Sealing means

Claim 2

A sealing ring combination having two ring elements, a first of the said two ring elements being a unitary resilient C-ring and a second of the said two ring elements being a unitary resilient W-ring

Claim 3

THE C-ring having the following characteristics (a) and (b): A. A CENTRAL AXIS ABOUT WHICH IT IS GENERATED B. MATERIAL OF UNIFORM THICKNESS AS SEEN IN RADIAL CROSS SECTION AND FORMED TO PROVIDE A CHANNEL HAVING I. A ROUNDED RADIALLY OUTERMOST PERIPHERAL PORTION FURTHEST FROM THE CENTRAL AXIS AND FORMING A ROUNDED BASE OF A CHANNEL II. A PAIR OF RADIALLY INWARDLY DIRECTED ANNULAR SIDE WALLS HAVING EACH A PORTION LYING GENERALLY TRANSVERSE TO THE CENTRAL AXIS AND OFFERING FREE LIPS NEAREST TO THE CENTRAL AXIS AND AXIALLY MUTUALLY SPACED APART WHEREBY TO DEFINE A CHANNEL OPENING TO THE CENTRAL AXIS AND HAVING THE SAID ROUNDED BASE AND WITH SIDE WALLS RESILIENTLY MOVABLE IN AXIAL DIRECTIONS AGAINST DEFORMATION OF THE CHANNEL

Claim 4

THE C-ring having the following characteristics (a) and (b): A. A CENTRAL AXIS ABOUT WHICH IT IS GENERATED B. MATERIAL OF UNIFORM THICKNESS AS SEEN IN RADIAL CROSS SECTION AND FORMED TO PROVIDE A CHANNEL HAVING I. A ROUNDED RADIALLY OUTERMOST PERIPHERAL PORTION FURTHEST FROM THE CENTRAL AXIS AND FORMING A ROUNDED BASE OF A CHANNEL II. A PAIR OF RADIALLY INWARDLY DIRECTED ANNULAR SIDE WALLS HAVING EACH A PORTION LYING GENERALLY TRANSVERSE TO THE CENTRAL AXIS AND OFFERING FREE LIPS NEAREST TO THE CENTRAL AXIS AND AXIALLY MUTUALLY SPACED APART WHEREBY TO DEFINE A CHANNEL OPENING TO THE CENTRAL AXIS AND HAVING THE SAID ROUNDED BASE AND WITH SIDE WALLS RESILIENTLY MOVABLE IN AXIAL DIRECTIONS AGAINST DEFORMATION OF THE CHANNEL

Claim 5

THE W-ring having the following characteristics (c) and (d); C. A CENTRAL AXIS ABOUT WHICH IT IS GENERATED, D. MATERIAL OF UNIFORM THICKNESS AS SEEN IN RADIAL CROSS SECTION AND FORMED TO PROVIDE I. TWO AXIALLY SPACED-APART AXIALLY OUTER ANNULAR FLANGES HAVING FREE EDGES AT THEIR RESPECTIVE RADIALLY OUTERMOST PERIPHERIES II. A RESILIENT CHANNEL AXIALLY BETWEEN THE SAID FLANGES AND HAVING A ROUNDED BASE AND TWO SIDE WALLS, III. ARCUATE-SECTION LINK PORTIONS JOINING THE SAID FLANGES RESPECTIVELY TO THE SAID SIDE WALLS OF THE CHANNEL AT THE RADIALLY INWARD PERIPHERIES OF THE FLANGES, IV. THE SAID FLANGES LYING GENERALLY TRANSVERSE TO THE CENTRAL AXIS AND ADAPTED TO LIE FACE TO FACE WITH THE SAID PORTIONS OF THE SIDE WALLS OF THE C-ring, v. the said channel being disposed with its base at a greater radial distance from the central axis than the said link portions 3. the combination having characteristics (e) and (f); e. that the central axes of the C-ring and the W-ring are coincident f. that the said flanges are juxtaposed face to face against respective said portions of the side walls of the channel of the C-ring whereby the W-ring acts as a compression spring within the channel of the C-ring and resiliently reinforces the resilience of the walls of the said channel against axially mutually inwardly directed forces.

Claim 6

THE W-ring having the following characteristics (c) and (d); C. A CENTRAL AXIS ABOUT WHICH IT IS GENERATED, D. MATERIAL OF UNIFORM THICKNESS AS SEEN IN RADIAL CROSS SECTION AND FORMED TO PROVIDE I. TWO AXIALLY SPACED-APART AXIALLY OUTER ANNULAR FLANGES HAVING FREE EDGES AT THEIR RESPECTIVE RADIALLY OUTERMOST PERIPHERIES II. A RESILIENT CHANNEL AXIALLY BETWEEN THE SAID FLANGES AND HAVING A ROUNDED BASE AND TWO SIDE WALLS, III. ARCUATE-SECTION LINK PORTIONS JOINING THE SAID FLANGES RESPECTIVELY TO THE SAID SIDE WALLS OF THE CHANNEL AT THE RADIALLY INWARD PERIPHERIES OF THE FLANGES, IV. THE SAID FLANGES LYING GENERALLY TRANSVERSE TO THE CENTRAL AXIS AND ADAPTED TO LIE FACE TO FACE WITH THE SAID PORTIONS OF THE SIDE WALLS OF THE C-ring, v. the said channel being disposed with its base at a greater radial distance from the central axis than the said link portions 3. the combination having characteristics (e) and (f); e. that the central axes of the C-ring and the W-ring are coincident f. that the said flanges are juxtaposed face to face against respective said portions of the side walls of the channel of the C-ring whereby the W-ring acts as a compression spring within the channel of the C-ring and resiliently reinforces the resilience of the walls of the said channel against axially mutually inwardly directed forces.

Claim 7

THE W-ring having the following characteristics (c) and (d); C. A CENTRAL AXIS ABOUT WHICH IT IS GENERATED, D. MATERIAL OF UNIFORM THICKNESS AS SEEN IN RADIAL CROSS SECTION AND FORMED TO PROVIDE I. TWO AXIALLY SPACED-APART AXIALLY OUTER ANNULAR FLANGES HAVING FREE EDGES AT THEIR RESPECTIVE RADIALLY OUTERMOST PERIPHERIES II. A RESILIENT CHANNEL AXIALLY BETWEEN THE SAID FLANGES AND HAVING A ROUNDED BASE AND TWO SIDE WALLS, III. ARCUATE-SECTION LINK PORTIONS JOINING THE SAID FLANGES RESPECTIVELY TO THE SAID SIDE WALLS OF THE CHANNEL AT THE RADIALLY INWARD PERIPHERIES OF THE FLANGES, IV. THE SAID FLANGES LYING GENERALLY TRANSVERSE TO THE CENTRAL AXIS AND ADAPTED TO LIE FACE TO FACE WITH THE SAID PORTIONS OF THE SIDE WALLS OF THE C-ring, v. the said channel being disposed with its base at a greater radial distance from the central axis than the said link portions

Claim 8

THE W-ring having the following characteristics (c) and (d); C. A CENTRAL AXIS ABOUT WHICH IT IS GENERATED, D. MATERIAL OF UNIFORM THICKNESS AS SEEN IN RADIAL CROSS SECTION AND FORMED TO PROVIDE I. TWO AXIALLY SPACED-APART AXIALLY OUTER ANNULAR FLANGES HAVING FREE EDGES AT THEIR RESPECTIVE RADIALLY OUTERMOST PERIPHERIES II. A RESILIENT CHANNEL AXIALLY BETWEEN THE SAID FLANGES AND HAVING A ROUNDED BASE AND TWO SIDE WALLS, III. ARCUATE-SECTION LINK PORTIONS JOINING THE SAID FLANGES RESPECTIVELY TO THE SAID SIDE WALLS OF THE CHANNEL AT THE RADIALLY INWARD PERIPHERIES OF THE FLANGES, IV. THE SAID FLANGES LYING GENERALLY TRANSVERSE TO THE CENTRAL AXIS AND ADAPTED TO LIE FACE TO FACE WITH THE SAID PORTIONS OF THE SIDE WALLS OF THE C-ring, v. the said channel being disposed with its base at a greater radial distance from the central axis than the said link portions

Claim 9

A sealing ring combination as claimed in claim 1 wherein th C-ring has the following additional characteristics (g) and (h): g. a pair of first frusto conical side wall portions diverging axially at an angle from each other and merging at their axially mutually closest ends with the rounded outermost peripheral portion of the ring h. a pair of second frusto conical side wall portions, forming the said portions of the side walls lying transverse to the central axis, diverging axially at an angle from each other and merging at their axially mutually closest ends with the respective first frusto conical portions, the said lips being at the radially innermost edges of the said second frusto conical portions, the angle of divergence of the second pair of frusto conical portions being less than that of the first pair, and the W-ring has the additional characteristic (j): j. that the said flanges are frusto conical and are axially divergent at an angle equal to the angle of divergence of the said second frusto conical side wall portions of the C-ring.

Claim 10

the combination having characteristics (e) and (f); e. that the central axes of the C-ring and the W-ring are coincident f. that the said flanges are juxtaposed face to face against respective said portions of the side walls of the channel of the C-ring whereby the W-ring acts as a compression spring within the channel of the C-ring and resiliently reinforces the resilience of the walls of the said channel against axially mutually inwardly directed forces.

Claim 11

the combination having characteristics (e) and (f); e. that the central axes of the C-ring and the W-ring are coincident f. that the said flanges are juxtaposed face to face against respective said portions of the side walls of the channel of the C-ring whereby the W-ring acts as a compression spring within the channel of the C-ring and resiliently reinforces the resilience of the walls of the said channel against axially mutually inwardly directed forces.