Seal for a two-component cartridge
AssigneeSulzer Chemtech AG
InventorNikolaus Brugner
Life of this patent
Estimating the term…
Abstract
A cartridge, particularly a two-component or multi-component cartridge, with at least one cartridge neck and one outlet opening that is closed with a seal that is integrally connected to the cartridge neck, wherein this connection is sectionally realized at least in sections in the form of a predetermined break point, and wherein the cartridge can be opened by tearing off this connection. In order to allow a simple opening of the seal, it contains at least one cap that is integrally connected to the cartridge neck and at least one tear-off element that is integrally connected to the cap, wherein the connection between the cap and the cartridge neck can be torn off manually by exerting tensile force on the tear-off element.
Claims18
A multi-component cartridge comprising:
- at least one cartridge neck, integrally formed with a cartridge housing and including at least two outlet openings;
- and
- a seal integrally formed with the at least one cartridge neck as a unitary element, the seal including a single cap and a single rear-off element that is integrally formed to the single cap and an outer circumference of the at least two outlet openings, such that the single tear-off element secures the single cap over the at least two outlet openings sealing closed the at least two outlet openings,
- wherein the single tear-off element includes a predetermined break point such that the single cap can be separated from the cartridge neck by tearing off the single tear-off element along the predetermined break point,
- wherein the single tear-off element can be manually torn off by exerting tensile force upon the tear-off element by one or more fingers of a hand of a user without the use of any auxiliary means, and
- wherein the at least two outlet openings can be simultaneously exposed by pulling on the single tear-off element.
A multi-component cartridge comprising:
- at least one cartridge neck including an outlet opening;
- and
- a seal that is integrally connected to the cartridge neck, such that the seal closes the outlet opening,
- wherein the integral connection of the seal to the cartridge neck includes a predetermined break point such that the cartridge can be opened by tearing off said connection to facilitate the removal of the seal from the cartridge neck,
- wherein the seal contains at least one cap that is integrally connected to the cartridge neck and at least one tear-off element that is integrally connected to the cap, such that the connection between the cap and the cartridge neck can be manually torn off by exerting tensile force upon the tear-off element, and
- wherein at least one additional predetermined break point that is intended for being cut off with a cutting tool is provided in addition to the predetermined break points that can be torn off by means of the tear-off element, wherein the cross section of the outlet openings that results from cutting off the additional predetermined break points is larger than the cross section resulting from tearing off the predetermined break points by means of the tear-off ring.
Dependencies are inferred from the claim text.