U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 425/339 - Reshaping or vulcanizing means including conforming preform support


Subclass of Class 425 - Plastic article or earthenware shaping or treating: apparatus
Definition: Apparatus in which the shaping areas are used to reshape
No. of patents: 21
Last issue date: 02/05/2008


NumberTitleIssue Date
7326456Low density oriented strand board
A low density oriented strand board has an average density of less than about 1.5 times the density of wood species used in the board and a homogenous vertical density profile. Low density OSB may be formed by preheating the wood finish prior to pressing, controllin...
02/05/2008
7249678Sorting apparatus
A sorting apparatus has at least two sorter cells arranged substantially one above the other. Sorter cells are fitted to a driving unit for moving the sorter cells from a horizontal loading plane to a horizontal discharge plane, both of which are assigned to the sor...
07/31/2007
7132151Laminates of films and methods and apparatus for the manufacture
A laminate of thermoplastic polymeric films comprises a fluted ply A and non-fluted ply B, adhered to one another in bonded zones along some of the flute crests the fluted ply A. The wavelength of the flutes is preferably no more than 3 mm. Ply A has a generally uni...
11/07/2006
6953545Method for producing contoured vehicle floor mats having integrally formed nibs
A method of producing contoured vehicle floor mats having integrally formed nibs. The sheet is formed by a nib forming roll in an extrusion roll stack having a plurality of indentions. The nibbed sheet is placed onto the thermoform mold with the nibs directed away f...
10/11/2005
6655942Pressure casting apparatus utilizing with two-part moulds
A apparatus for pressure casting sanitary appliances including an outer framework, at least one block slidable within the outer framework arid having a male mould part and a female mould part, a fixed endpiece for said framework being provided with the ma...
12/02/2003
5249946Plate forming die set
An apparatus for press forming products having a desired shape from a web is provided. The apparatus includes a cyclically operating blanking section for cutting the web to produce a single blank for each blanking cycle and a cyclically operating forming ...
10/05/1993
5234332Molding process for multiple molds
Molding press apparatus (20) for simultaneously operating a plurality of molds (M) having multiple mold parts (M1, M2) including, a framework (25), first and second platen assemblies (U,L) supported by the framework for carrying the mold parts of the mold...
08/10/1993
4990299Multi-parting molding system with clamping means
A desynchronously opened, stacked, multi-parting molding system includes left, center and right molding blocks for defining a left molding cavity between the left and center molding blocks and a right molding cavity between the center and right molding bl...
02/05/1991
4957585High pressure lamination chamber
A manufacturing device has an outer chamber in which a tool is mounted. The tool is shaped to receive a thermoplastic or staged prepreg. The tool has heaters embedded within it. The chamber region between the tool and the inside wall of the chamber is fil...
09/18/1990
4943339Apparatus for manufacturing corrugated plywood composites
A method and apparatus for forming corrugated plywood composites is disclosed. The apparatus includes a fixed mold component having a corrugated surface and a series of movable mold components having complemental corrugated surfaces movable toward and awa...
07/24/1990
4636348System for thermoforming articles such as picnic plates in a pair of simultaneously fed, continuous thermoplastic webs which subsequently move into nested relation, and then dually trimming the nested articles from the webs
A system for producing generally concavo-convex synthetic plastic containers and like articles, such as picnic plates wherein a mold station has a stationary intermediate mold with projecting male mold parts on one side and directly opposite recessed fema...
01/13/1987
4369160Press and process for vulcanizing annular elements
A press for vulcanizing annular elements, in particular belts for motion transmission is provided. The press can be used to vulcanize belts having different dimensions and shapes. A device for varying the distance between the pulleys on which the belts ar...
01/18/1983
4365547Method and apparatus for controlling a press
Control of a laminating press is attained by monitoring the temperature of the heating medium circulating through the press components....
12/28/1982
4363616Machine and part therefor
The invention includes a sheet moulding machine and a roller for use with the machine. The roller is wave-shaped along its longitudinal axis and/or is cut with one or more longitudinal grooves. This roller is located in the sheet moulding machine together...
12/14/1982
4212616Apparatus for forming boards from plant fibers
A mobile forming station is provided which longitudinally orients plant fibers and compresses them into slugs. A plurality of bonding stations each include a plurality of chambers selectively positionable in alignment with an ejector of the forming statio...
07/15/1980
4153405Three-deck vulcanizing press
Relatively simple modifications of an existing three-deck vulcanizing press make it possible to greatly improve press productivity with a small investment in new equipment. The press is modified by providing a manually or automatically controlled wedge lo...
05/08/1979
4146600Process of operating a vulcanizing press
A process is disclosed for greatly improving the productivity of three-deck injection and compression and/or transfer molding presses used for making vulcanized rubber articles in which pressures are applied to both the upper and lower sets of vulcanizing...
03/27/1979
4094619Apparatus for stretching and stripping belting in a multiplaten press
This disclosure includes entry and delivery clamps arranged on opposite sides of a multiplaten press for clamping belting in order to apply a tension to the belting prior to pressing. The tension is applied by moving the entry clamp in a direction away fr...
06/13/1978
3993423Multilevel vulcanizing press
A multilevel vulcanizing press is provided which includes a press housing having at least two press levels. Each press level is capable of receiving a molding tool which can be opened and closed within the press housing. Each molding tool is comprised of ...
11/23/1976
3964851Apparatus for curing elongate workpieces
A web of unvulcanized rubber or other curable material moves intermittently in generally horizontal passes through several superposed stages of a multiplaten press by way of a pair of stretching stations flanking the press, each stretching station includi...
06/22/1976
3960069Method and apparatus for controlling a press
A method of controlling a laminating press in accordance with a predetermined time-temperature command profile and apparatus for use therein, are disclosed....
06/01/1976
 
Sign InRegister
Username  
Password   
forgot password?