CRYSTALLIZED PLASTIC VALVE FOR AN AEROSOL DISPENSER AND HOUSING THEREFOR

• US 20190315559A1
• Filed: 04/16/2018
• Published: 10/17/2019
• Est. Priority Date: 04/16/2018
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: MAGNESS, Robert Earl, DALTON, David Andrew, ZEIK, Douglas Bruce
• Granted Patent: US 10,836,562 B2
• Time in Patent Office: Days
• CPC Class Codes: B65D 83/32 Dip-tubes
• CPC Class Codes: B65D 83/38 Details of the container body pressure relief devices B65D83/70
• CPC Class Codes: B65D 83/44 Valves specially adapted therefor; Regulating devices filling or discharging means B65D83/42; pressure regulators releasing propellant inside the container B65D83/663; pressure relief devices B65D83/70
• CPC Class Codes: B65D 83/62 by membrane, bag, or the like containers in which the content is delivered by the contracting forces inherent in the bag B65D83/0061

Abstract

A valve for an aerosol dispenser. The valve has a housing as a chassis for other components of the valve. The housing perimetrically joins the valve to an outer container for the aerosol dispenser. The housing has a hole with a moving valve stem to selectively dispense product, upon actuation. The housing, or portions thereof, may be crystallized, to provide strength and dimensional stability, to reduce leakage.

Claims

1. A valve for use in an aerosol dispenser, the valve comprising:

a housing, the housing having a lower platform for attachment to an outer container of an aerosol dispenser, the platform having a housing hole therethrough, and at least one of an inner collar projecting upwardly from the platform or a lower collar projecting downwardly from the platform;

a seal circumscribing the housing hole and having a seal hole therethrough;

a valve stem slidably disposed in the seal hole; and

a reinforcing sleeve in radial contact with at least one of the inner collar and the lower collar, the reinforcing sleeve being selected from the group consisting of crystallized polymeric material, metal and carbon fiber.

2. The valve according to claim 1 wherein the at least one collar is a lower collar and the sleeve is fitted radially external to the lower collar.

3. The valve according to claim 1 wherein the at least one collar is a lower collar and the sleeve is a crystallized PET sleeve friction fitted to the lower collar.

4. The valve according to claim 1 wherein the at least one collar is an inner collar and the sleeve is fitted radially external to the inner collar.

5. The valve according to claim 1 wherein the at least one collar is an inner collar and the sleeve comprises carbon fiber fitted radially external to the inner collar.

6. The valve according to claim 1 wherein the platform is crystallized.

7. A housing for a valve usable in an aerosol dispenser, the housing comprising:

a lower platform, the platform having a housing hole therethrough;

an inner collar projecting upwardly from the lower platform; and

an outer collar projecting upwardly from the lower platform,

wherein the platform comprises a downwardly sloped pocket circumscribing the housing hole and a flange extending from the downwardly sloped pocket,

wherein at least a portion of the platform being crystallized.

8. The housing according to claim 7 wherein the inner collar is disposed radially outward of the housing hole and the outer collar disposed radially outward of the inner collar.

9. The housing according to claim 7 wherein each of the inner collar and the outer collar circumscribing the housing hole.

10. The housing according to claim 7 wherein the entire platform being crystalized and the inner collar and the outer collar being amorphous.

11. The housing according to claim 7 wherein the flange extends radially outwardly of the sloped pocket, and wherein the entire platform is crystallized.

12. The housing according to claim 7 wherein the pocket is crystallized and the flange is amorphous.

13. The housing according to claim 7, wherein at least one of the inner collar and the outer collar having circumferentially spaced reinforcing ribs joined thereto.

14. The housing according to claim 7 wherein the entire platform is crystallized and further comprising a seal concentrically disposed within the housing hole.

15. An aerosol dispenser comprising:

an outer container having a closed end bottom and a neck with an opening therethrough;

a product delivery device disposed in the outer container,

a propellant disposed within the outer container at a pressure greater than atmospheric pressure;

a normally closed valve sealingly disposed in the neck for selectively dispensing a product from the aerosol dispenser, the normally closed valve comprising a housing having a lower platform joined to the neck, the platform having a housing hole therethrough, at least a portion of the platform being crystallized; and

an inner collar projecting upwardly from the platform and a lower collar projecting downwardly from the platform.

16. The aerosol dispenser according to claim 15 wherein the entire platform is crystallized to at least 20%.

17. The aerosol dispenser according to claim 16 wherein the entire platform is crystallized to at least 30%.

18. The aerosol dispenser according to claim 15 wherein the entire platform is crystallized to a platform percentage and the neck is crystallized to a neck percentage, the platform percentage and the neck percentage being substantially equal.

19. The aerosol dispenser according to claim 15 wherein the platform comprises a downwardly sloped pocket circumscribing the housing hole and a flange disposed radially outwardly of the sloped pocket, the flange being crystallized to a flange percentage and the neck is crystallized to a neck percentage, the flange percentage and the neck percentage being substantially equal.

20. The aerosol dispenser according to claim 15 wherein the entire platform is crystallized to at least 20% and further comprising a product in fluid communication with the product delivery device and an actuator operable connected to the valve.

21. The aerosol dispenser according to claim 19 wherein the entire platform 31 is crystallized to at least 20% and further comprising a product in fluid communication with the product delivery device and an actuator operably connected to the valve.