US 12,168,334 B2
Systems and methods for making envelopes and/or other protective products with expanded paper cushioning
David Paul Goodrich, Sedona, AZ (US)
Assigned to HexcelPack, LLC, Sedona, AZ (US)
Filed by David Paul Goodrich, Sedona, AZ (US)
Filed on Feb. 27, 2021, as Appl. No. 17/187,768.
Application 17/187,768 is a continuation in part of application No. 16/870,195, filed on May 8, 2020, granted, now 11,440,305.
Application 16/870,195 is a continuation in part of application No. 16/749,875, filed on Jan. 22, 2020, granted, now 11,691,374, issued on Jul. 4, 2023.
Application 16/749,875 is a continuation in part of application No. 16/531,017, filed on Aug. 3, 2019, granted, now 10,981,712.
Application 16/870,195 is a continuation in part of application No. 16/018,702, filed on Jun. 26, 2018, granted, now 10,669,086, issued on Jun. 2, 2020.
Claims priority of provisional application 62/982,662, filed on Feb. 27, 2020.
Claims priority of provisional application 62/806,849, filed on Feb. 17, 2019.
Claims priority of provisional application 62/798,065, filed on Jan. 29, 2019.
Claims priority of provisional application 62/714,739, filed on Aug. 5, 2018.
Claims priority of provisional application 62/524,905, filed on Jun. 26, 2017.
Claims priority of provisional application 62/845,293, filed on May 8, 2019.
Claims priority of provisional application 62/795,310, filed on Jan. 22, 2019.
Prior Publication US 2021/0252821 A1, Aug. 19, 2021
Int. Cl. B31B 70/10 (2017.01); B31B 70/16 (2017.01); B31B 70/62 (2017.01); B31B 70/88 (2017.01); B31B 155/00 (2017.01); B31B 160/10 (2017.01); B31B 170/20 (2017.01)
CPC B31B 70/10 (2017.08) [B31B 70/16 (2017.08); B31B 70/62 (2017.08); B31B 70/88 (2017.08); B31B 2155/002 (2017.08); B31B 2160/106 (2017.08); B31B 2170/20 (2017.08)] 57 Claims
OG exemplary drawing
 
1. A method for making a padded envelope, comprising:
conveying a first sheet of paper in a conveying direction;
conveying an expanded sheet of paper in an expanded state in said conveying direction with one side of said expanded sheet of paper facing said first sheet of paper;
conveying a second sheet of paper in said conveying direction with an opposite side of said expanded sheet of paper in said expanded state facing said second sheet of paper;
while continuing conveying movement during said conveying of said first sheet of paper, said expanded sheet of paper in said expanded state and said second sheet of paper in said conveying direction, pressing together a region of said first sheet of paper, said expanded sheet of paper and said second sheet of paper which region extends along a direction transverse to the conveying direction and causing said expanded sheet of paper to collapse within said region and said first sheet of paper, said expanded sheet of paper and said second sheet of paper to adhere together within said region; and
while continuing conveying movement during conveying of said first sheet of paper, said expanded sheet of paper and said second sheet of paper in said conveying direction, cutting along said region that is pressed together during said pressing together such as to sever said first sheet of paper, said expanded sheet of paper and said second sheet of paper.