Title: Apparatus for capping containers

Abstract: The invention provides a machine for capping containers with closures made of heat shrinkable film and includes a film feeding mechanism, a film cutting mechanism, and a film shrinking head which is adapted to accommodate containers of different sizes. The film shrinking head comprises two elongate and opposed flexible heated members which are bowed away from one another so as to provide a space for introduction of a container and a sheet of heat shrinkable film that overlies the container, and means for drawing the two heated members and thereby the margins of the sheet of film tight against the rim of the container so as to cause the film to shrink and form a tight closure on the container.

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Inventors: Mermelstein, Seymour (Newton, MA, US)

Application Number: 477700
Filing Date: 1974-06-10
Publication_date: 1976-02-24
Assignee: Tyco Laboratories, Inc. (Waltham, MA)
Primary Class(es): 53/329.3 53/298
Other Classes:
US Patent Ref:

558760	Apr, 1896	Becker	53/329.
2144592	Jan, 1939	Gehman	53/329.
2572704	Oct, 1951	Edgerton	53/357.
3262245	Jul, 1966	Sno, Jr.	53/184.
3716963	Feb, 1973	Amberg	53/329.
3783582	Jan, 1974	Willvonseder	53/329.

Other Refs:
Primary Examiner: McGehee, Travis S.
Assistant Examiner: Culver, Horace M.
Attorney: Schiller & Pandiscio