Mobil Oil Corporation

Fox J Herrington

Vernon C Catchman

Kevin Broderick

Donald Stell

Eric A St Phillips

Robert H Olson

Shirley K Johnston

Edward M Bullard

Edward G Grosz

Stephen K Guerrera

Daniel J DiBiasi

Clyde C Tendick

Ivy Wolpin

James P O'Sullivan, Sr

Alex Goncarovs

Eric A St Philips

Richard A Holland

Latching means is provided for retaining a plastic slider in closed position when the slider reaches the closed end of its travel along a zipper. The latching means disclosed is in the form of a detent on the plastic slider which engages with a protrusion on the zipper track to provide the feel of a secure closure and retain the slider in a closed position.

Plastic reclosable fastener with structure for retaining slider in

A method is disclosed for making end terminations for a plastic reclosable fastener or zipper, which incorporates a stop for the zipper slider wherein the zipper profile is cut apart with a hot knife which forces the melted material into cavities forming the end stops.

Method of making protruding end stops for plastic reclosable fastener

A foldable plastic slider having a pair of hinged wings that fold downwardly and secured permanently in place to the opposite sides of the slider body to attach it to the plastic reclosable fastener elements when manufacturing a thermoplastic bag. The wings are hinged at the top of the slider body to provide for ease in molding the slider using a simple 2-piece mold.

Gull wing zipper slider

A disposable plastic cup dispenser incorporating a spring for imparting biasing action to a stack of nested cups in the dispenser so as to render the cups available for individual and discrete dispensing thereof. The spring is in a compressed condition and extends intermediate the inner bottom wall surface of the container and the bottom of the lowermost cup of the stack of cups, thereby biasing the stack of cups towards a discharge or dispensing opening formed in the opposite end of the housing through which the endmost cup of the stack partially protrudes.

Disposable plastic cup dispenser with spring

A thermoplastic bag having a flexible top has a stiff strip around the mouth of the bag which when rolled outward bends to hold open the bag.

Hold-open bag top

A leakproof plastic reclosable fastener or zipper with slider particularly suited for thermoplastic bags. The zipper is formed by reclosable interlocking rib and groove profile elements on respective strips and the strips each include profiled track structure extending along the length thereof parallel to the rib and groove elements. A straddling slider is positioned on the strips for closing or opening the reclosable fastener elements. The slider includes depending side walls for maintaining the track structure and the rib and groove elements therebetween. The slider also includes separator structure inserted between the track structure but not the rib and groove elements to open the rib and groove elements. The zipper structure is slit or notched locally at the end where the slider goes when the zipper is closed, to allow the rib and groove elements to interlock fully making a leakproof closure.

Leakproof zipper with slider

A pad of a plurality of sealable-unsealable bags comprising a stack of the bags, each bag comprising a front and rear wall closed at the sides and bottom and having a region of access to between the walls; a closure flap as an integral extension of the back wall, the flap having an inside and an outside surface relative to the bag in its sealed condition; an adhesive region located on a portion of the inside surface of the flap; and at least the adhesive-bearing portion of said flap being reverse-folded, outside surface-to-outside surface and the adhesive-bearing inside surface positioned in releasable adhesive contact with a non-adhesive bearing portion of the inside surface of the flap of a preceding bag in the stack.

Pad of bags

A foldable plastic slider having one or more hinged wings that fold and snap permanently in place to attach it to the plastic reclosable fastener elements when manufacturing a thermoplastic bag.

Foldable plastic slider and method of assembly with a plastic reclosable

A method of assembling a snapped-together multipart plastic slider with a plastic reclosable fastener on plastic bags is disclosed. The multipart plastic slider includes a separator finger and two side walls mechanically snapped together in place on the plastic bags.

Method of assembling a snapped-together multipart plastic slider with a

A novel zipper profile is disclosed in which the cross-sectional shape of the zipper is such that it can be closed most easily by pressing the bottom together first, then rolling it closed toward the top. The novel slider is shaped so that it operates in this fashion on the zipper profile, holding the top open while it presses the bottom together, then presses the top together while the slider passes by.

Rolling action zipper profile and slipper therefor

An apparatus for the sequential loading of a plurality of cartons with articles, such as plastic bags and the like, and more particularly, an indexing system for such an apparatus to increase the rate of feed of the cartons to bag-loading stations which are contained in the apparatus.

Two-stage box pusher for carton indexer

An apparatus for the production of a tubular thermoplastic film, and more particularly, a water bath film cooling apparatus for the rapid quenching of an extruded tubular thermoplastic film so as to enhance the speed of cooling thereof, and increase the strength of the film material. Also disclosed is a method of rapidly cooling a thermoplastic film material through the intermediary of a water bath, utilizing the inventive cooling apparatus. A predetermined internal pressure is maintained within the tube by a gaseous medium, such as air, which is slightly higher than the external pressure imparted to the film tube by the water bath, so as to enhance the speed of cooling of the film materials and increase the strength of the film by minimizing the premature crystallinity thereof upon extrusion of the film and passage through the cooling apparatus. The pressure differential between the interior and exterior of the film tube is maintained by an external liquid or water column acting on the pressurized gas or air being introduced into the thermoplastic film tube, and herein the height of the water column is correlated with the height of the external water bath surrounding the film tube so as to provide for the maintenance of a predetermined pressure differential between the inside and outside of the extruded film tube during its passage through the water bath.

Water bath film cooling apparatus and method

A tape is made of plastic with high elongation, then is coated on one or both sides with pressure-sensitive adhesive. The adhesive is then coated with a brittle coating material. In use, the tape is manually stretched, causing the brittle coating to crack and separate, exposing the adhesive. The tape is then wrapped around the neck of a bag to effect a closure.

Stretchy sticky tape bag tie closure

A plastic tape is coated with adhesive in alternating spots, then folded in corrugations to cover the spots of adhesive. In use, the tape is manually stretched to expose the adhesive, then wrapped around the neck of a bag to effect a closure.

Corrugated sticky tape bag tie closure

A method of extruding a continuous profiled fastener onto a thermoplastic film substrate, and more particularly, a method for the continuous bonding of a profiled fastener assembly to a thermoplastic cuff film substrate through the intermediary of hot extrusion.

Growing community of inventors

Holcomb, NY, United States of America

Fox J Herrington