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4668315 Silicone elastomer based roofing system  
A method of constructing a weatherproof coating over a roof comprises laying a piece or pieces of cloth over a roof, bonding the pieces of cloth together at any seams, adhering the cloth to the...
4663206 Stress relief and edge sealing of welded joints in plastics parts  
In order to stress relieve exposed portions of plastic welds, and thereby reduce susceptability of such welds to solvent-induced crazing and cracking, the welded parts are formed with flanges...
4648926 Electrically-isolating coupler suitable for high pressure cryogenic gas flow  
A coupler for electrically-isolating two conductive sections of fluid-passing line includes two nonconductively-interconnected pieces of tubing for insertion in the line. The pieces of tubing each...
4645146 Window Panel  
A window panel for an unpressurized aircraft has an outer glass sheet and an inner sheet of plastics material. A peripheral adhesive band is adhered to the exposed face of the inner sheet and has...
4645557 Method of establishing sealed pipe lengths of plastic pipes by joining of pipe elements, particularly district heating pipe lengths  
A method of joining plastic pipes by welding, whereby juxtaposed ends of the plastic pipes welded together along a peripheral annular welding zone presenting a discontinuous meeting area between...
4633063 Vented heating element for sterile cutting and welding together of thermoplastic tubes  
A heating element for sterilely melt-cutting and welding together a pair of thermoplastic tubes transversely of the axis of the tubes includes an outer folded metal sheet, such as copper,...
4618168 Apparatus for the heat-sealing thermoplastic conduits with a bridging conductor  
A system for heat-sealing thermoplastic conduits involves a thermoplastic sleeve surrounding an electrically conductive heating wire arranged in a coil. A bridging conductor is located adjacent...
4610742 Methods and materials for splicing tubular food casings  
The tubular food casings and especially wet sausage casings are spliced together by means of splicing tape comprising cellulose backing coated with a saran polymer. The tape and joined casing...
4601768 Method and apparatus for treating plastic welds to relieve stresses therein  
To relieve stresses in a plastic weld which may weaken the weld and increase its susceptibility to solvent-induced crazing or cracking, forces are applied to the weld zone (the interface between...
4601927 Welding of plastic parts  
Joints between thermoplastic parts are friction welded (e.g., as by vibration welding) or otherwise thermally welded in such a manner that a non-uniform temperature distribution results during...
4584040 Carpet seaming apparatus  
An apparatus and process for improving the method of joining abutting carpet seams with an underlying reinforced adhesive tape. The apparatus comprises a flexible elongated backing of non-stick...
4581091 Carpet tape layer  
An apparatus and method for dispensing carpet seam tape below and centered with respect to juxtaposed edges of adjacent carpet sections. The apparatus includes a tape holding container having a...
4563231 Tubular casing, process for its manufacture, and its use as a sausage casing  
Disclosed is a tubular casing of fiber-reinforced regenerated cellulose comprising a film web which is curved to form a tube. The edge regions of the film web, which run parallel to the...
4563379 Sealing web  
Sealing web of at least one layer on the basis of mixed polymerizates of ethylene and propylene with or without ter-component (EPDM/EPM). Mixed polymerizates with an ethylene content of at least...
RE32056 Method of forming a connection between two sealed conduits using radiant energy  
A connection may be formed between sealed conduits in which each conduit carries an opaque, thermoplastic wall portion preferably having a melting range above essentially 200° C., preferably with...
4557791 Belt press with upper and lower bend compensators  
A belt press is formed of a longitudinal row of upright and abutting press frames each comprising a plurality of upper and a plurality of lower traverses respectively having lower and upper...
4554043 Belt press with multiple press frames  
A belt press is formed of a longitudinal row of upright and abutting press frames each comprising upper and lower traverses respectively having lower and upper traverse faces and two upright tie...
4543140 Steam sack vulcanizing method  
Disclosed herein are method and apparatus for vulcanizing rubber. One example of an environment wherein the teachings of the present invention is quite useful is the environment of the creation of...
4541883 Method of splicing a thermoplastic mandrel and a mandrel made by said method  
The present invention provides a method for making a thermoplastic mandrel in which at least two sections of a thermoplastic rod, comprising a thermoplastic material which has been compounded with...
4539064 Apparatus for splicing strips of thermoplastic material  
In a method of splicing strips of thermoplastic material to form waterstop joints, the strips are first clamped in longitudinal alignment with their adjacent ends spaced apart. While the strips...
4536244 Methods and apparatus for locking the facing edges of carpet backings directly together at the seam during a face seaming operation with a hot melt adhesive tape  
A carpet seaming iron of the kind used for making face seams with hot melt adhesive tapes forms a raised center bead in the molten adhesive produced behind the iron. The center bead is of a...
4535015 Weft inserted warp knit construction  
A large water and air impervious textile panel suitable for use as a pond liner, tarpaulin, or the like, is constructed from a plurality of smaller panels. Each small panel comprises a weft...
4525233 Improvements relating to method and apparatus for joining sheet material  
A method and apparatus for adhesively bonding together in edge abutting relationship two sheets of woven, felted, or other textile material such as carpet using a joining tape which includes a...
4519857 Elastic band sealer apparatus and method for forming a continuous non-overlapping band  
An elastic band sealer for forming a continuous non-overlapping band from a source of material in which the band sealer includes apparatus to extend a length of material from the source, apparatus...
4514244 Plastic pipe elements and methods for making same  
A plastic pipe element comprises an inner one-piece liner of thermoplastic material. The liner is formed so as to include at least one cylindrical leg having a free outer end and inner end...
4514243 Tire for wheelchairs and the like  
A tire for a wheelchair wheel or the like in the form of a composite extrusion comprising a relatively soft, elastomeric casing extruded over a semirigid core. End faces of a length of extruded...
4505780 Joining weatherstrippings  
Two weatherstrippings are joined before the application of any backing to the woven strip of artificial yarn which carries the rows of pile which form the air barrier. A plastics material is...
4502906 Heat welding of thermoplastics  
The several embodiments illustrated in the FIGS. show welding apparatus for joining a plurality of plies of laminar thermoplastic materials held in and by gripping apparatus such as clamp jaws or...
4501951 Electric heating element for sterilely cutting and welding together thermoplastic tubes  
An electric heating element for sterilely cutting and welding together a pair of thermoplastic tubes transversely of the axis of each tube includes as an outer layer a folded sheet of a metal,...
4484975 Hand held apparatus for joining small diameter plastic pipe  
A hand held apparatus for joining coaxially two lengths of small diameter plastic pipe comprises two parts. One part forms a first handle, and is attached to a horizontal frame at right angles....
4465541 Grouping single dose containers  
An apparatus for grouping unitary dose containers which have polygonal collars receives such containers from a supply magazine and directs them by a first transfer device onto mandrels on plates...
4450038 Hot air blast welding apparatus for thermoplastic parts  
A hot air blast welding apparatus for welding works of thermoplastic materials having different softening temperatures. The apparatus includes a nozzle having nozzle openings for applying hot...
4443288 Method and apparatus for fusing together thermoplastic synthetic resin molded articles  
In a method and apparatus for fusing together thermoplastic synthetic resin molded articles wherein opposing ends of the molded articles are melted and then fused together under pressure, gaps are...
4441950 Universal file with inner gluing back for thermal gluing systems  
Universal file with inner gluing back for thermal gluing systems of the type comprising substantially the combination of a front sheet, a rear sheet, a back and a layer of binding glue applied on...
4422890 Process for the manufacture of dimensionally recoverable articles  
A process for the manufacture of a dimensionally recoverable article comprises forming a plurality of separate component parts thereof, joining the component parts together to form the article,...
4421591 Veneer butt-end splicer  
Wood veneer strips are butt joined end-to-end for assembly of an indefinite length strip or sheet suitable for reeling. The splicing apparatus clamps the veneer strip ends to be joined in...
4420352 Absorbable-susceptor joining of ceramic surfaces  
An assembly (28) of ceramic surfaces (21, 23), particularly refractory metal oxides and carbides, abutting a thin sheet (22) of metal susceptor material are placed in a chamber (10) of an...
4419067 Device for connecting plastics tubes by heatsealing  
Method for connecting thin-walled plastic tubes by heat welding wherein a normal plastic tube is heated and provided with a funnel-shaped widening and another tube is heated and provided with a...
4416713 Method and apparatus for joining abutting edges of sheet material  
A method and apparatus for adhesively bonding together in edge abutting relationship two sheets of woven, felted or other textile such as carpet using a joining tape which includes electrically...
4407691 Method and apparatus for performing hot air welding of thermoplastic resin parts  
Thermoplastic resin parts are opposingly placed from each other and a concentrated blast of hot air is applied to opposite areas of these parts to be welded while the parts are rotating. After...
4402781 Continuous solid wood laminated panels  
An apparatus and a method for making a continuous solid wood-laminated panel from elongated wooden blocks precoated with glue along two right angular edges. An elongated table is provided at its...
4401497 Method and apparatus for butt welding of plastic pipes of large diameter  
The welding apparatus serves for the purpose of butt-welding of plastic pipes of diameters larger than 500 mm. All the work is performed by means of the welding apparatus from inside the pipe....
4398982 Spliced web and method for forming a splice  
A spliced web and method for splicing web end portions together for minimizing splice-induced disturbance of a liquid composition continuously coated onto the face side of the spliced web during a...
4392906 Method of and apparatus for manufacturing fastener assemblies  
A plurality of fasteners are joined together as they are laminated in the direction of the thickness thereof, to form a fastener assembly. Each of the fasteners consists of a substantially...
4390383 Method of making plastic pipes having walls with lengthwise extending channels  
Plastic pipes comprising an inner and outer wall being interconnected by lengthwise extending connecting partitions, forming channels, the ends of the channels being each separately sealed by...
4390384 Method and apparatus for bonding thermoplastic materials  
A method and apparatus is disclosed for bonding two pieces of thermoplastic material to one another. The method includes the steps of heating the edges of the plastic materials to be joined to at...
4390578 Method of joining members  
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...
4388134 Underwater diver's dry suit and method of sealing  
A method of sealing an underwater diving suit constructed of foam core material having a cover material on both sides, including steps of removing a portion of the cover material on the inside of...
4376668 Apparatus for and method of making V-belts  
An apparatus for making V-belts comprising a base member, a cover for the base member, a channel-like guide means carried by the base member for receiving a length of belting from a supply, first...
4375490 Photographic film splice  
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...