Cavity depth increasing retainer

• US 5,735,533 A
• Filed: 01/03/1997
• Issued: 04/07/1998
• Est. Priority Date: 01/03/1997
• Status: Expired due to Term

• Current Assignee: Talon Innovations Corporation (ICHOR Holdings, Ltd.)
• Original Assignee: EG&G Pressure Science, Inc. (Revvity, Inc.)
• Inventors: Swensen, Jeffrey E., Nolan, Terence J., Spence, J. Loyd
• Primary Examiner(s): Cummings, Scott
• Application Number:
  US08/778,636
• Time in Patent Office: 459 Days
• Field of Search: 277/1, 277/9, 277/11, 277/180, 277/181, 277/183, 277/189, 277/235 B
• US Class Current: 277/630
• CPC Class Codes: F16J 15/062 characterised by the geometry of the seat

Abstract

A sealing assembly is disclosed for creating a seal between first and second mating members or components. The sealing assembly basically includes a seal retainer with one or more annular seals coupled thereto. The seal retainer including a substantially flat body portion lying in a plane and with at least one resilient retaining element integrally formed with the body portion as a one-piece, unitary member for engaging the seal or seals to retain the seal or seals thereto. In the preferred embodiment, the seal retainer is folded to form three layers. In particular, the body portion of the seal retainer has a main supporting layer with four tabs foldably coupled thereto.

Claims

1. A seal retainer for coupling at least one seal thereto, comprising:

a main layer lying in a plane and having a first thickness with at least one seal receiving aperture formed therein;

at least one resilient retaining element extending inwardly from said main layer into said at least one seal receiving aperture to a free end, said at least one retaining element being resiliently cantilevered relative to said main layer to permit said free end of said retaining element to be resiliently deflected out of said plane of said main layer to engage a cavity of the seal; and

a second layer with a second thickness integrally coupled to said main layer as a one-piece, unitary member and overlapping a portion of said main layer which increases overall thickness of said seal retainer.

2. A seal retainer according to claim 1, wherein

one of said layers includes at least one mounting hole spaced from said at least one seal receiving aperture.

3. A seal retainer according to claim 2, wherein

said at least one mounting hole is shaped and sized for engaging a mounting member to retain said seal retainer thereon.

4. A seal retainer according to claim 1, wherein

said main layer, said second layer and said at least one retaining element are constructed of a thin, flexible metallic material.

5. A seal retainer according to claim 1, wherein

said main layer has a plurality of said retaining elements with free ends adapted to engage the at least one seal.

6. A seal retainer according to claim 5, wherein

said free ends of said retaining elements at least initially lie in a plane of said main layer and independently engage the at least one seal.

7. A seal retainer according to claim 5, wherein

said free ends of said retaining elements are curved.

8. A seal retainer according to claim 1, wherein

said second layer includes a pair of tabs with one of said tabs being located on each side of said seal receiving aperture.

9. A seal retainer according to claim 1, further comprising

a third layer with a third thickness integrally coupled to said main layer as a one-piece, unitary member and overlapping a portion of said main layer to further increase overall thickness of said seal retainer.

10. A seal retainer according to claim 9 wherein

said second and third layers lie on opposite sides of said main layer.

11. A seal retainer according to claim 9, wherein

said second layer includes a pair of first tabs with one of said first tabs being located on each of said seal receiving aperture;

and

said third layer includes a pair of second tabs with one of said second tabs being located on each side of said seal receiving aperture.

12. A seal retainer according to claim 9, wherein

said main layer has a plurality of said retaining elements with free ends adapted to engage the at least one seal.

13. A seal retainer according to claim 12, wherein

said retaining elements are resiliently cantilevered relative to said main layer to permit a seal coupled thereto to be deflected out of said plane of said main layer.

14. A seal retainer according to claim 13, wherein

one of said layers includes locating and retaining means for coupling said seal retainer in a desired location of a mating component to be sealed.

15. A seal retainer according to claim 1, wherein

said second layer is spaced from said at least one seal receiving aperture along said plane of said main layer.

16. A seal retainer for coupling at least one seal thereto, comprising:

a main layer having a first thickness with at least one seal receiving aperture formed therein;

at least one resilient retaining element extending inwardly from said main layer into said at least one seal receiving aperture to a free end; and

a second layer with a second thickness integrally coupled to said main layer as a one-piece, unitary member and overlapping a portion of said main layer which increases overall thickness of said seal retainer,

said main layer, said second layer and said at least one retaining element being constructed of a thin material having a thickness ranging from approximately 0.003 inch to approximately 0.005 inch.

17. A sealing assembly for creating a seal between first and second members, comprising:

at least one annular seal with first and second longitudinally facing sealing surfaces and an outwardly facing cavity located between said first and second longitudinally facing sealing surfaces; and

a seal retainer including a main layer having a first thickness with at least one seal receiving aperture formed therein, at least one resilient retaining element integrally formed with said main layer for engaging said cavity of said at least one seal to retain said at least one seal thereto, and a second layer having a second thickness integrally coupled to said main layer as a one-piece, unitary member and overlapping a portion of said main layer which increases overall thickness of said seal retainer, said at least one retaining element being resiliently cantilevered relative to said main layer to permit said free end of said retaining element to be resiliently deflected out of said plane of said main layer to engage said cavity of said at least one seal.

18. A sealing assembly according to claim 17, wherein

said cavity is a continuous, annular groove.

19. A sealing assembly according to claim 18, wherein

said at least one seal is a circular ring seal.

20. A sealing assembly according to claim 17, wherein

said main layer, said second layer and said at least one resilient retaining element are constructed of a thin, flexible metallic material.

21. A sealing assembly according to claim 20, wherein

said main layer has a plurality of said retaining elements with free ends adapted to engage said at least one seal.

22. A sealing assembly according to claim 21, wherein

said free ends of said retaining elements lie at points on a circle.

23. A sealing assembly according to claim 22, wherein

said retaining elements are resiliently cantilevered relative to said main layer to permit a seal coupled thereto to be deflected out of said plane of said main layer.

24. A sealing assembly according to claim 17, wherein

one of said layers includes at least one mounting hole spaced from said at least one seal receiving aperture.

25. A sealing assembly according to claim 24, wherein

said at least one mounting hole is shaped and sized for engaging a mounting member to retain said main layer thereon.

26. A sealing assembly according to claim 17, wherein

said second layer includes a pair of tabs with one of said tabs being located on each side of said seal receiving aperture.

27. A sealing assembly according to claim 17, wherein

a third layer with a third thickness integrally coupled to said main layer as a one-piece, unitary member and overlapping a portion of said main layer to further increase overall thickness of said seal retainer.

28. A sealing assembly according to claim 27, wherein

said second and third layers lie on opposite sides of said main layer.

29. A sealing assembly according to claim 27, wherein

said second layer includes a pair of first tabs with one of said first tabs being located on each of said seal receiving aperture;

and

said third layer includes a pair of second tabs with one of said second tabs being located on each side of said seal receiving aperture.

30. A sealing assembly according to claim 27, wherein

said main layer has a plurality of said retaining elements with free ends adapted to engage the at least one seal.

31. A seal retainer according to claim 17, wherein

said second layer is spaced from said at least one seal receiving aperture along said plane of said main layer.

32. A sealing assembly for creating a seal between first and second members, comprising:

at least one annular seal with first and second longitudinally facing sealing surfaces and an outwardly facing cavity located between said first and second longitudinally facing sealing surfaces; and

a seal retainer including a main layer having a first thickness with at least one seal receiving aperture formed therein, at least one resilient retaining element internally formed with said main layer for engaging said cavity of said at least one seal to retain said at least one seal thereto, and a second layer having a second thickness integrally coupled to said main layer as a one-piece, unitary member and overlapping a portion of said main layer which increases overall thickness of said seal retainer,

said main layer, said second layer and said at least one retaining element being constructed of a thin material having a thickness ranging of approximately 0.003 inch to approximately 0.005 inch.