Package making – Closing packages and filled receptacles – By means adapted to engage outturned seam of package cover
Patent
1981-12-23
1984-06-26
Culver, Horace M.
Package making
Closing packages and filled receptacles
By means adapted to engage outturned seam of package cover
53379, B65B 5116, B65B 5130
Patent
active
044558082
ABSTRACT:
A sealing shoe assembly for providing superposed sheets with a sealing seam formed by a criss-cross pattern of straight lines by pressing together areas of the superposed sheets comprises a first pair of cooperating sealing shoes each having a plurality of parallel-extending stamping edges oriented in a first direction and a second pair of cooperating sealing shoes each having a plurality of parallel-extending stamping edges oriented in a second direction. The stamping edges of the cooperating sealing shoes are arranged to periodically assume a meshing relationship for pressing together predetermined areas of the superposed sheets passing between the cooperating shoes. The first and second pairs of sealing shoes are arranged for stamping the predetermined areas in sequence for providing the criss-cross pattern.
REFERENCES:
patent: 2276083 (1942-03-01), Moeller
patent: 2362459 (1944-11-01), Barnett
patent: 3243334 (1966-03-01), Lake
patent: 4106265 (1978-08-01), Aterianus
patent: 4254601 (1981-03-01), Prager et al.
Culver Horace M.
SIG - Schweizerische Industrie-Gesellschaft
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