Patent ID: 8821777
Filing Date: 2014-09-02
Classification: A47C,B29C,B60N

Abstract:
1. A method for manufacturing a mold for production of a seat element, the mold comprising a first mold portion and a second mold portion engageable to define a mold cavity, the first mold portion having a first molding surface comprising a seating surface molding element, the seat surface molding element comprising a plurality of peak portions and a plurality of valley portions, the method comprising the steps of: (a) forming an insert having a negative of the seating surface molding element; (b) placing the insert in a first temporary mold portion such that a combination of the insert and the first temporary mold portion corresponds substantially to the first molding surface of the first mold portion; (c) forming a second temporary mold portion having a negative of the first temporary mold portion; (d) disposing a casting composition on the second temporary mold portion; (e) forming a third temporary mold portion on an exposed portion of the casting composition, the second temporary mold portion and the third temporary mold portion combining to define a temporary mold having a casting mold cavity occupied by the casting composition; (f) removing the casting composition from the temporary mold; (g) dispensing a mold material in the casting mold cavity; and (h) removing the second temporary mold portion and the third temporary mold portion to produce the first mold portion.