# Patent

## Title
Beaded tube coupling with end seal ring

## Abstract

Although there has been described hereinabove a specific rotary/reciprocating seal apparatus in accordance with the present invention for the purpose of illustrating the manner in which the invention may be used to advantage, it should be appreciated that the invention is not limited thereto. According, any and all modifications, variations or equivalent arrangements, which may occur to those skilled in the art, should be considered to be within the scope of the invention as defined in the appended claims.

## Background
## Claims

1. Rotary/reciprocating seal apparatus comprising: therein, said circumferential groove including a first surface of revolution disposed at an angle with the axis of said ring member, said resilient member including means defining an axial opening therein sized for accepting and enabling a shaft to be rotated and/or reciprocated therein; accommodate said ring member, said cylindrical housing including means defining a groove in an inside surface of said cylindrical housing, the inside surface groove including a second surface of revolution disposed at an angle with the axis of said cylindrical housing; grooves for forcing said first and second surfaces of revolution away from one another to cause an axial loading between the ring member and the cylindrical housing; and, with said spring means, for urging portions of the ring member against the shaft and the cylindrical housing inside surface, respectively, in order to create a seal therebetween.

2. The rotary/reciprocating seal apparatus according to claim 1 wherein the first and second surfaces of revolution are approximately parallel with one another.

3. The rotary/reciprocating seal apparatus according to claim 1 wherein said circumferential groove further comprises a third surface of revolution disposed at an angle with the axis of the cylindrical housing and facing said second surface of revolution, the inside surface groove being sized for enabling the ring member and the cylindrical housing to be separated from one another by relative movement thereof causing either said first or third surface of revolution to compress the spring means into the inside surface groove allowing the cylindrical housing to move therepast.

4. Rotary/reciprocating seal apparatus comprising: circumferential groove therein, said circumferential grooves, each including a first surface of revolution disposed at an angle with the axis of said ring member, said resilient ring member including means defining an axial opening therein sized for accepting and enabling a shaft to be rotated and/or reciprocated therein; accommodate said ring member, said cylindrical housing including means defining a first and a second groove in an inside surface of said cylindrical housing, each inside surface groove including a second surface of revolution disposed at an angle with the axis of said cylindrical housing; both the ring member and cylindrical housing, first and second grooves, respectively, for preventing rotating of the ring member as the shaft is rotated; and member against the shaft and the cylindrical housing inside surface, respectively, in order to create a seal therebetween.

5. The rotary/reciprocating seal apparatus according to claim 4 wherein the first and second ellipsoidal springs comprises first and second coils, respectively, disposed in a canted relationship with an axis of the ring member, the first coils being canted in one direction and the second coil being canted in an opposite direction.

6. Rotary/reciprocating seal apparatus comprising: said circumferential groove including a first surface of revolution disposed at an angle with the axis of said ring member, said resilient ring member including means defining an axial opening therein sized for accepting and enabling a shaft to be rotated and/or reciprocated therein; to accommodate said ring member, said cylindrical housing including means defining a groove in an inside surface of said cylindrical housing, the inside surface groove including a second surface of revolution disposed at an angle with the axis of said cylindrical housing; grooves for forcing said first and second surfaces of revolution away from one another to cause an axial loading between the ring member and cylindrical housing member against the shaft and the cylindrical housing member inside surface, respectively, in order to create a seal therebetween; and cylindrical housing by movement of the first and second surfaces of revolution away from one another, said locking means comprising a first locking surface in said circumferential groove disposed in a plane approximately perpendicular to the axis of the cylindrical housing and a second locking surface in the inside surface groove disposed in a plane approximately perpendicular to the axis of the cylindrical housing.

7. The rotary/reciprocating seal apparatus according to claim 6 wherein the inside surface groove is sized for enabling the ring member cylindrical housing to be separated from one another by movement of the first and second surfaces of revolution toward one another causing said first surface of revolution to compress the first spring means into the inside surface groove allowing the ring member to move therepast.

8. Rotary/reciprocating seal apparatus comprising: having a shoulder and a first loading surface, said shoulder comprising a first locking surface disposed in a plane approximately perpendicular to the axis of the first cylindrical member, said first loading surface comprising a first surface of revolution disposed at an angle to the first cylindrical member axis, said resilient ring member including means defining an axial opening therein sized for accepting and enabling a shaft to be rotated and/or reciprocated therein; sized to accommodate said ring member, said cylindrical housing including means defining a groove in an inside surface of said cylindrical housing, the inside surface groove having a second loading surface disposed in a plane approximately perpendicular to the axis of the cylindrical housing, and a second locking surface comprising a second surface of revolution disposed at an angle to the cylindrical housing axis; and, surface groove for forcing said first and second loading surface away from one another to cause an axial loading between ring member and the cylindrical housing, said first and second locking surfaces preventing the axially loaded first and second cylindrical members from separating from one another by engaging said spring means; and member against the shaft and the cylindrical housing inside surface in order to create a seal therebetween.

9. The rotary/reciprocating seal apparatus according to claim 8 wherein the first and second surface of revolution are approximately parallel with one another.

10. The rotary/reciprocating seal apparatus according to claim 8 wherein said spring means comprises a continuous ellipsoidal coil spring.

11. The rotary/reciprocating seal apparatus according to claim 8 wherein said spring means comprises two continuous ellipsoidal coil springs, each having elliptically shaped coils.

12. The rotary/reciprocating seal apparatus according to claim 11 wherein said elliptically shaped coils are disposed in a canted relationship with an axis of the ring member, one of the elliptically shaped coils being canted in one direction and the other elliptically shaped coil being canted in an opposite direction.

13. The rotary/reciprocating seal apparatus according to claim 11 wherein the ellipsoidal shaped coil spring is disposed in the circumferential groove and the inside surface groove with major axis of the elliptically shaped coils approximately parallel to the first and second surfaces of revolution.

14. The rotary/reciprocating seal apparatus according to claim 12 wherein said first locking surface engages said elliptically shaped coil spring at a point thereon between the elliptically shaped coils' major axis and the second surface of revolution.

15. The rotary/reciprocating seal apparatus according to claim 14 wherein said shoulder further comprises ramp means for enabling assembly of the mechanism, said ramp means compressing said ellipsoidal spring as the ring member is pushed into the cylindrical housing axial opening.