Title: Apparatus for closing and sealing containers with a lid

Abstract: An apparatus for closing and sealing filled containers with a lid includes instrumentalities for positioning an individual lid beneath a sealing die which has an underside. The lid is temporarily held and finally joined to a container under the influence of heat and pressure. Suction is used to hold the lid against the underside of the die while it is being joined to the container. A plurality of protuberances are disposed at the underside of the sealing die. Each of the protuberances has an oblique surface. Each oblique surface has a point lying nearest a sealing surface defining an area of the underside, the area thus defined being substantially equal to that of the lid. Each lid can be consequently positioned correctly on a container and becomes fused therewith.

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Inventors: Beckers, Hans (Rheydt, DT)

Application Number: 465497
Filing Date: 1974-04-30
Publication_date: 1976-01-06
Assignee: Robert Bosch G.m.b.H. (Stuttgart, DT)
Primary Class(es): 53/306 53/367
Other Classes:
US Patent Ref:

891511	Jun, 1908	Weissenthanner	53/334.
1860954	May, 1932	Risser	53/342.
3060652	Oct, 1962	Eckman	53/39.
3511025	May, 1970	Newport	53/307.
3752387	Aug, 1973	Arfert	53/329.

Other Refs:
Primary Examiner: McGehee, Travis S.
Assistant Examiner: Culver, Horace M.
Attorney: Greigg; Edwin E.