be sealed. A negative copy or form of the assembly pattern is produced on the circumferential surface and the gasket is produced accompanied by the rolling of the stamping roller. |
74 |
Blind riveting assembly |
US724525 |
1991-06-28 |
US5167585A |
1992-12-01 |
Barry T. Williams |
A blind rivet assembly comprising a flanged rivet body and a mandrel having a stem provided with extension means wherein wire fed to mandrel-forming means is first subjected to at least one operation to form a series of indentations on the surface of the feed wire. This may be carried out by a plurality of pairs of indenting rolls arranged symmetrically around the feed wire. |
75 |
Heat transfer tubes and method for manufacturing |
US574490 |
1990-08-28 |
US5052476A |
1991-10-01 |
Shunroku Sukumoda; Seizo Masukawa; Haruo Kohno |
A heat transfer tube having an inner surface in which are formed primary grooves and secondary grooves. The primary grooves parallel to one another, extending at an angle to the longitudinal direction of the heat transfer tube and secondary grooves parallel to one another, extending an angle to the primary grooves. At the intersections of the primary and secondary grooves is formed a series of pear-shaped grooves whose inner opening dimension is smaller than the dimension of the bottom of the pear-shaped groove. |
76 |
Step of passenger conveyor method of manufacturing same, and wavy metal
plate |
US318814 |
1989-03-03 |
US4984673A |
1991-01-15 |
Chuichi Saito; Kazuhira Ojima; Yoshihiro Ohsumi |
A support surface, particularly for the tread of passenger conveyers, as anti-slip, strengthening and wear resistant grooves deformed in the top portion of cleats formed by corrugating metal. |
77 |
Machine for making star-shaped fasteners |
US192797 |
1988-05-11 |
US4833906A |
1989-05-30 |
Frank R. Potucek |
A wire straightener and multiple preform rollers prepare a continuous length wire for further forming by multiple form rollers having multiple spaced apart notches formed in an annular edge of the rollers. Some notches skip a section of the wire to be headed, and other notches serve to form barbs in the wire. In a first embodiment, after the formed wire is fed to a gripper housing where the wire is cut to a predetermined length, the skipped section is punched to create the fastener head. In a second embodiment, the formed wire is cut and fed to a rotary heading machine. |
78 |
Process and apparatus for producing reinforced metal strips |
US653562 |
1984-09-24 |
US4597277A |
1986-07-01 |
Jean-Paul Esmieu |
Metal sheets of aluminum are provided with raised reinforcing portions of substantial height by rolling. The rolls have recesses or channels (6) whose side faces are in a counter-taper configuration with respect to a plane perpendicular to the axis of the cylinder, with an angle of inclination (.alpha.) of up to 5.degree.. The resulting product may advantageously be used for producing perforated metal sheets with high modulus of inertia. |
79 |
Method and apparatus for continuously producing a core member of a trim |
US540850 |
1983-10-11 |
US4523448A |
1985-06-18 |
Hiromu Sakai; Sazo Ezaki; Atsuo Kikuchi |
A method for continuously producing a core member to be embedded within a trim, comprises the continuous steps of forming slits in a band-shaped metallic plate by means of slitting rolls, elongating the slit metallic plate by means of elongating rolls and pressing the elongated metallic plate by means of finishing rolls. |
80 |
Method of producing improved serrated flats used in the manufacturing of
grating |
US181418 |
1980-08-26 |
US4338807A |
1982-07-13 |
Marion P. Ricono; Harold D. Bridges |
Billets of hot steel are hot rolled through a series of rolling stands to form an elongated flat. This flat is first worked to a predetermined thickness and width and then subjected to an edging pass at a succeeding stand. The edging pass is comprised of a pair of rolls having spaced apart, aligned grooves to receive the flats. The groove in one of the rolls is provided with a plurality of holes having certain characteristics. The depths of the roll grooves, the distance they are spaced apart, the depth and other characteristics of the holes provided in the one grooved roll and the widths of the roll grooves are all adjusted with respect to the predetermined dimensions of the flats entering the edging pass so that desired serrations are imparted to the flat as it passes through the edging pass. A final flat pass may be utilized to finalize the dimensions of the finished, serrated flat. The holes are cut into the roll groove by electric discharge machining. Care is given to the control of the shape of the flat before and after it enters the edging pass. The serrations, however, are imparted to the flat as it passes through the edging pass. |