Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method for forming articles by compression moulding










Image Number 17 for United States Patent #7425293.

Method for forming articles of synthetic material by compression moulding, comprising the following operative stages: inserting a first measured quantity of synthetic material in the plastic state into the cavity of a mould comprising a punch with which it defines a first forming chamber for said measured quantity; pressing said measured quantity to obtain a first portion of the article; opening the mould and inserting a second measured quantity into said cavity; closing the mould by repositioning the punch relative to said cavity to define a second forming chamber; pressing said second measured quantity and again opening the mould, then extracting said article from the punch.The method is implemented by a plant comprising a plurality of forming units (3), and at least one device (5', 5'') for feeding in succession at least two measured quantities (100, 201) of synthetic material in the plastic state to each of said forming units (3, 43, 81), each of said forming units comprising an upper half-mould provided with at least one punch (110, 46) and a lower half-mould comprising at least one die (29, 70, 90, 91) provided with a cavity matching said at least one punch (110, 46), means being provided to align said at least one die with said at least one punch in succession and to drive said die along the alignment axis, and means which collaborate with said at least one punch and said at least one die in such a manner as to define at least two different forming chambers.








 
 
  Recently Added Patents
Amplitude-shift-keying (ASK) envelope detector and demodulation circuits
Transmitter having a programmable amplifier operating class
Direct converting apparatus, method for controlling the same, and control signal generation device
System and method for access of user accounts on remote servers
Systems and methods for generating a hybrid text string from two or more text strings generated by multiple automated speech recognition systems
Phosphor adhesive sheet, light emitting diode element including phosphor layer, light emitting diode device, and producing methods thereof
Power generating apparatus of renewable energy type and method of attaching and detaching blade
  Randomly Featured Patents
Color cathode-ray tube
Spark plug with specific electrode structure
Storage device wear leveling
Coupling device for tube
Domestic combined heat and power unit
Process for preparing rigid foamed materials containing urethane groups
Side dam with insert
Electronic camera
Board game
Memory circuit with decoupled read and write bit lines and improved write stability