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US 10,500,808 B2Granted
Inflation and sealing device with release features
AssigneePregis Innovative Packaging LLC
InventorThomas D. Wetsch
Life of this patent
Estimating the term…
Abstract
The present disclosure is related to an inflation and sealing device that can include low or non-stick surfaces and bump-off elements to prevent sticking to a holding region proximal to the exit from the inflation and sealing device.
Claims25
A web inflation device, comprising:
- an inflation mechanism operable to inflate the web with a fluid by directing the fluid between superimposed plies of the web;
- a sealing mechanism operable to seal the plies together to seal the fluid therein;
- and
- a first post-seal control element comprising a first curved surface that forms part of a holding region operable to retain the sealed plies together downstream of the sealing mechanism, wherein the holding region is arranged to contact the web downstream of the sealing mechanism such that the web follows the first curved surface, and a material release element transversely adjacent to the first curved surface and configured to cause a portion of the inflated web transverse to the sealed plies to bend in a direction away from the first curved surface for releasing the sealed plies from the first post-seal control element as to the sealed plies exit the holding region.
1 more element
A web inflation device, comprising:
- an inflation mechanism configured to inflate a web with a fluid by directing the fluid between superimposed plies of the web;
- a sealing mechanism comprising a heated drum configured to seal the plies together to form a longitudinal seal thereby sealing the fluid therein;
- and
- a first post-seal control element that includes a first surface, which forms part of a holding region configured to retain the sealed plies together downstream of the heated drum, and a protrusion configured to release the sealed plies from the first post-seal control element as the sealed plies exit the holding region by causing a portion of the inflated web transverse to the longitudinal seal to bend away from the first surface.
1 more element
Dependencies are inferred from the claim text.