7021 results about "Plastic bag" patented technology

Disclosed is a dispensing package that has a plastic backing for maintaining the package in a substantially flat orientation. The plastic backing is adapted to have a label placed on its surface. A score through the label, which extends into the plastic backing, causes the package to open upon flexure. At least one additional score on the opposite side provides at least one metered opening in the package, where the number of scores and metered openings depends on the contents being dispensed. An additional seal can be placed over the score to prevent accidental opening or provide resealing of the package. Promotional pieces can be used as the additional seal. Absorbent material can be placed adjacent or over the score to provide controlled dispensing and application of the contents. The ends of the plastic backing can be configured as an applicator and / or a handle.

A valve assembly for use with a self-sealing collapsible storage bag, the valve assembly having a first portion comprising a housing that has a sealing surface and contains a valve mechanism. A second portion has a sealing surface that is configured to mate with the sealing surface of the first portion. A snap mechanism is configured to allow the first and second portions to be snapped together with their respective sealing surfaces facing each other to form a substantially airtight seal. In operation, the first and second portions are positioned on opposing sides of a panel of a plastic storage bag, and snapped together so as to sandwich the panel between the first and second portions of the valve assembly. The plastic bag is pierced in the area of the valve assembly either during installation of the valve assembly, or later by insertion of a nozzle. Gas or fluid such as air may be selectively removed from or added to the interior of the storage bag through the valve mechanism.

The invention describes means for providing gripping tabs on each side of a plastic bag's mouth to facilitate the opening thereof, especially for flattened bags, which are otherwise difficult to open.

A reclosable plastic bag includes lips that are adjacent to the opening near the top of the bag and which are initially joined to one another by a removable element. The removable element when attached indicates that the bag has not yet been used. When the removable element is no longer attached this indicates that the bag may have been opened and the contents contaminated. The reclosable plastic bag also includes a closure element for sealing and unsealing the top of the bag that incorporates two substantially parallel, but spaced apart, zippers. This combination of two zippers and the spacing between them reduces the likelihood that the closure will leak or inadvertently open.

A reclosable plastic bag includes two panels sealed to form a container having a bottom and an openable top. The plastic bag further includes lips that are adjacent to the openable top and which are initially joined to one another by a removable element. The removable element when attached indicates that the bag has not yet been used. When the removable element is no longer attached this indicates that the bag may have been used (contaminated). The reclosable plastic bag also includes a closure element for sealing and unsealing the openable top of the bag.

A floor construction covered with ceramic tiles, in which a film-like plastic mat having support elements disposed in a uniform area distribution, hollow towards the underside, capable of support, projecting out beyond the top of the mat, is applied on the sub-floor. Channels carrying open water are formed between the support elements, and a water-permeable or vapor-permeable covering in the manner of a non-woven fabric or woven fabric is disposed on the support elements. The plastic mat is embedded and attached, supported in a still soft, hardening thin-bed mortar layer on the sub-floor, over its full area, in the region of its lower contact surfaces. The ceramic tiles are laid and attached on the covering in the manner of a non-woven fabric, directly, with a thin-bed mortar layer.

A pack of self-opening serially-arranged plastic bags of the "star-seal" type defining eight superimposed wall layers in the bag. Mounting tabs form a part of top portions of each of the eight layers and are positioned in superimposed positions and each includes an aperture for mounting the tabs on a tab retaining device of a rack in a non-front-side-free manner. Each of the tabs includes a mechanism for rendering the tab detachable and providing a predetermined detaching strength. In one embodiment, each of the tabs are detachable from the rack and in another embodiment, each of the tabs are detachable from the bag. A frangible bond is formed between the rear layer and the front layer of each successive bag in the pack. This frangible bond has a predetermined strength (1) which is greater than the predetermined detaching strength of two of the tabs and (2) is weaker than the predetermined detaching strength of the remaining six tabs to allow the leading bag of the pack (when pulled by a user for removal) to disengage from the pack, while (before disengagement) pulling the succeeding bag in the pack to cause detaching of the two leading of the tabs for self-opening of the succeeding bag.

A device for collecting waste, a receptacle in which a plastics bin liner bag is placed, a driver for driving a covering for constituting a plastics bag, the covering being contained in a compartment situated in the top portion of the receptacle. The driver serving to deliver the bag from the storage compartment to the bottom of the receptacle; sealing and cutting are used for acting on the covering leaving the compartment and subsequently for closing and separating the bag from the remainder of the covering once the bag has been filled with waste. The waste collector device of the invention may include a compactor for compacting the bag containing waste, and a device or mechanism for opening and closing a central orifice through which waste is introduced via the top portion of the collector device.