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7235115 |
Method of forming self-supporting pleated filter media
The method of forming pleated filter media includes providing a generally planar web of filter material, folding the web to form a pleated web having a plurality of fold lines, arranging the...
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7097803 |
Process of making a corrugated net material
The present invention is to provide a process of making a corrugated net material including the following steps. First prepare a net material with an adequate length, and then heat and soften the...
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6932850 |
Pleated filter and a method for making the same
A filter may comprise a plurality of pleats, at least one pleat including a pair of pleat legs and pleat tip region. In some embodiments, a thickness of pleat tip region at a point spaced about one...
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6818167 |
Method of manufacturing rubber crawler
In a method of manufacturing a rubber crawler through a first vulcanization step and a second vulcanization step using an upper mold, a middle mold and a lower mold, at least the middle mold is...
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6767493 |
Rubber crawler producing method
It is to provide a method of manufacturing a rubber crawler which enhances a degree of freedom in the handling in a vulcanization-shaping of a crawler part and largely improves vulcanization...
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6726870 |
Method for making a bulked web
A method for making a bulky web. A web is fed in a first direction. The web is subjected to incremental stretching in a direction perpendicular to the first direction to provide a bulky web. The...
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6623587 |
Method for making fibrous loop member
The present invention relates to a method of making a fibrous loop member which can be used in disposable absorbent articles such as diapers, adult incontinence devices, sanitary napkins, and the...
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6511623 |
Manufacturing method of filter element
A manufacturing method for a filter element having a filter portion and a flange portion formed along an outer periphery of the filter portion to protrude outwardly. First, a corrugated...
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6506329 |
Method for making a stable nonwoven web having enhanced extensibility in multiple direction
The present invention provides a stable material having enhanced extensibility and a method for making the same. A neckable material is fed in a first direction. The neckable material is subjected...
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6497754 |
Self ionizing pleated air filter system
A pleated filter is provided with electrically conductive fibrous material that releases ions to improve trapping efficiency. The edges of folded filter media are rendered emitting as by attaching...
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6461559 |
Method for shaping strip-like films
A method for the shaping of strip-like films ( 2 ) involves the following steps: a) A film strip ( 2 ) is continuously forwarded from a film supply to shaping units. b) The film strip ( 2 ) is...
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6187381 |
Process for preparing silica gel and process for producing dehumidifying element
A process for preparing silica gel is disclosed. The silica gel is produced by immersing a base in silica sol, drying the impregnated base in a mixed solution of an alkali silicate and an alkali...
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5733403 |
Product packaging material and its manufacturing method
This invention relates to a product packaging material and method, and in particular to a product packaging material (27) formed from a length of rolled corrugated paper (20) and a method of...
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5577989 |
Method for forming corrugated paper container and container made therefrom
A method for forming a corrugated paperboard container and a container made therefrom having a first layer of flat paperboard to which is attached a second layer of contoured paperboard, said...
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5468033 |
Impact absorbing bumper mount and method of making
Impact-absorbing bumper mount with two telescoping tubes, in particular for motor vehicles, to decelerate a vehicle via damping forces when the vehicle strikes an obstacle, whereby a work piston is...
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5296065 |
Method of forming workpieces by means of multi-sectional pressing members
A forming assembly comprises two presser members (22,24) each having a corrugated surface for receiving a workpiece made up of generally diamond-shaped pockets (10). Each presser member is made up...
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5064598 |
Process and apparatus for manufacturing a pleated filter insert
A process and apparatus for the manufacture of a pleated filter insert made of a thermoplastic material. The pleat walls are maintained at a distance with the filter pleats open in the direction of...
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4980003 |
Method for producing zigzagged plastic strand and forming into multiple-hook fastener media
U.S. Pat. No. 4,615,084 disclosed and claimed a method for making multiple-hook fasteners and the resulting multiple-hooks. A strand of stiffly flexible bendable settable polymeric plastic material...
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4921643 |
Web processing with two mated rolls
A machine and process for a web of material employing two side-by-side sets of spaced apart driven disks adapted to rotate respectively in opposite directions about two spaced apart parallel axes,...
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4604792 |
Method for making electro-acoustic transducer apparatus
The method of making the diaphragm includes pressing on the front face of a film at spaced apart areas to deform it progressively into a series of closely-spaced generally U-shaped projections. A...
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4594162 |
Pleated filter and method and apparatus for fabricating same
A filter for separating constituent components of fluids includes a plural-layer sheet-like member which is multiply pleated to provide layers of the same or different porosity or to provide...
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4400338 |
Method for making sealant
The method of making a deformable sealant strip having a continuous strip of rigid corrugated material embedded longitudinally within mastic material wherein a continuous linear-rigid spacer is...
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4289725 |
Material web for the manufacture of filter rods for tobacco products and apparatus and process for producing such web
The invention relates to a longitudinally creped paper web for use in the manufacture of filter rods. In order to improve the filtering capacity and resistance to flow therethrough without...
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4279679 |
Method of manufacturing insulating corrugated structural members
An insulating corrugated member is provided by two sheets having identical corrugations, at least one of the sheets being of a thermoplastic material and having its edges deformed, the deformed...
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4248822 |
Process and apparatus for producing a moisture-permeable film
In the manufacture of a moisture-permeable covering film for absorbent material a thermoplastic film is provided with capillary-like protrusions by embossing, after which openings are produced in...
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4239472 |
Clamping ring for vacuum-forming apparatus
Apparatus for use in the vacuum-forming of sheet material in a mould comprises a clamping ring formed by a plurality of rollers mounted close to each other on an annular support which will hold the...
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4223059 |
Process and product thereof for stretching a non-woven web of an orientable polymeric fiber
A non-woven web of synthetic fibers is selectively stretched in incremental portions in a first and second station wherein the first and second station are provided with sets of rolls having...
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4144008 |
Apparatus for stretching a tubularly-formed sheet of thermoplastic material
There is described in a preferred embodiment of the present invention, a process and apparatus for bi-axially stretching a tubularly-formed sheet of thermoplastic material in a first station and a...
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4101625 |
Method for making corrugated molecularly oriented plastic strapping
A method in which a band formed of essentially unoriented thermoplastic polymeric material is provided with a transverse cross-section which is of corrugated configuration and is generally uniform...
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4012932 |
Machine for manufacturing herringbone-pleated structures
A machine for manufacturing herringbone-pleated structures of a type particularly suitable for use in cylindrical or flat filter elements. The machine includes consecutive feeding forming and...
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3966912 |
Method of preparing tobacco smoke filter
A tobacco smoke filter element for use in cigarettes, cigarette holders, cigar holders or pipes is formed from a bonded non-woven fabric composed wholly or partly of wool fibers. It is preferred...
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3966379 |
Apparatus for making corrugated flexible tubing
Apparatus for making corrugated flexible tubing such as the suction hose used in a vacuum cleaner comprises an extruder which extrudes tubular plastic material with annular corrugations, followed...
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3962205 |
Polymer materials
An oriented high density polyethylene polymer material having a weight average molecular weight of less than 200,000, a number average molecular weight of less than 20,000, a ratio of weight...
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3501565 |
METHOD OF TRANSVERSE STRETCHING ORIENTABLE SHEET MATERIAL
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3491185 |
METHOD AND APPARATUS FOR ORIENTING FILMS MADE FROM THERMOPLASTIC POLYMERS
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3478142 |
METHOD OF PLEATING AND STRETCHING PLASTIC FILM
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3466358 |
METHOD OF MAKING FILTERING MATERIAL FOR CIGARETTES
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3400193 |
Process for preparing filamentary microtapes of labyrinthian cross section
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3397264 |
Method for corrugating and compressing flexible tubing
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3383449 |
Method for producing an endless filter string
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3379805 |
Method of making corrugated hose
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3350484 |
Method and apparatus for making battery separators and the like
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3233029 |
Method of cold-stretching orientable sheet material
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3226280 |
Apparatus for producing an endless filter string
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3213174 |
Method of making a slide fastener stringer
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3197537 |
Apparatus and method for manufacturing slide fasteners
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3188372 |
Machine and method for compacting materials
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3173828 |
Method for corrugating sheets of asbestos cement
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3146197 |
Pleated filter construction
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3058160 |
Methods for making preformed insulation for stationary induction apparatus
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