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| Number | Title | Issue Date |
| 7311442 | Air valve for a fillable poly bag An air valve for a poly bag that permits the escape of air from the bag as it is filled by a filling tube. The air valve consists of a plurality of slitted openings in one top corner of the bag and a valve flap mounted in the poly bag near the slitted openings that ... | 12/25/2007 |
| 7175583 | Square bottomed plastic bag stack and method of making same A method for manufacturing square bottom plastic bags designed to stand upright when opened. The bags are constructed with open tops, side handle openings and attached headers or with t-shirt style handles. The bags are produced in registered bag stacks and include ... | 02/13/2007 |
| 7082242 | Multiple core microstructured optical fibers and methods using said fibers The present invention relates to a microstructured optical fiber including a photonic band gap-guided core; and at least one index-guided core. Another embodiment of the present invention relates to a microstructured optical fiber including a set of main cores; a mi... | 07/25/2006 |
| 7077900 | Method for fabricating optical fiber preform using extrusion die Disclosed is a method of fabricating a photonic crystal fiber preform using an extrusion die, comprising the step of extruding a first optical material into a plurality of dispersed phases to axially orient the dispersed phases. ... | 07/18/2006 |
| 6918699 | Flat bottom bag with handle A tubular sleeve is shaped with a pair of opposing faces, a pair of opposing side walls, and a lowermost terminal edge. Double gussets are simultaneously formed on each opposing side walls of the shaped sleeve inward between the pair of opposing faces of the shaped ... | 07/19/2005 |
| 6623162 | Block bottom bag A block bottom bulk material bag, or satchel bottom bag, is formed from multiple plies of paper and an inner ply of plastic that is adhered to the innermost ply of paper. The bag is formed from roll-stock material that is cut into blanks. The knives that ... | 09/23/2003 |
| 6150647 | Flexible, cushioned, high surface area food storage and preparation bags A food storage and preparation bag at least one sheet of flexible sheet material assembled to form a semi-enclosed container having an opening defined by a periphery and a closure for sealing the opening to convert the semi-enclosed container to a closed ... | 11/21/2000 |
| 5568980 | Quasi-heat seal SOS bag A flat-bottom bag is provided having a folded bottom. Improved adhesive patterns are provided on the bag prior to folding. A first adhesive is provided in a plurality of parallel lines interiorly disposed in a bottom end of the bag. The lines are arranged... | 10/29/1996 |
| 5553943 | Multiple ply plastic lined bag with satchel bottom A multiple ply open mouthed bag with a rectangular satchel bottom having a plurality of tubular paper plies enclosing a seamless inner plastic pouch capable of heat sealing and/or severance at said open mouth. The paper plies may be made capable of pinch,... | 09/10/1996 |
| 5529394 | Packing bag and fill-seal process A one piece flat bottomed gusseted bag is provided which may be bottom filled and flat sealed. This structure permits a resealable bag to be filled and sealed without opening the resealable seal. The bag is formed with a revertive pocket at the bottom ext... | 06/25/1996 |
| 5520464 | Heat seal SOS bag A self-opening style bag formed of a tube with a bottom constructed of folded-inward-portions of side walls and overlying portions of front and rear walls, all folded around a perimeter fold line. The tube provides adhesive strips on portions of the botto... | 05/28/1996 |
| 5518316 | Heat sealed bag A self-opening style bag formed from a paper tube of rectangular configuration wherein portions of the side walls are folded inward to form a bottom and thereafter are surrounded by folded over portions of the front and rear walls to complete the bottom. ... | 05/21/1996 |
| 5314252 | Sealable square bottom container apparatus A sealable square bottom container apparatus comprising one or more plies of sheet material. The square bottom of the container apparatus includes a continuous ring of sealable adhesive to form a substantially sift-proof bottom panel after articulation an... | 05/24/1994 |
| 5302790 | Microwave popcorn popping bag For popping popcorn in a microwave oven, a flexible bag is provided which contains popcorn and includes a collapsible stand. The bag has upper and lower opposing face panels connected together by longitudinally extending, centrally projecting gussets that... | 04/12/1994 |
| 5163756 | Bag construction with auxiliary flap There is disclosed herein a flexible bag in which the back panel is defined by inner and outer overlapping sections that overlap to form a back seam. The outer section defines a removable section which has a first perforation generally parallel to the bac... | 11/17/1992 |
| 5100005 | Trash bags for recyclable articles and system and method for collecting recyclable waste A trash bag for recyclable waste which will eliminate a second collection of recyclables and having color or another type of code thereon to permit the bag to be identified and separated from trash bags containing ordinary trash, and a system and method f... | 03/31/1992 |
| 5011299 | Bag construction A bag of the gusseted square-bottom type having a generally rectangular bottom including a rectangular bottom fold portion and a triangular bottom fold portion is made with the triangular fold portion overlapping the rectangular fold portion. The triangul... | 04/30/1991 |
| 4730942 | Flexible bulk containers A flexible bulk container comprises a tubular side wall structure (1 to 4) of woven fabric, lifting means (13) at an upper end of the side wall structure, and a base (14) closing the lower end of the side wall structure. The base is in the form of a polyg... | 03/15/1988 |
| 4627470 | Sealing ducts In an iris-stop arrangement for stopping-off a duct the secondary bag has a contact length with the duct of at least 0.7 times its diameter. The apparatus is such that the point where the inflation neck of the bag meets the remainder of the bag can adopt ... | 12/09/1986 |
| 4613988 | Thermoplastic bag and method of forming the same A plastic film sack having gussetted side walls, and in the bottom of said sack, a heat-seal stripe welding together the four film layers in the gusseted regions of the sack and a heat seal stripe welding together the two film layers between said gusseted... | 09/23/1986 |
| 4584705 | Flexible container A flexible container for filling, transport and storage of bulk material is made from at least one piece of base material. The bottom of the container is formed from at least four paired, preferably equally large, flaps which are direct extensions of the ... | 04/22/1986 |
| 4498192 | Bag having an overlapped closure and method of fabricating the same An improved bag construction, and a method of bag forming, are disclosed which gives an economical yet strong, burst- and leak-resistant closure without the necessity of sewing or use of expensive stepped cut tubes. The bag is formed using a tube having o... | 02/05/1985 |
