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5304266 |
Continuous loop ribbon welding system
There is provided a method and apparatus for adjoining two ends of a length of impact printer ribbon to form a continuous loop of ribbon. A welding fixture, including a welding anvil, ironing anvil...
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5232529 |
Method for joining non-woven fabrics
A method for joining non-woven fabrics having the following steps; opposing the same sides of a first and a second non-woven fabrics and, whereby superimposing end portions thereof, joining with...
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5223070 |
Apparatus for manufacturing an endless ribbon
An apparatus for manufacturing an endless ribbon comprises a pair of clamping devices situated spaced apart from each other along a ribbon path for overlapping two ends of a ribbon one above the...
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5215609 |
Continuous process for producing ultrasonically welded air filters
A method for continuously producing air filters made from synthetic materials is described, wherein an essentially continuous length of filter material is passed through a series of ultrasonic...
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5190608 |
Laminated belt
A flexible belt having an outwardly facing surface, a welded seam having irregular protrusion on the outwardly facing surface and a thin flexible strip laminated and covering the welded seam and...
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5171387 |
Ultrasonic comb horn and methods for using same
A unitary extended width comb horn for generating ultrasonic vibrations over a width of greater than 12 inches for a frequency of 20 kHz wherein such vibrations vary by less than ±10% across the...
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5085719 |
Variable rate welding of thermoplastic belts
A process for welding including providing sheet material comprising a thermoplastic polymer, overlapping edges of the sheet material to form a lap joint, supporting the lap joint on an anvil, and...
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4980213 |
Welded sheet material having uniform joinder seams
An integral thermoplastic sheet being formed of a plurality of separate sheets welded together in a longitudinal seam along their edges, the seam having been formed by the melting together of the...
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4959109 |
Apparatus and process for preparing belts
Processes and apparatus for fabricating belts are disclosed comprising conveying a first mandrel to a wrapping station, supplying the leading edge of a web from a web supply roll to the first...
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4938817 |
Method of forming bonded seams of spunbonded polyolefin fabric and cleanroom garments including such seams
Bonded seams for joining nonwoven, spunbonded polyolefin fabric to itself are prepared by overlapping of edge regions of the fabric with linen sides of the fabric in contact with one another and...
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4935081 |
Method for welding of continuous loop ribbon
The invention relates to a method of adjoining two ribbon ends to form a continuous loop of ribbon. This is done by aligning lengths of the ribbon and holding the same in taut condition....
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4907513 |
High volume obturator assembly method
An obturating band of the despun variety is manufactured within the channel of a projectile assembly. A split ring polymer pre-band is clamped around the band seat of the projectile assembly and...
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4904319 |
Method of ultrasonic splicing tire tread strip edges
A method for splicing beveled edges of a relatively thick tire tread strip free of internal reinforcing cords by ultrasonic energy. A contact face of a sonic welding tool or horn is pressed against...
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4883547 |
Method of forming a high efficiency respirator
The invention provides a filtration face mask which has an expanded filtration surface area and high filter efficiency. The mask includes at least two sidewall portions generally extending away...
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4878985 |
Apparatus for preparing belts
A process and apparatus for fabricating belts are disclosed in which the leading edge of a web is conveyed from a supply roll into a belt loop forming station, the web is cut a predetermined...
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RE33063 |
Apparatus and method for ultrasonically joining sheets of thermoplastic materials
Apparatus for welding sheets (3a, 3b) of themoplastic material together along proximate edges including a supporting frame (25), a pair of joining rollers (11,13) mounted on the frame and forming a...
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4842671 |
Apparatus for connecting elongate material such as electrical conductors by means of ultrasonics
In an apparatus intended especially for connecting electrical conductors by ultrasonic welding, in which a two-part anvil comprising three working surfaces is associated with a sonotrode for...
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4750970 |
Plastic sheet sealing/welding machine
A machine for gas-free sealing/welding of overlapping edges of thermoplastic material is provided and is of the type which includes a framework carrying an ultrasonic transducer horn assembly...
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4743412 |
Space portion processing method and apparatus for a slide fastener chain
A space portion processing method and apparatus for preprocessing a slide fastener chain before attaching parts forming a separable end stop such as a retainer pin and a separable pin at the space...
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4670073 |
Bonding man-made fabrics to form protective garments without use of stitching
A method for bonding seams in protective garments without use of any stitching, by applying high-frequency ultrasonic waves of pressure to overlapping edges of fabric of non-woven spunbonded olefin...
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4668316 |
Welding thin thermoplastic film by ultrasonic energy
Thin plastic film is welded by ultrasonic energy by placing two layers of film upon one another on a supporting surface having a cavity. A source of ultrasonic energy, such as a resonator, is...
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4631685 |
Method and apparatus for ultrasonic plastic forming and joining
Accurate dimensional control in ultrasonic welding or upsetting of plastic parts is accomplished by the method and apparatus for monitoring the ultrasonic head displacement and sensing when a...
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4629530 |
Apparatus for welding of continuous loop ribbon
There is provided a method and apparatus for adjoining the two ends of a length of impact printer ribbon to form a continuous loop of ribbon within a ribbon cartridge. A welding fixture includes a...
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4609422 |
Printer ribbon cartridge loading system
There is disclosed herein an improved apparatus and method for stuffing pre-inked printer ribbon from a ribbon roll into a ribbon cartridge. The apparatus includes a drive motor for pulling the...
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4605578 |
Method and apparatus for connecting together material plies which are unilaterally thermoplastically coated
A method of interconnecting first and second material plies, each having one side coated with a thermoplastic material uses pressing means in the form of continuously rotatable pressing rollers and...
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4589584 |
Electrical connection for polymeric conductive material
Flexible flat ribbon cables with a polyester binder silver particle conductive ink deposited on a heat bondable substrate are bonded to each other or to rigid circuit boards by applying ultrasonic...
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4548771 |
Ultrasonic vulcanization
Methods and apparatus for vulcanizing rubber and like material (10). Ultrasonic energy at about 10 to 100 kilohertz is applied to the material (10) at an energy intensity sufficient to generate...
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4501782 |
Method for bonding webs employing ultrasonic energy
A method for bonding thermoplastic webs includes the steps of interdigitating the ends of the warps at opposing web edges, with the length of the interdigitation insuring that the end of an...
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4490199 |
Method and apparatus for splicing polymeric webs
An apparatus and method of splicing polymeric webs using an ultrasonic welder and a web support means. There is a means to secure the trailing end of at least one first web and the leading end of...
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4474637 |
Labeling machine and label
The invention relates to a machine for making labels of textile material sealable by ultrasonic means and having a delivery section that operates in cycles, and a folding and ironing device for...
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4461662 |
Ultrasonic welding apparatus
An ultrasonic welding apparatus improved in its presser opposed to the working surface of the oscillated horn. The presser roller is provided with a recess on a surface facing the working surface...
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4373979 |
Sealed bags of plastic materials
A method of sealing a sheet of woven ribbons of heat sealable plastics material to an article which may be another sheet of said plastics material comprises applying a regular pattern of ultrasonic...
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4289552 |
Method for the continuous welding of thermoplastic sheets
A method of welding together a pair of thermoplastic sheets each including pposite surfaces bridged by a terminal edge defining an edge portion by placing the edge portion of a first overlapping of...
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4263357 |
Photo album page
A photographic album page comprising a fibrous centrally disposed lamina and a pair of overlying clear synthetic resinous laminae. Pockets are formed by ultrasonic sealing of the clear laminae...
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4247345 |
Method for joining synthetic materials
Sections of synthetic materials, such as thermoplastic materials, suitable for use in electrolytic cells for the production of chlorine and sodium hydroxide, are joined together in a reinforced...
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4169751 |
High frequency bonding with concentrators
An article and its method of manufacture is disclosed wherein at least three sheets of thermoplastic web material are bonded to form a laminated unit. Energy director element sets are disposed...
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4119448 |
Apparatus and method for connecting the ends of a cut length of ribbon
This invention relates to an improvement in an automatic apparatus and method for coupling a workpiece to a specified position along a continuous length of ribbon and then cutting a length of...
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4073540 |
Sealed hub cap and method
A hub cap assembly for vehicle axles which includes a rigid hub cap body with a sidewall portion and a radially inwardly directed flange having a window therein so that the lubricant level in the...
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4026000 |
Apparatus for producing enveloped battery plates
Apparatus for enveloping battery plates within porous separators and for feeding a separator sheet to form a fold at the approximate midpoint of the separator, simultaneously positioning a battery...
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4018955 |
Process for producing a ring-shaped one-color or multi-color ribbon and a ribbon produced in accordance with this process
A continuous or ring-shaped printing ribbon is constructed by overlapping the ends of a length of ribbon made of thermoplastic synthetic material and welding the overlapped ends together along a...
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4002517 |
Tacked film roll and method of making same
A wound roll of filmstrip of the type having a photographic emulsion layer on one strip face and a raised stripe disposed along one edge of the opposite strip face is so formed as to produce...
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4002516 |
Hermetic closure
A hermetic closure cap of resilient thermoplastic material constructed so as to be removably securable in an aperture made in a rigid sheet. This cap is retained by a normally non-deformable but...
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3982978 |
Method and apparatus for making pile fabric
This invention relates to a method and apparatus for making pile fabrics wherein a sheet of longitudinally striated thermoplastic film formed into loops is fusion bonded to a thermoplastic backing...
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3981387 |
Method for inking preassembled ribbon cartridges
A method which includes loading a length of uninked ribbon into a ribbon cartridge having a support area where a portion of the ribbon is supported and exposed; positioning an inking member and the...
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3981237 |
Plastic rotary printing screens construction method therefor
Plastic screens having the bending modulus, thinness, toughness, strength and chemical resistance which are suitable for use in rotary screen printing processes, are described. Methods for...
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3973064 |
Engaged beveled sheet faces adapted to be sonically welded
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...
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3962010 |
Method of manufacturing a body for a valise, suitcase, attache case or similar article
A method of manufacturing a body or frame for a valise, suitcase, attache case, or other similar article made of shaped plastic material, which is adapted for travel and personal use. A base or...
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3962008 |
Message tape for instrument display systems
A message tape for instrument display systems includes laminations of metallic and plastic materials. Messages are etched through a metallic lamination and dyes are applied through the etchings to...
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3956046 |
Method for ultrasonically welding composite sheet material
There are described a method ultrasonically connecting, in overlapped relationship, a number of so-called processed paper sheets having coatings of a thermoplastic, synthetic resin material or a...
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3956045 |
Method and apparatus for bonding layers of resinous material
A method and apparatus for bonding at least two films of resinous material such as polyester films to one another wherein at least a portion of one surface of one polyester film is placed...
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