Plastic article or earthenware shaping or treating: apparatus – Reshaping – resizing or vulcanizing means for tire – tire... – Toroidal or annular female shaping means and coacting means...
Patent
1986-11-24
1988-09-20
Hoag, Willard E.
Plastic article or earthenware shaping or treating: apparatus
Reshaping, resizing or vulcanizing means for tire, tire...
Toroidal or annular female shaping means and coacting means...
249134, 249160, B29C 3500
Patent
active
047721944
ABSTRACT:
For eliminating burrs which form on moulded, or injected products, a moulding device and, in particular, a tire-vulcanizing mould, is provided with a plastically and elastically deformable portion on the coupling surface between the corresponding elements. The coupling, between the facing surfaces, is not simultaneous, but involves a portion of surface having an amplitude that increases in its size, during the shutting movement of the mould.
REFERENCES:
patent: 784874 (1905-03-01), Miller
patent: 1312627 (1919-08-01), Grube
patent: 1417509 (1922-05-01), Gammeter
patent: 1513102 (1924-10-01), Gammeter
patent: 4279854 (1981-07-01), Blaszkowski
patent: 4501715 (1985-02-01), Barfield et al.
patent: 4655699 (1987-04-01), Collier
Gallinotti Giancarlo
Pizzorno Augusto
Hoag Willard E.
Pirelli Coordinamento Pneumatici S.p.A.
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