Laurence B Sperry

US Patent:

6561236, May 13, 2003

Filed:

Mar 8, 2000

Appl. No.:

09/521259

Inventors:

Laurence B. Sperry - Boston MA
Eric A. Kane - Lynn MA
Jesse S. Drake - Maynard MA

Assignee:

Sealed Air Corporation (US) - Danbury CT

International Classification:

B65B 104

US Classification:

141314, 141114

Abstract:

An inflatable packing article including a flexible, air tight bag; and a valve assembly defining a passage through which air is introduced into the bag during inflation, the valve assembly having an inlet end, the inlet end having an outer exposed surface with an adhesive adhered thereto and circumscribing a predefined area through which access to the passage is obtained.

US Patent:

6629599, Oct 7, 2003

Filed:

Jun 18, 2001

Appl. No.:

09/883774

Inventors:

Laurence Burst Sperry - Boston MA
Anthony Orkin Davlin - Boston MA
Kerry Michael McKinley - New Fairfield CT
George Teofilius Bertram - Newtown CT

Assignee:

Sealed Air Corporation - Saddle Brook NJ

International Classification:

B65D 8132

US Classification:

206219, 206524

Abstract:

An apparatus is disclosed for enhancing the mixing of foam precursors in foam-in-bag precursor systems, to thereby enhance the quality of the resulting foam. The apparatus comprises a heated chamber for storing bags containing the precursors in separate compartments, an opening for dispensing the heated bags, and mechanical agitators for externally agitating the bag containing the separated foam-forming precursors to mix the precursors and form foam. Also, a foam cushion packaging precursor is disclosed and comprises such a heated bag.

US Patent:

6712201, Mar 30, 2004

Filed:

May 14, 2002

Appl. No.:

09/914824

Inventors:

George T. Bertram - Newton CT
William R. Armstrong - Newton CT
Lawrence J. Pillote - Southbury CT
William J. Mahon - Southbury CT
Robert D. Wheeler - Fairfield CT
Laurence B. Sperry - Brighton MA

Assignee:

Sealed Air Corporation - Saddle Brook NJ

International Classification:

B65D 8105

US Classification:

206219, 206524

Abstract:

A packaging system for producing a foam-in-bag cushion upon demand includes a bag of flexible plastic film and defining therein an enclosed space which is vented to the outside of the bag, a foam precursor packet positioned at a predetermined location within the enclosed space in the bag and being formed of a barrier material. The packet includes first and second compartments with a first frangible seal separating the first and second compartments which when ruptured will permit the contents of the compartments to be mixed to form a foam cushion and a second frangible seal between one of the compartments and the enclosed space in the bag. A first foam precursor component is contained in the first compartment of the packet and a second foam precursor component is contained in the second compartment of the packet. The frangible seals have a peel strength of at least about one pound per inch and less than about twelve pounds per inch and more particularly a peel strength of about one pound per inch to about seven pounds per inch. The frangible seals are formed by providing bands of printed area on the facing surfaces of the material forming the packet which is arranged in a matrix of printed and unprinted areas.

US Patent:

6729110, May 4, 2004

Filed:

Jan 22, 2001

Appl. No.:

09/766937

Inventors:

Laurence B. Sperry - Brighton MA
Eric Kane - Lynn MA

Assignee:

Sealed Air Corporation - Danbury CT

International Classification:

B65B 3100

US Classification:

53503, 53 79, 531395, 141 68, 141 95, 141197

Abstract:

A dunnage bag includes a sealed, flexible bag, and a rigid valve assembly connected in fluid communication to the flexible bag. The valve assembly has a rigid collar which mounts in an opening in a wall of a container to receive an exit end of a fill nozzle of an inflating system which supplies pressurized gas for inflating the flexible bag.

US Patent:

6862868, Mar 8, 2005

Filed:

Dec 13, 2002

Appl. No.:

10/319123

Inventors:

Laurence B. Sperry - Boston MA, US
Eric Kane - Lynn MA, US
Jesse Drake - Belmont MA, US
Anthony Davlin - Cambridge MA, US

Assignee:

Sealed Air Corporation (US) - Saddle Brook NJ

International Classification:

B65B001/22

US Classification:

53525, 53127

Abstract:

A system for heating and dispensing foam-in-bag packaging bags comprises a housing that rotatably supports a roll of a continuous web of interconnected foam-in-bag packaging bags, and at least one heater for heating bags to an elevated temperature prior to the bags being dispensed from the housing. A heated bag is dispensed and is detached from the web, and is then manipulated to mix foam precursor chemicals contained in separate compartments in the bag to begin a foam-forming reaction in the bag.

US Patent:

6895732, May 24, 2005

Filed:

Sep 9, 2002

Appl. No.:

10/237507

Inventors:

Laurence B. Sperry - Brighton MA, US
Anthony O. Davlin - Cambridge MA, US
Eric A. Kane - Lynn MA, US
Jesse S. Drake - Belmont MA, US

Assignee:

Sealed Air Corporation (US) - Saddle Brook NJ

International Classification:

B65B043/04

US Classification:

53562, 53553, 53555, 533705, 533735, 533758, 533762

Abstract:

A packaging apparatus includes a pair of rolls forming a nip through which two web portions are passed with an item to be packaged between the web portions. The rolls include resiliently compliant roll portions that deform to accommodate the thickness of the item, and the roll portions press the web portions to seal them together in peripheral regions surrounding the item and to center the item between the webs in the thickness direction. The apparatus also includes side seal devices that traverse inwardly toward the item to seal the webs together close to the item's opposite side edges to prevent the item from laterally shifting. The web portions may have cohesive disposed on their facing surfaces such that the web portions adhere to each other with pressure but tend not to adhere to the packaged item or other surfaces.

US Patent:

6971221, Dec 6, 2005

Filed:

Oct 28, 2004

Appl. No.:

10/975710

Inventors:

Laurence B. Sperry - Brighton MA, US
Anthony O. Davlin - Cambridge MA, US
Eric A. Kane - Lynn MA, US
Jesse S. Drake - Belmont MA, US

Assignee:

Sealed Air Corporation - Saddle Brook NJ

International Classification:

B65B009/00
B65B043/02

US Classification:

53450, 53562, 53555, 533735

Abstract:

A packaging method and apparatus employ web material having cohesive on facing surfaces of two web portions between which an item is packaged. The cohesive adheres to itself by application of pressure alone, without heat, but tends not to adhere to other surfaces. The web portions are sealed together about the item by seal devices that apply pressure without heat to the web portions. The web portions and item can be passed through a resilient nip formed by two rolls, at least one of which has resiliently compliant roll portion(s) for pressing the web portions closely about the item.

US Patent:

6974025, Dec 13, 2005

Filed:

Feb 4, 2004

Appl. No.:

10/771616

Inventors:

George T. Bertram - Newton CT, US
William R. Armstrong - Newton CT, US
Lawrence J. Pillote - Southbury CT, US
William J. Mahon - Southbury CT, US
Robert D. Wheeler - Fairfield CT, US
Laurence B. Sperry - Brighton MA, US

Assignee:

Sealed Air Corporation (US) - Saddle Brook NJ

International Classification:

B65D081/05
B65D081/32

US Classification:

206219, 206524

Abstract:

A packaging system for producing a foam-in-bag cushion upon demand includes a bag of flexible plastic film and defining therein an enclosed space which is vented to the outside of the bag, a foam precursor packet positioned at a predetermined location within the enclosed space in the bag and being formed of a barrier material. The packet includes first and second compartments with a first frangible seal separating the first and second compartments which when ruptured will permit the contents of the compartments to be mixed to form a foam cushion and a second frangible seal between one of the compartments and the enclosed space in the bag. A first foam precursor component is contained in the first compartment of the packet and a second foam precursor component is contained in the second compartment of the packet. The frangible seals have a peel strength of at least about one pound per inch and less than about twelve pounds per inch and more particularly a peel strength of about one pound per inch to about seven pounds per inch. The frangible seals are formed by providing bands of printed area on the facing surfaces of the material forming the packet which is arranged in a matrix of printed and unprinted areas.