Solid material valve for pressurized cans, especially for the discharge of mounting foams, provided with a valve body (2) arranged in a valve disk (1), a stem (3) guided within a central cut-out (21) of the valve body (2), with at least one inlet opening cleared for the passage of the can contents b
Solid material valve for pressurized cans, especially for the discharge of mounting foams, provided with a valve body (2) arranged in a valve disk (1), a stem (3) guided within a central cut-out (21) of the valve body (2), with at least one inlet opening cleared for the passage of the can contents by actuating said stem (3) as well as one central discharge opening, one elastic element (4) acting on the stem (3) and sealing elements (22, 23) arranged and acting between the valve disk (1) and valve body (2) and between valve body (2) and stem (3), the elastic element (4) being provided with at least one formed part made of a rubber-elastic material and surrounding the stem (3) concentrically, with said elastic element (4) resting on the valve body (2) at the can side and on the stem (3) at the valve side.
대표청구항▼
1. Solid material valve for pressurized cans, provided with a valve disk, a valve body (2) arranged in the valve disk (1), a stem (3) guided within a central cut-out (21) of the valve body (2), with at least one inlet opening (33) cleared for the passage of the can contents by actuating said stem (3
1. Solid material valve for pressurized cans, provided with a valve disk, a valve body (2) arranged in the valve disk (1), a stem (3) guided within a central cut-out (21) of the valve body (2), with at least one inlet opening (33) cleared for the passage of the can contents by actuating said stem (3) as well as at least one discharge opening, one elastic element (4) acting on the stem (3) and sealing elements (22, 23) arranged and acting between the valve disk (1) and valve body (2) and between valve body (2) and stem (3), characterized in that the elastic element (4) is provided with at least one formed part made of a rubber-elastic material and surrounding the stem (3) concentrically with said elastic element (4) being a separate component from the valve body and resting in a concentric enlargement (27) of the central cut-out of the valve body (2) at the can side and on the stem (3) at the valve side. 2. Solid material valve according to claim 1, characterized in that the valve disk (1) consists of a central section (11) with a trough-shaped profile and an upright inner rim (12) at which the valve body (2) is located. 3. Solid material valve according to claim 2, characterized in that the valve body (2) has an upright rim (24) provided with an outward projection (25) engaging with and extending over the inside rim (12) of the valve disk (1). 4. Solid material valve according to any one of the above claims, characterized in that the valve body (2) is provided towards the can side with a concentric circumferential outer ring (26) that serves stabilizing purposes. 5. Solid material valve according to claim 1, characterized in that the valve body (2) in its contact zone to the valve disk (1) is provided with concentric circumferential sealing lips (22). 6. Solid material valve according to claim 5, characterized in that the sealing lips (22) act on an inwardly rounded area (13) of the valve disk (1) at the base of the inner rim (12). 7. Solid material valve according to claim 1, characterized in that the valve body (2) is provided with at least one concentric circumferential sealing lip (23) acting against a sealing face or seat (31) arranged on a stem (3). 8. Solid material valve according to claim 7, characterized in that the sealing face or seat (31) is a concentric enlargement of the stem (3) located at the can-side stem end and having a tapered or arched outer contour. 9. Solid material valve according to claim 7 or 8, characterized in that the valve body is provided with two sealing lips (23) spaced away from each other and arranged in parallel with the stem (3) and acting on the sealing face or seat (31) of stem (3). 10. Solid material valve according to claim 1, characterized in that on the valve side the stem (3) has a groove (32) which accommodates a retaining ring (5), with the elastic element (4) abutting against the can-side face (51) of said ring and with the elastic element (4) consisting of a thermoplastic elastomer. 11. Solid material valve according to to claim 10, characterized in that the elastic element (4) is additionally provided with a spring element (43) integrated into and/or strengthening the elastic element (4), and said elastic element (4) consists of bottom part (41), top part (42) as well as coil spring (43) which are located between bottom part (41) and top part (42) or be provided in the form of a spring cage (60) secured on the can side of the valve disk (1) or valve body (2), said cage acting against the can-side end of the stem (3). 12. Solid material valve according to claim 1, characterized in that the elastic element (4) is provided on the can side end with two circumferential inner sealing lips (44) and a circumferential concentric recess (46) arranged between said lips. 13. Pressurized can for the discharge of mounting foam, being provided with a solid material valve in accordance with claim 1.
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이 특허에 인용된 특허 (4)
Stern Donald J. (Bellingham WA) Tryon James A. (Seattle WA), Aerosol spray texture apparatus and method for a particulate containing material.
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