Added Bonding Material, E.g., Solder, Braze, Etc. Patents (Class 403/272)
  • Patent number: 4722630
    Abstract: A rotor-shaft assembly which includes a ceramic, solid hubbed turbine rotor having an integral stub shaft brazed within one end of a generally cylindrically shaped sleeve member. A metal shaft is either brazed or cold press fitted within the other end of the sleeve member in a torque transmitting relationship. The stub shaft is formed with an annular relief therearound in order to reduce the compressive forces acting on the stub shaft by the sleeve member.
    Type: Grant
    Filed: September 20, 1985
    Date of Patent: February 2, 1988
    Assignee: The Garrett Corporation
    Inventor: Ho T. Fang
  • Patent number: 4722632
    Abstract: A method of securing a window of crumbly material in the end of a tube so as to effectively prevent leakage during temperature cycling, first involving the step of selecting a window having a small clearance when placed inside the end of the tube. Any contamination is removed from the periphery of the window, and then a thin metallic layer that will accept nickel plate is vapor deposited around the periphery of the window. Subsequently, a hoop of tensilely stressed nickel plate is applied over the thin metallic layer, after which the window and tube are sweated together by the application of suitable amounts of solder and heat. Significantly, the hoop of nickel serves to keep the window in continuous compression, such that leakage between the window and tube is effectively prevented.
    Type: Grant
    Filed: October 14, 1986
    Date of Patent: February 2, 1988
    Assignee: Oerlikron-Buehrle AG
    Inventor: Harold L. Campbell
  • Patent number: 4679960
    Abstract: Several articles are disclosed consisting essentially of a ceramic shaft which fits into a recess in a metal shaft. The ceramic shaft is joined to the metal shaft by a ductile active brazing alloy.
    Type: Grant
    Filed: January 25, 1985
    Date of Patent: July 14, 1987
    Assignee: GTE Products Corporation
    Inventor: Howard Mizuhara
  • Patent number: 4673309
    Abstract: A method and an apparatus are described for anchoring cables, bundles of parallel or standard wire, or the like, of preferably high-tensile steel wire. At least one end of the cable or the like is introduced into a fixed anchoring socket and sealed with a pourable material. In order for the anchoring apparatus to have improved properties under static stress, and in particular under great dynamic stress, without requiring additional structural safety features, while enabling lower-cost manufacture, it is provided that the bundle be twisted and the bundle or cable opened for some distance from the associated end in such a manner that the wires or strands extend uniformly all the way through the conical inner region of the anchoring socket. Further, a metallic casting material is poured into the anchoring socket between the opened wires or strands, and a direct metal-to-metal joint is established between the metallic casting material and the wires or strands of the cable or bundle.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: June 16, 1987
    Inventors: Jorg Schlaich, Rudolf Bergermann
  • Patent number: 4668118
    Abstract: This invention relates to a tool with at least one wear-resistant hard metal part which serves to process production pieces, stones, or the like, wherein the hard metal part is firmly connected with a metallic carrier by solder located in at least one solder aperture. In order to reduce the danger of formation of tension cracks in the hard metal part, the invention provides that at least one predetermined weak point is created in the solder aperture.
    Type: Grant
    Filed: September 26, 1984
    Date of Patent: May 26, 1987
    Assignee: Siku GmbH
    Inventors: Anton Bucher, Peter Simon, Wilhelm King
  • Patent number: 4659245
    Abstract: A gas turbine including a joint structure is disclosed. According to the joint structure, a ceramic shaft is received in a bore formed in an end portion of a metallic shaft. Brazing filler metal made of Ag-Cu alloy is distributed between the closely fitted surfaces of the ceramic shaft and bore wall, and it extends axially toward the open end of the bore up to a predetermined plane where a ring seal groove formed on the end portion of the metallic shaft lies. The open end of the bore is closed to prevent entrance of exhaust gas into the bore.
    Type: Grant
    Filed: May 30, 1986
    Date of Patent: April 21, 1987
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Sumio Hirao, Kunio Maki
  • Patent number: 4647244
    Abstract: A method of securing a window of crumbly material in the end of a tube so as to effectively prevent leakage during temperature cycling, first involving the step of selecting a window having a small clearance when placed inside the end of the tube. Any contamination is removed from the periphery of the window, and then a thin metallic layer that will accept nickel plate is vapor deposited around the periphery of the window. Subsequently, a hoop of tensilly stressed nickel plate is applied over the thin metallic layer, after which the window and tube are sweated together by the application of suitable amounts of solder and heat. Significantly, the hoop of nickel serves to keep the window in continuous compression, such that leakage between the window and tube is effectively prevented.
    Type: Grant
    Filed: May 21, 1984
    Date of Patent: March 3, 1987
    Assignee: Werkzeugmaschinenfabrik Oerlikon-Buehrle AG
    Inventor: Harold L. Campbell
  • Patent number: 4625437
    Abstract: A digging bucket lip is provided with one or more shrouds, each shroud having a blunt forward portion and a rearward portion divided into two spaced-apart legs. There are apertures through the legs, preferably in alignment. Rings are slidably disposed in the apertures and are welded on their inner margins to the lip disposed between the legs.
    Type: Grant
    Filed: April 15, 1985
    Date of Patent: December 2, 1986
    Assignee: Engineered Equipment Company
    Inventors: Linden T. Curtis, William G. Franklin, John R. Olds
  • Patent number: 4625260
    Abstract: A fastener is provided for mounting a heat sink to the surface of a circuit board. The fastener includes a body having structure extending from the body for engaging the heat sink. The body further includes structure extending in a direction opposite the engaging structure for contacting the surface of the circuit board. The contacting structure includes a surface parallel to the surface of the circuit board and is coated with a solder-promoting material for surface mounting the heat sink to the circuit board.
    Type: Grant
    Filed: August 24, 1984
    Date of Patent: November 25, 1986
    Assignee: Thermalloy Incorporated
    Inventors: William D. Jordan, Donald L. Clemens
  • Patent number: 4582243
    Abstract: A die (40) for extrusion of optical grade fibers has its hard insert (42) placed under compression within a sleeve (44). Sleeve (44) is provided with a tapered interior surface (50) which matches the tapered exterior surface (48) of the insert (42). A metal lubricating layer (60) is provided between the tapered surfaces. The insert is pressed in to obtain compressive prestressing thereof, and the lubricating metal diffuses at the tapered surfaces to lock the insert in the sleeve.
    Type: Grant
    Filed: December 14, 1984
    Date of Patent: April 15, 1986
    Assignee: Hughes Aircraft Company
    Inventor: Jon H. Myer
  • Patent number: 4579652
    Abstract: Disk screen shaft assemblies have an array of concentric annular toothed disks mounted in axially spaced relation on and along shaft perimeters, with the inner diameters of the disks having bevelled edges welded to the shaft perimeters in a manner to confine the welding to the grooves defined by the bevelled edges with the shaft perimeters. Method and apparatus for mounting and welding the disks successively on the shaft perimeters attains accurate, warp free and effective mounting and welding of the disks to the shaft perimeters.
    Type: Grant
    Filed: October 28, 1983
    Date of Patent: April 1, 1986
    Assignee: Beloit Corporation
    Inventor: Joseph B. Bielagus
  • Patent number: 4565383
    Abstract: Front and rear wheel drop outs for bicycle frames that are specially suited for bicycle frames of the tubular strut type used in light weight high performance high quality bicycles, the frames of which comprise a plurality of tubular strut members interconnected by lugs and brackets to form the well known generally diamond shaped frame that includes the familiar head, top, down, and seat tubes, the familiar pair of seat stay tubes, and the familiar pair of chain stay tubes. The invention provides for a special front wheel fork tip arrangement of the drop out type that is applied and brazed, socket fitted, relation to each fork blade of the front wheel mounting fork assembly, and a special rear wheel drop out bracket arrangement involving right hand side and left hand side drop outs that are formed to receive in brazed, socket fitted, relation the bicycle frame seat stay tube and the frame chain stay tube that is to be made fast to same.
    Type: Grant
    Filed: February 3, 1984
    Date of Patent: January 21, 1986
    Assignee: Trek Bicycle Corporation
    Inventor: Timothy S. Isaac
  • Patent number: 4561670
    Abstract: A pipe frame for a two or three-wheeled vehicle is formed by joining lugs having pipe receptors to other frame components such as seat rails and back stays. The parts are dimensioned so as to provide a slight clearance into which thermosetting resin is inserted. After assembly and finishing of the frame, the resin is set simultaneously with the baking on of the finish.
    Type: Grant
    Filed: May 23, 1983
    Date of Patent: December 31, 1985
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventor: Minoru Takada
  • Patent number: 4532681
    Abstract: A safety belt coupling device which comprises components mutually attached by a heat degradable adhesive, such as a low-melting solder. At a predetermined temperature, degradation of the adhesive occurs, which allows the components to separate and thus release the safety belt.
    Type: Grant
    Filed: March 23, 1981
    Date of Patent: August 6, 1985
    Inventors: Edward H. Baker, George R. King
  • Patent number: 4509880
    Abstract: A very high hermeticity glass to metal seal comprising a round cylindrically shaped glass member having an outside diameter; a tubular sleeve of resilient metal having (i) a first end with an inside diameter slightly larger than said outside diameter of said glass member, and (ii) a reduced diameter portion adjacent to said first end thereof with the diameter of said reduced diameter portion being slightly smaller than the outside diameter of the glass member; a thin metalized layer on a first end of the glass member adapted to be inserted into said first end of the tubular metal sleeve so as to define an annular gap therebetween, the glass member being inserted as far as possible into the sleeve so that the end thereof is into abutting relation with said reduced diameter portion of said sleeve so as to form a capillary gap therebetween.
    Type: Grant
    Filed: March 30, 1981
    Date of Patent: April 9, 1985
    Assignee: Honeywell Inc.
    Inventor: David B. Wamstad
  • Patent number: 4455468
    Abstract: An improved process is disclosed for splicing metal shafts, in which a pair of shafts (10, 12 or 44, 46) having transverse end surfaces (30, 32 or 54, 56) preferably substantially normal to the axes of the shafts, are positioned coaxially with an insert (34, 48) positioned between and abutted to the end surfaces. The insert is tapered or wedge-shaped at either end to define transverse contact surfaces (18) which abut the end surfaces of the shafts. The angle (.beta.) of the taper on the insert permits insertion of a consumable arc welding electrode (20) into the convergent space defined between the end surfaces of the shafts and the tapered surfaces of the insert and is large enough to allow the arc welding electrode to be positioned at locations not only sufficiently spaced from both the tapered surfaces and the end surfaces but also sufficiently close to the area of abutment between the contact and end surfaces, to ensure proper welding penetration into the base metals.
    Type: Grant
    Filed: July 10, 1981
    Date of Patent: June 19, 1984
    Inventor: J. Glenn Satterthwaite
  • Patent number: 4425048
    Abstract: A joint for interconnecting a main pipe and an auxiliary pipe of a framework structure. The joint is adapted to envelope the main pipe and to be fixed thereto and is provided with an expanded portion. The auxiliary pipe is adapted to be fixed to the expanded portion of the joint so that the main pipe and the auxiliary pipe are connected to each other through the joint.
    Type: Grant
    Filed: April 17, 1981
    Date of Patent: January 10, 1984
    Assignee: Hitachi, Ltd.
    Inventors: Hideaki Kamohara, Minoru Imamura, Hiroshi Higaki, Yuji Yoshitomi, Syuzo Uno, Kazuhiro Makino, Hiroshi Nomura
  • Patent number: 4360289
    Abstract: A pin designed to be attached to a solid state module for making connection between the module and other parts of a metallurgical system. The end of the pin that is to be brazed to the module has a sloping (e.g., conical or wedge) shaped head so that gas bubbles can readily escape during brazing, thus reducing voids in the braze.
    Type: Grant
    Filed: June 30, 1980
    Date of Patent: November 23, 1982
    Assignee: International Business Machines Corporation
    Inventors: Armando S. Cammarano, Giulio DiGiacomo
  • Patent number: 4359599
    Abstract: Two improvements to the electrical conductor connection disclosed in U.S. Pat. No. 4,163,869. The first is a new and improved process for forming by means of multiple timed MIG arc welding, an electrical connection between at least two lapped aluminum conductors, wherein neither conductor member has a pilot hole, thereby eliminating preforming and alignment requirements. The improved process produces the same full penetration weld with the same highly desirable substantially cylindrical weld nugget as the process of U.S. Pat. No. 4,163,869 with a preformed pilot hole does. The second improvement is a new and superior electrical conductor connection and a method of forming same between at least two lapped aluminum conductors. The connection so formed includes a weld nugget having a substantially rectangular cross-sectional configuration at the interface. The rectangular shape of the weld nugget at the interface increases the mechanical torque capacity and the electrical conductivity of the connection.
    Type: Grant
    Filed: February 13, 1980
    Date of Patent: November 16, 1982
    Assignee: Westinghouse Electric Corp.
    Inventor: Henry F. Benner
  • Patent number: 4353705
    Abstract: An improved drive assembly for a powered chain saw or the like, which drive assembly includes a drive sprocket having a hub portion centrally and presenting a hub extension at one end for coaxially registering within the centered opening of the end wall of a clutch drum, and an axially extending apertured reinforcing washer disposed between the teeth of the sprocket wheel and surrounding the tips thereof in the region of abutment of the drive sprocket and clutch drum so as to register within the recesses of the sprocket teeth and present an extended joining area therebetween for securing same against separation.
    Type: Grant
    Filed: January 16, 1980
    Date of Patent: October 12, 1982
    Assignee: Windsor Machine Company Limited
    Inventors: Dennis G. Scott-Jackson, Hui C. Lim
  • Patent number: 4352714
    Abstract: A method for metallurgically bonding a ceramic element to a metal member to produce a seal for electrochemical cells whereby the ceramic element is first plated with a metal that can be chemically removed prior to or subsequent to the bonding of the components together using a fusible metal.
    Type: Grant
    Filed: September 29, 1980
    Date of Patent: October 5, 1982
    Assignee: Union Carbide Corporation
    Inventors: Charlton A. Patterson, Richard M. Wilson
  • Patent number: 4348131
    Abstract: A welded structure and a method for making same wherein a plurality of weld metals, such as martensitic steel and austenitic steel, differing in coefficient of thermal expansion from each other are deposited in a plurality of layers thicknesswise of the welded structure in a gap defined by structural members to be welded in such a manner that a layer of the weld metal of higher coefficient of thermal expansion is covered by a layer of the weld metal of lower coefficient of thermal expansion in a weld formed, to improve brittle fracture strength, fatigue strength and stress corrosion cracking resistance of the weld. By subjecting the welded structure to stress relief annealing treatment, it is possible to produce compressive stress on the surface of the layer of the weld metal of lower coefficient of thermal expansion.
    Type: Grant
    Filed: May 6, 1980
    Date of Patent: September 7, 1982
    Assignee: Hitachi, Ltd.
    Inventors: Shizuka Shimanuki, Toshimi Matsumoto, Hiroshi Sato, Tsutomu Onuma, Seishin Kirihara
  • Patent number: 4226479
    Abstract: A wire spoke, non-suspension type, automotive wheel in which the spokes are operably untensioned prior to vehicle loads being placed upon the wheel. An outer tubeless tire rim with a drop center is mounted to a wheel center which includes a substantially thick and solid felly connected to a concentrically positioned hub. Wire spokes extend radially outward from the hub in circumferential array and have tenons or feet on inner ends thereof which are anchored within recesses at front and rear ends of the hub. Radially outer ends of the spokes are plain terminations welded in the shape of a plug anchor within circumferentially spaced bores in the felly to secure the spokes and permit wheel formations which exhibit the classic beauty and elegance of a suspension wire spoke wheel, combined with durability, strength and ease of construction.
    Type: Grant
    Filed: June 23, 1978
    Date of Patent: October 7, 1980
    Assignee: Weldwheels, Inc.
    Inventor: Richard G. Weld
  • Patent number: 4225262
    Abstract: Use of niobium coatings in brazing ceramic and metal bodies particularly for forming hermetic ceramic-metal seals.
    Type: Grant
    Filed: January 11, 1979
    Date of Patent: September 30, 1980
    Assignee: Medtronic, Inc.
    Inventors: Nicholas S. Koop, William J. Morrissey
  • Patent number: 4214642
    Abstract: A power assisted steering mechanism comprises a steering column in two parts which are connected by a plain cylindrical torsion bar which may be solid or hollow and which allows a certain degree of relative angular displacement. An abutment is also provided to prevent excessive relative angular displacement resulting from failure of the torsion bar. The torsion bar has one of its ends bonded to one of the parts in any relative angular position and the other end is bonded to the other part as by welding, brazing or adhesive bonding, and a power assistance means are adapted device operates in response to relative movement of the parts resulting from a steering movement.
    Type: Grant
    Filed: February 14, 1978
    Date of Patent: July 29, 1980
    Assignee: Societe Anonyme Francaise du Ferodo
    Inventor: Jean L. R. Dauvergne
  • Patent number: 4209123
    Abstract: A process for joining together parent parts made from wrought austenitic stainless steel without sensitization of the parent material, and the product produced by this process. Each wrought workpiece has welded thereto an appendage made from cast (not wrought) austenitic stainless steel which is equal to or better in corrosion resistance and mechanical properties, and is compatible with the solution heat treatment requirements of the parent austenitic stainless steels. The resulting workpiece is solution heat treated at in-process stages of manufacture to dissolve the carbides which have been formed in the heat affected zone created by the welding operation. Then two of said workpieces are welded together at the abutment of the appendages, there being no formation of precipitated carbides in the parent material, because the heat affected zone does not extend into the wrought parent material, but instead is restricted to the appendage which by definition is not sensitizable.
    Type: Grant
    Filed: April 23, 1979
    Date of Patent: June 24, 1980
    Inventor: Matthew C. Jay
  • Patent number: 4206657
    Abstract: The invention is directed to a power driven tool for reciprocating a cutting element such as a saw-blade or the like and includes a motor housing and a drive motor mounted in the motor housing. A gear case is connected to the motor housing and the shaft arrangement is mounted in the gear case. The shaft arrangement includes a shaft slideably mounted in the gear case for reciprocating movement. The shaft is adapted to receive the cutting element thereon. A U-shaped channel yoke is mounted to the drive shaft in such a manner that the walls of the drive shaft laterally support the U-shaped channel yoke at the base of the yoke. An eccentric drive connects the U-shaped channel yoke with the drive motor for reciprocating the shaft arrangement.A method of assembling the shaft arrangement includes the step of cutting two slots in the base of the channel yoke to define three bridges one adjacent the other bridging the gap between the leg walls of the yoke.
    Type: Grant
    Filed: October 19, 1977
    Date of Patent: June 10, 1980
    Assignee: Black & Decker Inc.
    Inventor: Bernhard Palm
  • Patent number: 4196309
    Abstract: A semiconductor device subassembly of an elongated conductive lead member, a refractory metal slug and a brazing disk is constructed by mechanically securing the slug to the lead member, assembling the brazing disc to contact both the slug and the lead member and thereafter brazing the slug and the lead member together.
    Type: Grant
    Filed: January 30, 1978
    Date of Patent: April 1, 1980
    Inventor: Robert G. Thomas
  • Patent number: 4189249
    Abstract: A replacement torque rod assembly for field and maintenance installation which includes ball joint assemblies, each having a housing rod extending therefrom to position in butting relation after being cut to a dimension to span a predetermined distance for assembly and a telescoping sleeve overlying the abutting ends and welded to said ends to provide a rigid torque rod for field installation.
    Type: Grant
    Filed: September 22, 1978
    Date of Patent: February 19, 1980
    Assignee: Gulf & Western Manufacturing Company
    Inventors: Donald R. Gaines, Jon M. Smallegan, William H. Trudeau
  • Patent number: 4188140
    Abstract: A welded joint between pipes and pressure bearing elements, such as tube plates, pressure tanks, accumulators, or the like. The pipes and elements have a lip-shaped extension in the joint region. The joint connection is effected in this joint region by a full through-weld which is substantially free of crevices. The joint connection of pipe-to-element lies within the region where the pipe penetrates the element. A free space remains below the element lip between the pipe and the element. The space which is located above the element lip, and which is defined or bordered by the element lip, the pipe, and a centering bushing or sleeve known per se, is filled up with welding material. The centering bushing serves only as a temporary aid during the welding operation and is removed, e.g. is bored out, after the welding operation has been completed.
    Type: Grant
    Filed: March 8, 1978
    Date of Patent: February 12, 1980
    Assignee: L. & C. Steinmuller GmbH
    Inventors: Kurt Clemens, Hans Klein, deceased
  • Patent number: 4182950
    Abstract: A weld joint configuration facilitating the connection of two closely positioned workpieces having spaced apart end surfaces comprising sidewalls of a weld joint space. One of said workpieces has a tongue projecting therefrom that is received at least in part in a groove formed in the other of the workpieces. The interface between the tongue and a surface of the other workpiece partially defining the groove comprises a weld joint parting line. An extension projecting from at least one of the workpieces provides workpiece material located between this parting line and the weld joint space. When the workpieces are welded electrode material and the extensions are mixed to form a composite weld having a root portion with a parting line extending substantially tangentially from the root portion.
    Type: Grant
    Filed: January 12, 1978
    Date of Patent: January 8, 1980
    Inventor: Lawrence A. Boros
  • Patent number: 4163869
    Abstract: An electrical conductor connection between at least two aluminum conductors which includes a weld nugget having a substantially cylindrical cross-sectional configuration perpendicular to the major surfaces of the aluminum conductors. The ends of the weld nugget are convexly cupped and extend outwardly past the major surfaces of the aluminum conductors to provide visual verification of joint integrity. The electrical conductor connection is formed by a method which includes providing an aperture in one of the conductors to be joined and providing a recessed backup against the other conductor, aligned with the aperture. Timed, multiple sequence MIG arc spot welding provides a weld nugget having the desired shape and diameter at the interface or throat between the two conductors. The method also enables the welding operation to be performed out of position, without sag or run of the molten pool of aluminum.
    Type: Grant
    Filed: November 2, 1977
    Date of Patent: August 7, 1979
    Assignee: Westinghouse Electric Corp.
    Inventors: John Z. Almand, III, Henry F. Benner, William J. Reichenecker
  • Patent number: 4159187
    Abstract: A brake lever connection is formed from a tube with a two-piece jaw welded to each end, each jaw having laterally spaced side portions merging at one end into end portions engaging each other to form the inner end of the jaw, which has a first frusto-conical surface tapered toward the other jaw and merging into a smaller diameter frusto-conical surface tapered less sharply. The larger end of the smaller conical surface has about the same diameter as the inside of the tube, into an end of which the smaller conical surface is inserted. The end walls of the tube form with the first conical surfaces annular recesses filled with welding metal that joins the jaws to the ends of the tube.
    Type: Grant
    Filed: August 30, 1978
    Date of Patent: June 26, 1979
    Assignee: Schaefer Equipment Incorporated
    Inventor: Roland E. Cale
  • Patent number: 4152540
    Abstract: A feedthrough connector for use on an implantable electronic cardiac pacer. A single structure provides a means for connecting a heart lead to the pacer and feedthrough into the body of the pacer. The feedthrough may include filtering means to protect against external interferences. The entire structure has provisions for physical compliance to absorb stresses due to different heat coefficients and as may be caused during assembly and use. Also disclosed is a method for making the feedthrough connector.
    Type: Grant
    Filed: May 3, 1977
    Date of Patent: May 1, 1979
    Assignee: American Pacemaker Corporation
    Inventors: Donald A. Duncan, Lawrence E. Brown
  • Patent number: 4144404
    Abstract: The invention relates to a connector and method of connecting electrical conductors or other substrates. It is particularly suited to making connections between coaxial cables, even those having different diameters. The connector is a shell comprising a hollow heat-recoverable member having two open ends, an electrically conductive deformable member disposed within the heat-recoverable member and a quantity of solder also disposed within the heat-recoverable member. To make a connection, the conductors are inserted into different ends of the sleeve and the assembly heated to cause recovery of the heat-recoverable member. The recovery force of the recoverable member deforms the deformable member into close contact with the conductors to provide mechanical strength to the connection and electrical contact between the conductors. The heat used to bring about recovery also fuses the solder to improve both the mechanical and electrical integrity of the connection.
    Type: Grant
    Filed: August 18, 1976
    Date of Patent: March 13, 1979
    Inventors: Pierre De Groef, Frank Selleslags
  • Patent number: 4129744
    Abstract: A solder connection between an aluminum and copper conductor includes cladding a strand of aluminum wire with a copper coating, severing the cladded aluminum wire to a suitable length and soldering the severed end to the strand of copper wire with a lead-tin solder forming a hermetical seal about the soldered joint including any portion of the aluminum exposed to the ambient at the joint prior to soldering.
    Type: Grant
    Filed: August 2, 1976
    Date of Patent: December 12, 1978
    Assignee: RCA Corporation
    Inventors: Thomas J. Cunningham, Harold L. Schwartzberg, deceased, Joseph L. McGlynn, Jr., executor
  • Patent number: 4129242
    Abstract: The capacitive fluid pressure transducers described herein comprise quartz bodies and diaphragms having suitable electrodes deposited thereon to form both sensing and reference capacitors in appropriate configurations for high fidelity measurement of relative blood pressure, said transducers being substantially unaffected by temperature and other environment factors.
    Type: Grant
    Filed: May 18, 1977
    Date of Patent: December 12, 1978
    Assignee: Hewlett-Packard Company
    Inventors: J. Fleming Dias, Henry E. Karrer, Alexander Tykulsky
  • Patent number: 4111572
    Abstract: Magnetohydrodynamic devices using hot ionized gas as working fluid require channel refractories, insulators, and electrodes to be cooled at their reverse sides in order to carry away heat flux fast enough to keep obverse sides below melting point, since gas temperatures of roughly 2500.degree. C. exceed melting points of any available metals or ceramics. Common procedure of brazing ceramic to metal backing (which is more conveniently fastened in apparatus and cooled) creates only partially solvable problem of differential thermal expansion, or bad fit. Ceramic reverse is grooved with dovetailed or convergent slots against which brazing stock is placed for brazing to metal backing. During brazing, molten braze alloy enters grooves and forms mechanical lock which on test proves stronger than ceramic itself.
    Type: Grant
    Filed: March 10, 1977
    Date of Patent: September 5, 1978
    Assignee: General Electric Company
    Inventors: Michael J. Noone, Arno Gatti
  • Patent number: 4101230
    Abstract: The present invention relates to a joint for trusses, preferably trusses where the force transmitting members mainly consist of tubes having relatively large diameters.
    Type: Grant
    Filed: March 18, 1976
    Date of Patent: July 18, 1978
    Inventor: Per H. Moe
  • Patent number: 4076163
    Abstract: An improved thermite-type coupler for the splicing of bar-like structures such as reinforcement bars, of the type having an outer sleeve; an inner sleeve located within the outer sleeve; two collar members, each joining one end of the outer sleeve to one end of the inner sleeve; the area defined between the inner sleeve and the outer sleeve containing a thermite-type mixture and the area within the inner sleeve forming an annular space utilized for insertion of the ends of two bar-like structures, including means for igniting the thermite-type mixture and means for allowing the thermite-type reaction products after ignition to enter the annular space under pressure thereby, upon solidification, splicing the bar-like structures together having the improvement wherein the means for allowing the thermite-type reaction products afer ignition to enter the annular space comprises the inner sleeve having a multiplicity of perforations distributed over its surface.
    Type: Grant
    Filed: August 13, 1976
    Date of Patent: February 28, 1978
    Inventor: Edvard Grande
  • Patent number: 4073427
    Abstract: An improved wall construction and method of fabrication is disclosed in which a wall assembly is comprised of a base metal layer of mild steel with a bonded intermediate layer of copper and a bonded layer of corrosion resistant material containing a fusion weld joining the steel base metal members with the root of the fusion weld abutting an inlaid insert of the corrosion resistant material, a fusion weld joining the layer of corrosion resistant material of the members to each other and to the inlaid insert of corrosion resistant material to provide a relatively smooth surface in the corrosion resistant layer, with the intermediate copper layer removed from the weld areas.
    Type: Grant
    Filed: October 7, 1976
    Date of Patent: February 14, 1978
    Assignee: Fansteel Inc.
    Inventors: Hibbard G. Keifert, Einar R. Jenstrom
  • Patent number: 4068964
    Abstract: An improvement on the end plate shear connection (Table IX, Section 4-57, Seventh Edition A I S C Manual of Steel Construction) in which the end plate has an integral stem plate at right angles to the end plate and offset from the center line of the end plate to compensate for the web thickness of the beam to which the end plate is to be connected. The end plate is secured to the web of the beam by a shop weld with the weld adjacent the end plate fully penetrating the web, the stem plate and the end plate. Before welding, the stem plate is clamped to the web and minor adjustments made so that when welded the finished length of the beam will be proper and the end plate will be properly located and aligned with the center line of the beam. The end plate - stem plate unit is prefabricated in stock sizes. The unit may be a rolled shape. The stem plate may be joined to the end plate by a single fillet weld at the junction between the stem plate and the end plate remote from the web.
    Type: Grant
    Filed: February 9, 1977
    Date of Patent: January 17, 1978
    Inventor: Robert J. Stoker
  • Patent number: 4033668
    Abstract: The present invention relates to the joining of a first glass member, such as an optical fiber, to a second member by means of solderable splices and terminations which additionally can form hermetic seals. To form the splice, termination or seal, the peripheral surface of the glass member is coated in the area of the intended joint between members with a thin adhering metallic layer. The coated glass member is properly positioned adjacent the second member and solder is flowed around the joint between the members. Where the second member is also formed of glass, a thin adhering metallic coating layer is similarly formed on the peripheral surface thereof in the area of the intended joint prior to solder being applied.
    Type: Grant
    Filed: April 8, 1976
    Date of Patent: July 5, 1977
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventor: Herman Melvin Presby
  • Patent number: 4032243
    Abstract: A wall assembly and method for making the same which consists essentially of a layer of first metallic material and a layer of second metallic material, each layer having one face in a face-to-face contact, either bonded or unbonded relation with a face of the other layer, containing a fusion weld joining two members of the first layer, and fusion welds joining the layer of second material of such member in edge abutting relation to an inlaid insert over a flush insert of second material inset into said first layer so as to provide a relatively smooth surface in the second material of the wall.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: June 28, 1977
    Assignee: Fansteel Inc.
    Inventors: Hibbard G. Keifert, Frank J. Waters, deceased
  • Patent number: 4030849
    Abstract: An improved composite wall construction and method for fabrication or repair of equipment having layered metals forming a corrosion resistant liner on a structural metal backing which includes fusion welding the abutting ends of the backing metal to an interposed base strip, bridging these ends and welds with an inlay strip of liner material underlying the ends of the liner material, and fusion welding the ends of the liner material to each other and to the inlay strip.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: June 21, 1977
    Assignee: Fansteel Inc.
    Inventors: Hibbard G. Keifert, Frank J. Waters, deceased
  • Patent number: 4030848
    Abstract: An improved composite wall construction and method of fabrication is disclosed in which a wall assembly is comprised of a base metal layer and a layer of corrosion resistant material containing an intermediate filler of base metal fusion welded to the original base metal members and to an inlaid insert of base metal at the weld root, and a fusion weld joining the layer of corrosion resistant material to provide a relatively smooth surface in the corrosion resistant layer.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: June 21, 1977
    Assignee: Fansteel Inc.
    Inventors: Hibbard G. Keifert, Frank J. Waters, deceased
  • Patent number: 4012055
    Abstract: There is disclosed an extension for a motorcycle fork of the type including a downwardly biased damper and having its upper extremity received in a hollow fork tine and having its bottom extremity secured to the bottom end of a hollow slider which has its upper extremities telescoped over such tine. The bottom wall of the slider is severed from the slider itself and the damper rod extended and severed medially. A damper rod extension of a predetermined length is fitted between the top and bottom sections of such damper rod and has its opposite ends affixed to the medial ends of the damper rod sections. The damper rod is then retracted into the tine and a slider extension formed with an extension chamber having an axial length at least equal to such predetermined length is fitted over the lower end of such damper rod and affixed thereto. The slider extension is then secured to the lower extremity of such slider as by welding.
    Type: Grant
    Filed: March 22, 1976
    Date of Patent: March 15, 1977
    Inventor: Robert J. Ottow
  • Patent number: 3995964
    Abstract: Herein is described an article for encapsulating in separate compartments a plurality of elongate substrates. Typically the substrates comprise the union or junction between pair of electrical conductors or similar structures. The article comprises a heat recoverable outer tubular member and an inner spacer member to divide the space within the outer member into separate compartments. In particularly preferred embodiments, the article also comprises a fusible insert which will melt when the outer member is heated to cause its recovery. The fusible member can flow about the substrate. If the fusible member comprises, for example, solder, the article can be employed to simultaneously incapsulate and form a secure electrical connection between electrical conductors at their union.
    Type: Grant
    Filed: September 8, 1975
    Date of Patent: December 7, 1976
    Assignee: N.V. Raychem S.A.
    Inventor: Pierre De Groef
  • Patent number: 3986784
    Abstract: A weldment wherein two members are joined by a weld bounded at a back portion by a back-up member providing improved weld penetration and prevention of undesirable conditions in the weld such as root gaps or blow-throughs. The back-up member may comprise an elongated element secured to the surface of one member and, more specifically, may be welded thereto by a continuous weld.
    Type: Grant
    Filed: April 9, 1975
    Date of Patent: October 19, 1976
    Assignee: Caterpillar Tractor Co.
    Inventor: Larry G. Eftefield
  • Patent number: 3976078
    Abstract: The needle unit is particularly adapted for use in acupuncture treatments and consists of a flexible needle member formed with a pointed end portion having an angle of about four degrees relative to the longitudinal axis of the needle. The angle is formed by axially advancing the needle transversely of the axis of a rotatable forming or grinding tool. A tubular handle member is mounted about the opposite end portion of the needle member with the outer end thereof substantially flush with the corresponding end face of the needle member. The handle member is rigidly secured to the needle member by the application of a silver solder about the needle at opposite ends of the handle member.
    Type: Grant
    Filed: November 22, 1974
    Date of Patent: August 24, 1976
    Assignee: Meridian Corporation
    Inventor: Danti Toriello