Static molds – Forming product having joint or coupling – Lapped interfitted facing – alternating reversing identical...
Patent
1987-10-23
1989-05-23
Woo, Jay H.
Static molds
Forming product having joint or coupling
Lapped interfitted facing, alternating reversing identical...
52828, 249123, 249124, 249135, 249176, 425253, 425DIG117, B28B 722
Patent
active
048323098
ABSTRACT:
A moulding pallet for moulding building blocks with interlocking surfaces comprises a metal sheet bent to form parallel ridges and valleys, with transverse sheet metal channels inserted through openings in the ridge sides forming transverse secondary ridges.
REFERENCES:
patent: 23877 (1859-05-01), Worthen
patent: 1481473 (1924-01-01), Larson
patent: 2022255 (1935-11-01), Scott
patent: 3481643 (1969-12-01), Campbell
patent: 3496691 (1970-02-01), Seaburg et al.
patent: 4693047 (1987-09-01), Menchetti
Housel James C.
Woo Jay H.
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