Abstract: A portable plastic film wrapping system comprises a push-cart having a vertical mast member mounted thereon. A film roll carriage is vertically movable along the mast member, and the film roll carriage is operatively connected to a counterweight which is movably disposed within the mast member. The mast member is provided with a plurality of apertures, and a releasable stop pin is engageable within a particular one of the mast member apertures so as to lockingly retain the film roll carriage at a particular elevation when concentric reinforcing wrapping of an article is desired, and is disengageable from the apertures so as to permit the film roll carriage to continuously elevate for spiral wrapping of the article.

Abstract: A portable plastic film wrapping system comprises a push-cart having a vertical mast member mounted thereon. A film roll carriage is vertically movable along the mast member, and the film roll carriage is operatively connected to a counterweight which is movably disposed within the mast member. The mast member is provided with a plurality of apertures, and a releasable stop pin is engageable within a particular one of the mast member apertures so as to lockingly retain the film roll carriage at a particular elevation when concentric reinforcing wrapping of an article is desired, and is disengageable from the apertures so as to permit the film roll carriage to continuously elevate for spiral wrapping of the article.

Abstract: A portable film wrapping system comprises a push-cart having a vertical mast member and a film roll carriage movably mounted upon the vertical mast member. A lift cable connects the film roll carriage to a lift cable drum which is rotatably connected to a lift sprocket through a clutch mechanism, wherein the lift sprocket is rotatably connected to a drive wheel engaged with a floor surface over which the portable system is movable. When the clutch mechanism operatively connects the lift cable drum to the lift sprocket, the lift cable drum is rotated so as to wind the lift cable thereon and thereby continuously elevate the film roll carriage whereby spiral wrapping is achieved. When the clutch mechanism disconnects the lift cable drum from the lift sprocket, the lift cable is no longer wound upon the lift cable drum whereby the film roll carriage is maintained at a particular elevation so as to achieve concentric reinforcing wrapping.

Abstract: A film delivery system for use with plastic film wrapping apparatus for wrapping prestretched plastic film around a palletized load or article disposed at a wrapping station comprises a brake hub or pulley upon which a roll of plastic film material is mounted, and a single dancer or idler roller mounted for linear reciprocating movement upon a mounting plate and around which the plastic film material is routed from the roll of plastic film material to the load or article being wrapped. A brake band is disposed around the outer peripheral surface of the brake hub, and one end of the brake band is connected to a brake arm, while the other end of the brake band is connected to a brake adjustment spring. The brake arm is also connected to the single dancer or idler roller such that depending upon the linear disposition of the single dancer or idler roller during a plastic film wrapping operation, different braking or tension forces are impressed upon the brake hub and the plastic wrapping film material.

Abstract: A portable film wrapping system comprises a push-cart having a vertical mast member and a film roll carriage movably mounted upon the vertical mast member. A lift cable connects the film roll carriage to a lift cable drum which is rotatably connected to a lift sprocket through a clutch mechanism, wherein the lift sprocket is rotatably connected to a drive wheel engaged with a floor surface over which the portable system is movable. When the clutch mechanism operatively connects the lift cable drum to the lift sprocket, the lift cable drum is rotated so as to wind the lift cable thereon and thereby continuously elevate the film roll carriage whereby spiral wrapping is achieved. When the clutch mechanism disconnects the lift cable drum from the lift sprocket, the lift cable is no longer wound upon the lift cable drum whereby the film roll carriage is maintained at a particular elevation so as to achieve concentric reinforcing wrapping.

Abstract: A film delivery system for use with plastic film wrapping apparatus for wrapping prestretched plastic film around a palletized load or article disposed at a wrapping station comprises a brake hub or pulley upon which a roll of plastic film material is mounted, and a single dancer or idler roller mounted for linear reciprocating movement upon a mounting plate and around which the plastic film material is routed from the roll of plastic film material to the load or article being wrapped. A brake band is disposed around the outer peripheral surface of the brake hub, and one end of the brake band is connected to a brake arm, while the other end of the brake band is connected to a brake adjustment spring. The brake arm is also connected to the single dancer or idler roller such that depending upon the linear disposition of the single dancer or idler roller during a plastic film wrapping operation, different braking or tension forces are impressed upon the brake hub and the plastic wrapping film material.

Abstract: An apparatus and method for manually applying stretch film to palletized loads or products comprises a vertically upstanding mast member, a horizontally extending static boom member connected to the mast member, a horizontally extending orbiting boom member rotatably connected to the static boom member, and a vertically extending downright member connected to the orbiting boom member. A carriage assembly carrying a roll of stretch film is movably mounted upon the downright member in a counterbalanced manner, and an operator handle is fixed upon the carriage assembly so as to enable an operator to manually push the carriage assembly, the downright member, and the orbiting boom member in a circular locus around a wrapping station at which a palletized load or product is disposed for wrapping.

Abstract: An inflatable dunnage bag comprises a first inflatable inner bag comprising an inflatable bladder surrounded by at least one paper ply, and a second outer bag comprising at least one paper ply, or two or more paper plies whereby the number of paper plies comprising the entire composite inflatable dunnage bag, that is, the number of paper plies comprising the inner bag and the number of paper plies comprising the outer bag, is an odd number of paper plies. Consequently, the number of paper plies required to fabricate an inflatable dunnage bag, while maintaining the structural integrity and burst strength characteristics thereof for predetermined load applications, is effectively reduced with respect to currently manufactured dunnage bags.

Abstract: A meltblowing method and apparatus for dispensing an adhesive through a plurality of first orifices of a die assembly fabricated from a plurality of laminated members to form a plurality of adhesive flows at a first velocity, and dispensing air through a plurality of second orifices in the die assembly to form a plurality of air flows at a second velocity. The plurality of first and second orifices arranged in an alternating series so that each of the plurality of first orifices is flanked on substantially opposing sides by one of the plurality of second orifices, wherein the plurality of first and second orifices are oriented to direct non-convergently the plurality of adhesive flows and the plurality of air flows.

Abstract: An inflatable dunnage bag is comprised of a first and independently sealed bag that is inserted within a paper tube before the tube ends are sealed to form a second, independent bag. The combination of an inner bag within an outer bag provides increased bursting strength compared to similar ply bags created as only a single bag. The combination bag is much easier to construct since at least two plies of paper that are pressed to form the inner bag are no longer part of the bag end folding and sealing process. This is especially true if the outer bags ends are sealed by stitching them together.

Abstract: An inflatable dunnage bag is comprised of a first and independently sealed bag that is inserted within a paper tube before the tube ends are sealed to form a second, independent bag. The combination of an inner bag within an outer bag provides increased bursting strength compared to similar ply bags created as only a single bag. The combination bag is much easier to construct since at least two plies of paper that are pressed to form the inner bag are no longer part of the bag end folding and sealing process. This is especially true if the outer bags ends are sealed by stitching them together.

Abstract: A stretch film applicator and method therefor for manually wrapping stretch film supplied from a stretch film roll having a core. The stretch film applicator includes a substantially U-shaped handle member interconnecting a first core cap and a second core cap wherein the first core cap is disposeable over a first end of the core and the second core cap is disposeable over a second end of the core. An adjustably pre-loadable spring member is disposed between the first core cap and the first end portion of the handle member so as to bias the first core cap toward the second core cap and thereby rotatably retain the stretch film roll therebetween and frictionally drag the core as stretch film is supplied therefrom. A body member is coupled to the first end portion of the handle member and includes a through hole for reciprocatably receiving a post coupled to the first core cap, wherein the spring member is disposed between the body member and the first core cap.

Abstract: The present invention discloses an inverted V-shaped bulkhead void filler having a novel non-pivotable, but disengagable, fastener for filling empty spaces in a cargo area during shipping. The bulkhead void filler has first and second rigid panels of a sandwich-type construction attached by the fastener at an upper end of each of the panels. To form the novel non-pivotable, but disengagable, fastener, the upper end of the second panel fits snugly against and is attached to a portion of a core of the first panel, and a portion of the first panel overlaps and is attached to the second panel.