Sever and seal bar having interchangeable inserts and blades
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 11, 1994
Issued Date -
N/A
app pub date -
Nov 2, 1992
filing date -
Nov 27, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A heat seal bar used in a plastic film packaging machine for cutting and sealing plastic films about wrapped products is provided with an insert having sealing surfaces and a knife cutting edge which is removably mounted to the seal bar. A first rectangular portion of the insert is adapted to be received within an elongate slot formed in a bottom surface of the seal bar for mounting the insert to the bar with screws. A second portion of semicircular cross section extends along the bottom of the first portion and thereby projects downwardly from the seal bar. A knife blade detachably mounted in the insert has a cutting edge extending below the seal bar. The cutting edge is defined by a pair of converging knife surfaces formed on the knife blade. Convex surfaces of the second portion formed respectively on opposite sides of the knife define the sealing surfaces.
First Claim
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International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 23 Citation Count
- B32B Class
- 72.32 % this patent is cited more than
- 31 Age