System for using O-rings to apply holding forces

Patent metadata

Field	Value
Publication number	US-11145496-B2
Application number	US-201815991328-A
Country	US
Kind code	B2
Filing date	May 29, 2018
Priority date	May 29, 2018
Publication date	Oct 12, 2021
Grant date	Oct 12, 2021

Abstract

A fastening system for attaching two components with a spring force is disclosed. The fastening system utilizes O-rings to provide the spring force, eliminating the need for any metal components. The O-ring may be disposed in an O-ring holder that has a plurality of spokes. When compressed, indentations are created in the O-ring by the spokes. The number of spokes and their size and shape determine the spring force of the fastening system. In another embodiment, vertically oriented O-rings are utilized. The fastening system may be used to fasten various components of an ion source.

First claim

What is claimed is:

1. A fastening system for fastening a first component to a second component, comprising:
a pin, having a head and a body;
a latch having a flange and a center opening dimensioned so that the body of the pin passes therethrough;
an O-ring holder having a circular recess with a bottom, an inner sidewall and an outer sidewall, wherein the O-ring holder is separate from and disposed on the second component; and
a O-ring, where the O-ring is disposed in the circular recess and contacts an underside of the latch and the O-ring holder and wherein the flange extends downward and covers the O-ring and at least a portion of the outer sidewall of the O-ring holder.

2. The fastening system of claim 1 , wherein the pin comprises a groove disposed along the body, where the center opening is dimensioned so that the latch is locked in the groove when rotated by a quarter turn.

3. The fastening system of claim 2 , wherein the O-ring is compressed when the latch is locked in the groove.

4. The fastening system of claim 1 , wherein the O-ring holder comprises a plurality of spokes, extending upward from the bottom of the circular recess, the plurality of spokes contacting a bottom surface of the O-ring.

5. The fastening system of claim 4 , wherein each of the plurality of spokes attach to the inner sidewall and the outer sidewall.

6. The fastening system of claim 4 , wherein each of the plurality of spokes comprises a free end, distal from the bottom, and wherein the free end of each of the plurality of spokes is tapered.

7. The fastening system of claim 4 , wherein each of the plurality of spokes comprises a free end, distal from the bottom, and wherein the free end of each of the plurality of spokes is flat.

8. The fastening system of claim 4 , wherein each of the plurality of spokes is spaced apart from an adjacent spoke by an angle of 360°/N, where N is a number of spokes.

9. The fastening system of claim 8 , wherein N is between 3 and 8.

10. A fastening system for fastening a first component to a second component, comprising:
a pin, having a head and a body;
a latch having a center opening dimensioned so that the body of the pin passes therethrough;
an O-ring holder having a plurality of vertical slots; and
a plurality of O-rings, where each of the plurality of O-rings is disposed in a respective vertical slot, and contacts an underside of the latch.

11. The fastening system of claim 10 , wherein the pin comprises a groove disposed along the body, where the center opening is dimensioned so that the latch is locked in the groove when rotated by a quarter turn.

12. The fastening system of claim 11 , wherein each of the plurality of O-rings is compressed when the latch is locked in the groove.

13. The fastening system of claim 10 , wherein each of the plurality of vertical slots is spaced apart from an adjacent vertical slot by an angle of 360°/N, where N is a number of vertical slots.

14. The fastening system of claim 13 , wherein N is between 3 and 8.

15. An extraction plate assembly for use with an ion source, comprising:
an extraction plate having an extraction aperture;
and a hole proximate the extraction aperture;
a blocker, having an opening; and
a fastening system, comprising:
a pin, having a head and a body, passing through the hole and the opening;
a latch having a flange and a center opening dimensioned so that the body of the pin passes therethrough;
an O-ring holder; and
an O-ring, wherein the O-ring is disposed in the O-ring holder and contacts an underside of the latch and wherein the flange extends downward and covers the O-ring and at least a portion of the O-ring holder.

16. The extraction plate assembly of claim 15 , wherein the O-ring holder is disposed against the blocker.

17. The extraction plate assembly of claim 15 , wherein the O-ring holder comprises a circular recess with a bottom, an inner sidewall and an outer sidewall; and the O-ring is disposed in the circular recess.

18. The extraction plate assembly of claim 17 , wherein the O-ring holder comprises a plurality of spokes, extending upward from the bottom of the circular recess, the plurality of spokes contacting a bottom surface of the O-ring.

19. The extraction plate assembly of claim 15 , wherein the O-ring holder comprises a plurality of vertical slots; and a plurality of O-rings, where each of the plurality of O-rings is disposed in a respective vertical slot.

Assignees

• Varian Semiconductor Equipment Ass Inc

Inventors

• Mcgillicudy Daniel
• Buonodono James P

Classifications

• H01J37/32889 Primary

  Connection or combination with other apparatus · CPC title

• Y10T292/62

  Bolt casings · CPC title

• E05C5/04

  performing both movements simultaneously, e.g. screwing into a keeper · CPC title

• Y10T292/0864

  Combined motion · CPC title

• F16B2/06

  external, i.e. with contracting action (F16B2/14 - F16B2/18 take precedence) · CPC title