Beveled, Stepped, Or Skived In Thickness Patents (Class 428/60)
-
Patent number: 4568577Abstract: The present invention entails a laminated timber structure comprised of a plurality of elongated laminated timbers laminated together in side-by-side relationship to form an elongated timber structure. The cross sectional area of the respective elongated timbers are of a generally uniform shape and size, with the cross sectional area being preferably square such as one-half inch by one-half inch. This enables standard size laminated timbers such as two by four, two by six, four by four, to be formed. In forming the laminated timber structure of the present invention, the respective elongated timbers are disposed in side-by-side relationship and glued along the sides of the timber as well as across the ends, giving rise to both edge and face joints.Type: GrantFiled: January 4, 1982Date of Patent: February 4, 1986Inventor: David C. Fischetti
-
Patent number: 4564543Abstract: A multiple lap-joint for sheets of thermoplastic laminates, the laminates having edges separated by high temperature removable film separators. The laminate sheets are heated under pressure and formed. The separators are then removed and the feathered edges of two adjoining sheets are interleaved and the sheets are reheated under pressure forming an integrally formed lap-joint.Type: GrantFiled: September 13, 1984Date of Patent: January 14, 1986Assignee: The Boeing CompanyInventor: James D. Ritter
-
Patent number: 4551372Abstract: A laminated safety glass is disclosed which is comprised of first and second glass sheets, the second glass sheet being smaller than the first, the peripheral edges of each sheet defining between them a stairstep structure. The face of the larger glass sheet defining the stairstep structure is coated with an opaque material, on which is deposited an adhesive, which forms a water-tight seal over the plastic insert between the glass sheets, thereby preventing deterioration of the plastic insert qualities.Preferably, a primer, for improving adherence, is deposited on the opaque sheet before the adhesive bead is deposited, and the bead exhibits flange or tongues in the direction of the bay in which the glass is to be mounted, to delimit the amount and position of the adhesive to be applied.Type: GrantFiled: March 23, 1984Date of Patent: November 5, 1985Assignee: Saint-Gobain VitrageInventor: Heinz Kunert
-
Patent number: 4497858Abstract: A tile for use in constructing an entrance mat. The tile has a flat base and low walls surrounding the base for retaining water on the base. Scraper means are provided on the base for scraping snow, water and/or slush off the feet of people using the mat. Means are provided on each wall for use in connecting the tile to an adjacent tile. A plurality of the tiles are connected together to form a mat. Means are provided in each wall of a tile for directing water out of the tile when it reaches a certain level. The invention is also directed toward a mat made up of a plurality of the tiles.Type: GrantFiled: September 9, 1983Date of Patent: February 5, 1985Inventors: Andre Dupont, Paul Laurent
-
Patent number: 4496412Abstract: A multiple lap-joint for sheets of thermoplastic laminates, the laminates having edges separated by high temperature removable film separators. The laminate sheets are heated under pressure and formed. The separators are then removed and the feathered edges of two adjoining sheets are interleaved and the sheets are reheated under pressure forming an integrally formed lap-joint.Type: GrantFiled: January 3, 1984Date of Patent: January 29, 1985Assignee: The Boeing CompanyInventor: James D. Ritter
-
Patent number: 4473607Abstract: A walking-beam carrier for steel billets comprising a steel channel covered by blocks of refractory material having billet seats formed by transverse grooves. The blocks are dimensioned such that when placed in an end to end linear array and separated by mortar joints, the grooves are evenly spaced and compatible with the throw length of the walking-beam mechanism. Alignment slots are formed in the flats between grooves in the top surfaces of the block to facilitate installation.Type: GrantFiled: July 9, 1982Date of Patent: September 25, 1984Inventor: Gary R. Mannella
-
Patent number: 4471012Abstract: Laminated wood strip or plank flooring members are disclosed having adjacent edges of adjacent strip or plank members slightly reverse-beveled, i.e. 2.degree. to 7.degree. from vertical, to tightly fit together to provide precise, flush contact between adjacent upper surfaces of adjacent strips or planks. The strip or plank wood materials are provided in various lengths and various predetermined widths so that the random width and length strip or plank materials can be fitted together to provide a most unexpected and pleasing appearance wherein each adjacent strip or plank member is precisely fitted together and adjacent surface portions are substantially flush, or in contact.Type: GrantFiled: May 19, 1982Date of Patent: September 11, 1984Assignee: Masonite CorporationInventor: Thomas V. Maxwell
-
Patent number: 4468910Abstract: A floor mat assembly is disclosed which is molded from resilient plastic material, and made up of only two different elements, mat modules and ramp strips. The mat module comprises a rectangular shape with two adjoining edges, each of the edges having an upper coupling edge flap with a row of downward directed projections, and two other adjoining edges, each of the other edges having a lower coupling edge flap with a row of vertical holes to couple with a row of projections on an upper coupling edge flap of a ramp strip or an adjoining mat module. The ramp strip comprises a tapered face with an upper coupling edge flap adjacent the tapered face, and a lower coupling edge flap joined by a severable link to the upper coupling edge flap, the lower coupling edge flap of the ramp strip to couple with an upper coupling edge flap of a mat module, and when the link is severed, the upper coupling edge flap of the ramp strip to couple with a lower coupling edge flap of a mat module.Type: GrantFiled: March 23, 1983Date of Patent: September 4, 1984Inventor: Richard A. Morrison
-
Patent number: 4435457Abstract: A seamed non-woven fabric consisting of at least two thermoplastic non-woven fabric strips (1, 2) positioned side by side in the same plane, said strips of fabric being joined together at their opposite longitudinal edges by means of a melt seam. The edges of the strips to be joined together have been melt-shrunk into such a thickness that the thickness of the seam (4) formed by the joined edge portions (1b, 2b) of the strips does not exceed the thickness of the other portions of the strips. The strips of fabric are, at least at the edges to be joined together, provided with reinforcement yarns (3) parallel to said edges, the melting point of said yarns being higher than the melting temperature used during the melt-seaming. The reinforcement yarns provide in the seam a high strength in the longitudinal direction in spite of the melting of the edge portions of the strips.Type: GrantFiled: September 13, 1982Date of Patent: March 6, 1984Assignee: Tamfelt Oy ABInventors: Matti Servo, Matti Vainio
-
Patent number: 4435237Abstract: A method and apparatus are disclosed for forming a novel corrugated paperboard web of indefinite length, which web includes a planar facer layer and a corrugated layer the flutes of which extend longitudinally the length of the web. The web is formed by splicing together sections having offset planar facer and corrugated layers of generally equal dimensions, respectively, whereby at one end the facer layer projects beyond the corrugated layer and at the other end the corrugated layer projects beyond the facer layer, the flutes of the corrugated layer extending from one projecting end to the other. Successive sections are spliced together with the projecting facer layer portion of one section overlying the projecting corrugated portion and the facing layer of another section, preferably with the adjacent portions of the corrugated layers of the two sections being in flute-enmeshing engagement.Type: GrantFiled: August 18, 1978Date of Patent: March 6, 1984Assignee: Boise Cascade CorporationInventor: Walther J. Hoelzinger
-
Patent number: 4429012Abstract: A wood sheet-like product which comprises at least two sheets of wood and a pliable material bonded between the sheets. The wood and pliable material is bonded to form a unitary product and grooves through the wood sheets are spaced at intervals to facilitate bending of the product at the grooves. The sheet-like product is used to make wood honeycomb and corrugated wood by positioning grooves at predetermined locations on the product, bending the product into a certain configuration. In the case of honeycomb, adjacent strips of the product are adhered together in such a way as to form polygonal cells. To make corrugated wood one configuration has a series of high and low ridges secured to a facing skin. The methods of making the wood sheet-like product comprises inserting a pliable material between two sheets of wood bonding the sheets together and cutting a groove through the wood sheets but not through the pliable material.Type: GrantFiled: July 20, 1981Date of Patent: January 31, 1984Inventor: Peter Danko
-
Patent number: 4427107Abstract: The life of a joint in splice jointed conveyor belting is increased by providing a belting wherein the joint is protected by a covering of a breaker fabric having substantially different stretch characteristics in warp and weft directions. A suitable breaker fabric is a warp knitted fabric having a warp to weft elongation ratio of from 1:2 to 1:30, preferably 1:3 to 1:20, for example approximately 1:15. The conveyor belting may comprise a solid woven textile fabric core impregnated and/or coated with polyvinyl chloride and the joint may be one formed by finger splicing.Type: GrantFiled: May 12, 1980Date of Patent: January 24, 1984Assignee: J. H. Fenner & Co. Ltd.Inventors: Michael J. Roberts, Keith Saul
-
Patent number: 4390578Abstract: Two members 2, each located in a heat sealable sheath 4, are joined together to form a right-angle joint. Two plates 8 of heat sealable material are attached to the associated ends 6 of the members 2 by means of dowels 10 inserted into holes 12 in the member ends. The outer surface 14 of each plate 8 is flush with its associated sheath end 4. The mounted plates 8 are hot-plate welded and then pressed together with the ends of the sheaths 4 to form the joint. The plates 8 provide additional strength to the joint.Type: GrantFiled: March 2, 1981Date of Patent: June 28, 1983Assignee: Blacknell Buildings LimitedInventor: Douglas H. M. Brooks
-
Patent number: 4387128Abstract: A foldable structure (2) and a method of manufacturing a foldable structure which, when folded produces a curved edge or corner. The structure comprises two panel members (32,34) having a respective edge region (18,20) which are adjacent and are spaced apart. Each edge region has a shoulder (8,10) and a curved portion (12,14). A flexible elongated bridging piece (22) is located between the shoulders (8,10) and defines a foldable region. A flexible lamina (24) covers a respective face of the panel members (32,34) and the flexible bridging piece (22).Type: GrantFiled: July 8, 1980Date of Patent: June 7, 1983Assignee: Brymitre LimitedInventors: Roy O. Emms, William Rae, John Wilson
-
Patent number: 4380485Abstract: Disposable receptacles for storing articles in sterile condition and having breather means integral with the walls thereof, as well as apparatus and methods for making such receptacles and the materials therefor, are disclosed. The receptacles are fabricated of a laminate comprising a layer of breathable barrier material such as paper and a layer of thermoplastic, polymeric material such as polyethylene.The breather means may be made by heat sealing the thermoplastic layers of a pair of laminated sheets together at small, selected areas and then separating the sheets causing localized delamination of the layers and the formation of ruptured, blister-like projections in the thermoplastic layers at the heat seal positions.Type: GrantFiled: October 14, 1980Date of Patent: April 19, 1983Inventor: Samuel J. Schuster
-
Patent number: 4375490Abstract: A photographic film splicer includes a supporting pad or platform on which ends of photographic film strips are supported, and a movable heat block which applies heat and pressure to a heat activated splice tape and the film ends. A heated die attached to the heat block and a plurality of spring-loaded pins supported by the platform apply heat and pressure to a portion of one of the film ends proximate the splice tape to deform a portion of the film strip. The deformed area of the film strip acts as a ramp proximate the splice tape which guides film strips over the interface of the splice tape and the film strip during operations in which the web of photographic film is cut into individual lengths and in which the individual lengths of film are stacked.Type: GrantFiled: November 16, 1981Date of Patent: March 1, 1983Assignee: Pako CorporationInventors: Gerald A. Jensen, Ted G. Merry
-
Patent number: 4370184Abstract: A photographic film splicer includes a supporting pad or platform on which ends of photographic film strips are supported, and a movable heat block which applies heat and pressure to a heat activated splice tape and the film ends. A heated die attached to the heat block and a plurality of spring-loaded pins supported by the platform apply heat and pressure to a portion of one of the film ends proximate the splice tape to deform a portion of the film strip. The deformed area of the film strip acts as a ramp proximate the splice tape which guides film strips over the interface of the splice tape and the film strip during operations in which the web of photographic film is cut into individual lengths and in which the individual lengths of film are stacked.Type: GrantFiled: November 16, 1981Date of Patent: January 25, 1983Assignee: Pako CorporationInventors: Gerald A. Jensen, Ted G. Merry
-
Patent number: 4366014Abstract: One belting end 12 is joined to an adjacent belting end 13 using the apparatus shown in FIG. 3. The belting comprises a body element and a longitudinally extending constraining element embedded in the body element.The ends 12 and 13 are preferably shaped as shown in FIG. 4 and are pressed by the apparatus against opposite faces of a heating element 21. The application of heat and pressure causes the ends of the constraining element to be displaced transversely with respect to their associated body elements, the displacement of one end taking place in the opposite direction to the displacement of the other end so that in the finished joint the ends of the constraining element form an overlapping joint embedded in the fused material of the body element.Type: GrantFiled: April 6, 1981Date of Patent: December 28, 1982Assignee: Pollard V-Belt (Guernsey) LimitedInventor: Ernest Pollard
-
Patent number: 4364421Abstract: A woven textile fabric and seam is disclosed for joining dryer fabrics and the like papermaking clothing constructed of multiply woven fabric belting wherein each of the ends of the belting is separated into continuous woven superposed plys permitting insertion and securing of seam webbing between the plys at each end of the belting. The seam webbing is illustrated sandwiched between the separated plys and completely enclosed therein when the plys and webbing are secured together so that interruption of the otherwise continuous belting is minimized. Having affixed the webbing at ends of the woven fabric in this manner, pintle loops may be interlaced and fastened securely together by the insertion of pintle material. One of the separated plys may be advantageously woven to provide pintle loops when folded upon itself.Type: GrantFiled: May 18, 1979Date of Patent: December 21, 1982Assignee: Wangner Systems CorporationInventor: William R. Martin
-
Patent number: 4352843Abstract: A multiplanar device has at least one component that consists of two rigid plastic wall members that have major areas of substantially uniform thickness, strips of considerably greater thickness along the side portions of said wall members, and a miter joint between the two wall members. A continuous thin film of flexible plastic is bonded to the two wall members and around the outside of the miter joint.The method of making the component is to mold it as a flat intermediate piece with a V-notch between the strips of greater thickness and to simultaneously bond the film to the surface at the apex of the V; and to thereafter apply adhesive to the sides of the V and bend the piece to bring the sides of the notch together and bond them together.Several such components may be connected with other similar or dissimilar components at miter joints to form a complete multiplanar device.Type: GrantFiled: August 21, 1980Date of Patent: October 5, 1982Assignee: Thomas A. Schutz Co., Inc.Inventor: Ronald P. Eckert
-
Patent number: 4351866Abstract: A flexible strip facing material, formed from particles (2) of hard material bound together and secured on a perforated support (1) by means of a macromolecular binder, is adapted to be stuck by its rear face (5) to a wall or other surface in such a manner as to leave visible the face (4) covered with the particles. The edges (3 and 8) of the material are cut in bevels at the angles A and B in such a manner that when two strips are stuck edge to edge the joint between them remains imperceptible, the angle B being less than the angle A. This material is used as a facing for the protection and decoration of walls of buildings.Type: GrantFiled: June 26, 1980Date of Patent: September 28, 1982Inventors: Paul Mennesson, Hugues Moreau
-
Patent number: 4336086Abstract: A method of lining an interior surface of a furnace with roll-type insulation by attaching a plurality of hooks onto the interior surface to be lined, folding back portions of the roll-type insulation on themselves to create folds in the roll-type insulation, and pressing the folds onto the hooks to thereby attach the roll-type insulation to the interior surface. Each of the plurality of hooks includes a hook member for passage through portions of the roll-type insulation. Each hook member is fixedly attached to the interior surface of the furnace either by being welded directly thereto when the interior surface of the furnace is metal or by being fixedly attached to a plate member which is in turn bolted, riveted, or otherwise fixedly attached to the interior surface of the furnace. The hook member includes a leg portion having a pointed first end for passage through the roll-type insulation and having a second end.Type: GrantFiled: September 18, 1980Date of Patent: June 22, 1982Inventor: James P. Rast
-
Patent number: 4332849Abstract: The present invention relates to a device which is used to repair a damaged insulating jacket on an electrical cable. The device is shrunk down around the cable without the use of heat to provide an impervious, protective covering. More particularly, the invention includes a sheet or sleeve which is elongated and held in that state by removable support struts. After covering the damaged area of the cable jacket, the struts are withdrawn to allow the sheet or sleeve to shrink down around the cable.Type: GrantFiled: November 28, 1980Date of Patent: June 1, 1982Assignee: AMP IncorporatedInventors: Lee A. Barkus, Craig W. Simons
-
Patent number: 4321293Abstract: A stair mat is installed on the stairs by adapting an edge cushion cover and a tread mat on the tread of the stairs adjacent to each other; a rigid or semi-rigid fixing tongue is projected from the front edge of the tread mat, and the edge cushion cover is detachably set on the fixing tongue so as to cover the forward edge of the stairs.Type: GrantFiled: November 13, 1979Date of Patent: March 23, 1982Inventor: Hiromitsu Naka
-
Patent number: 4311756Abstract: The invention relates to a belt or apron for textile machines comprising a layer or lamination of a belt or apron as covered by U.S. Pat. No. 4,061,803 superimposed upon and bonded to a ply of resilient cellular polyurethane felt-like material.Type: GrantFiled: December 18, 1980Date of Patent: January 19, 1982Inventor: Wallace R. Brooksbank
-
Patent number: 4303707Abstract: This building component includes a peripheral sidewall and upper and lower walls forming a casing; a core of shredded waste material and an exterior plastic skin covering the casing. The method of making the component includes the steps of filling a peripheral form with shredded waste material, closing the form at the upper and lower ends incorporating it into the component by applying a reinforced plastic binder over the closed form. A modified component has a rectangular casing formed from structural members and is provided with a braced interior core.Type: GrantFiled: October 31, 1979Date of Patent: December 1, 1981Inventor: John Prior
-
Patent number: 4287693Abstract: A ventilated interlocking floor tile is disclosed comprising a lower layer including a heavy, substantially solid edge region provided with a plurality of interlocks for attachment with contiguous tiles and an upper layer securely fastened to the lower layer to form an upper floor surface including a unidirectional slip-resistant tread pattern. The solid edge region defines a cavity on the backside of the tile and includes a plurality of ventilating grooves extending from the cavity to the outer edge of the tile to accommodate the flow of air to and from the cavity.Type: GrantFiled: March 26, 1980Date of Patent: September 8, 1981Assignee: Pawling Rubber CorporationInventor: Roderick E. Collette
-
Patent number: 4287245Abstract: A heat insulator for pipe lines for transportation of low temperature fluids which includes a plurality of longitudinally divided hollow cylindrical heat-insulating units assembled to tightly cover the outer periphery of the pipe lines, characterized in that each heat-insulating unit is composed of a heat-insulating panel element of a circular arc in cross section made of a foamed synthetic resin overlaid and integrally combined with an elastic sheet capable of absorbing stress caused by shrinkage of the heat-insulating panel element at low temperature and a thin metal plate placed on the outer surface of the elastic sheet and integrally combined therewith and that a sealing means is applied to the longitudinal and transverse joint contact surfaces of the adjacent heat-insulating units.Type: GrantFiled: April 30, 1979Date of Patent: September 1, 1981Assignee: Nippon Asbestos Co., Ltd.Inventor: Siro Kikuchi
-
Patent number: 4279676Abstract: An improved method of splicing multi-ply belting material to form an endless belt. The upstream portion of the splice on each side of the belt has at least two plies of the material which have not been split, while each side of the belt on the downstream portion of the splice presents an overlying flap to a roller.Type: GrantFiled: September 6, 1979Date of Patent: July 21, 1981Assignee: Morrison Company, Inc.Inventors: Donald Morrison, William T. Muma, Jr.
-
Patent number: 4271222Abstract: The disclosure is of a composite papermakers felt made up of a textile base layer and an upper layer of a polymeric resin foam. The felt is useful in the wet press section of a papermaking machine. The disclosure is also of a method of manufacturing the felt of the invention.Type: GrantFiled: February 4, 1980Date of Patent: June 2, 1981Assignee: Albany International Corp.Inventor: Edward R. Hahn
-
Patent number: 4256791Abstract: A web-like laminated material with a projecting edge strip is disclosed. The laminated material comprises at least one carrier layer and at least one intermediate metal foil layer and at least one thermoplastic covering layer. The edge strip projects from at least one longitudinal edge of the carrier layer such that a portion of the layer of metal foil extends from the carrier layer and a wider portion of the covering thermoplastic layer extends from the metal foil layer. A method of manufacturing the web-like laminated material having such an edge strip is also disclosed.Type: GrantFiled: November 15, 1979Date of Patent: March 17, 1981Assignee: Tetra Pak International ABInventors: Sven N. H. Holmstrom, Knut A. Rosenberg
-
Patent number: 4242390Abstract: Floor tiles are disclosed which comprise a carrier layer and a superimposed floor surface forming layer which is provided with a decorative wear resistant surface. In one embodiment the carrier layer protrudes beyond the floor surface layer on two sides and the floor surface layer protrudes beyond the carrier layer on the other two sides and the floor surface forming layer defines an angular groove and a bevelled tongue to enable adjacent tiles to be interlocked. In an alternative embodiment of the invention the groove and tongue are formed to have different angles.Type: GrantFiled: March 22, 1978Date of Patent: December 30, 1980Assignee: AB Wicanders KorkfabrikerInventor: Jozsef Nemeth
-
Patent number: 4235952Abstract: The cured polyester or polyurethane adhesive bond seam joining two FRP (fiberglass reinforced plastic) parts, particularly in-mold coated FRP parts, is coated with a reactive polyepoxide resin-polyamide resinamine coating. After curing, sanding, sealing and painting, the seam area joining the parts did not exhibit any paint pops or sinks and the seam itself was invisible or nearly invisible.Type: GrantFiled: March 21, 1979Date of Patent: November 25, 1980Assignee: The General Tire & Rubber CompanyInventors: Richard G. Holmes, David R. Sponseller
-
Patent number: 4199632Abstract: For added strength and efficiency, the handles of impact or striking implements are weighted near their striking ends by the addition thereto of carefully pre-weighed supplemental veneers intervened with main veneers or by providing in a solid handle blank a head portion of increased thickness prior to compression. The mass of the handle at the striking end is effectively increased.Type: GrantFiled: June 16, 1976Date of Patent: April 22, 1980Inventor: Charles F. Travis
-
Patent number: 4183454Abstract: Welding backup having a train of rigid, heat-resistant tiles, the contiguous ends of which have round surfaces which provide knuckle joints. The round surfaces terminate in matching stops which limit the knuckle motion in either direction to 5-20 degrees.Type: GrantFiled: May 12, 1978Date of Patent: January 15, 1980Assignee: Minnesota Mining and Manufacturing CompanyInventor: John B. Snell
-
Patent number: 4136722Abstract: For added strength and efficiency, the handles of impact or striking implements are weighted near their striking ends by the addition thereto of carefully pre-weighed veneers or by providing in a solid handle blank a head portion of increased thickness prior to compression. The mass of the handle at the striking end is effectively increased.Type: GrantFiled: February 9, 1977Date of Patent: January 30, 1979Inventor: Charles F. Travis
-
Patent number: 4122222Abstract: Disclosed is a method and a preformed laminate useful in various forms for repairing holes and covering joints in drywall. The laminate comprises a sheet material backing having an overlay of plaster joint compound, or the like. The overlay has an outwardly tapered thickness. The laminate may be in circular, strip, or other form. The backing material is secured over the hole or joint, as the case may be, and a small amount of drywall joint compound is added around the perimeter to blend the patch into the wall surface.Type: GrantFiled: April 4, 1977Date of Patent: October 24, 1978Inventor: Robert Franklin Parker
-
Patent number: 4044182Abstract: A plurality of green veneer strips are positioned side by side in close contact and provided with inclined grooves or slits on the surface. Strings are embedded in the slits together with an adhesive for connecting the green veneer strips into a veneer core block for plywood.Type: GrantFiled: June 8, 1976Date of Patent: August 23, 1977Assignee: Hashimoto Denki Co., Ltd.Inventor: Noboru Aizawa
-
Patent number: 4015035Abstract: An improved manufacture including a fiber-reinforced epoxy composite joint, and the method for producing same, in which the fibers of each of the composite adherends pass through and are intermeshed across the joint bondline. A scarfed mating surface is prepared on the end of each of the adherend elements-to-be-joined, after which a chemical etching of the mating ends to obtain exposed lengths of filaments or fibers is provided. A sheet of unsupported adhesive material is inserted between the scarfed and etched mating surfaces prior to their layup, after which heat and pressure are applied for bonding the joint. The exposed fibers of each element cross the bondline to intermesh with those of the other element during the melting of the unsupported adhesive. This process increases the joint efficiency to 83% of the efficiency of a non-joined element.Type: GrantFiled: December 9, 1974Date of Patent: March 29, 1977Assignee: Lockheed Aircraft CorporationInventors: Leiv H. Blad, Robert F. Warkow
-
Patent number: 4001471Abstract: A container is made by folding a blank to define a receptacle, clamping the blank between a core tool and a cavity tool and seaming juxtaposed blank edges by injection moulding, one tool defining a recess overlying the juxtaposed edges and at least one preferred flow path being defined in that recess offset relative to the juxtaposed edges so that injected material clamps the edge region over which the preferred flow path lies against the other tool face opposite the recess to prevent injected material penetrating between the blank over which the preferred flow path lies and that other tool face.Type: GrantFiled: May 28, 1975Date of Patent: January 4, 1977Assignee: Airfix Industries LimitedInventor: Kenneth Francis Rumball
-
Patent number: 3996403Abstract: A joint having improved snag resistance and peel strength is formed between overlapping end portions of a thermoplastic strap. The thermoplastic strap is formed into a loop having overlapping inner and outer end portions which are joined to one another by a resolidified thin layer of formerly melted material from each of the overlapping strap end portions. Resolidified material extends completely to an inwardly tapered end of the outer strap end portion to provide the improved joint. A resolidified mass of formerly molten material also is present in front of the tapered end to further protect it against snagging.Type: GrantFiled: November 25, 1974Date of Patent: December 7, 1976Assignee: Signode CorporationInventors: Russell J. Gould, Karl Adams
-
Patent number: 3972762Abstract: A method for applying various coating liquids on the surface of a travelling web, such as plastic films, paper, metallic sheets, etc., with a discontinuity thereon, e.g., due to a connection of pieces of the web comprising preworking a web portion so that the web surface downstream of the discontinuity is coplanar to or higher than the maximum height of the discontinuity, whereby irregularities in coating of liquids are eliminated.Type: GrantFiled: September 3, 1974Date of Patent: August 3, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Sei Kawahara, Akira Takagi, Hirosi Nozawa
-
Patent number: 3973064Abstract: A joint construction formed by sonically welding the edges of sheets of oriented nylon. The coextensive edge portions of the nylon sheets are formed with generally complementary surfaces which are at an acute angle to the flat surfaces. A plurality of ridge portions extend from the complementary surfaces substantially parallel to the adjacent edges and concentrate sonic energy introduced into the joint at the interface of the complementary surfaces to form a weld joining the sheets, with the thickness of the completed joint being substantially the same thickness as an individual sheet.Type: GrantFiled: September 6, 1974Date of Patent: August 3, 1976Assignee: Moldex, Inc.Inventor: Ellis Howard Paine
-
Patent number: 3946530Abstract: A pedestal mountable structural panel is formed by lamination of a series of wraps about a core. A sawtooth arrangement of the junctions of corresponding laminar members of consecutive wraps provides an attractive, sturdy assembly without the use of braces. Additionally, the laminar arrangement of the wraps renders the panel readily adaptable for pedestal mounting on legs formed by a laminar arrangement of elongated members, also without the use of braces.Type: GrantFiled: December 23, 1974Date of Patent: March 30, 1976Inventor: Richard K. O'Grady