Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
287 words
A two element compression seal assembly comprising: an endless relatively soft annular spring element of yieldable material with memory and having a solid generally rectangular cross-sectional configuration with an annular projection extending toward the other element, an annular shoulder being disposed on each side of the projection; an endless annular sealing element comprising a body of relatively hard wear resistant synthetic resinous material having a generally U-shaped cross-sectional configuration with the base comprising the U thereof contiguously receiving said annular projection; said sealing element further comprising spaced radially directed anti-extrusion legs, the length of said legs being substantially the same as the distance the annular projection extends into the U of the sealing element in mating fully contiguous relation, the sealing element further comprising annular shoulders on each side of the U each shoulder being fully contiguously engaged by the adjacent spring element shoulder, the interface between the two elements being fully contiguous and comprising a force resistant flex site across which fluid is prevented from flowing, the spring element extending a short distance radially beyond the legs to compressively engage and accommodate creation of a static seal against substantially the entire surface area of the base of a groove in a first machine part; said sealing element further comprising a delta-shaped projection having a central apex extending radially away from said anti-extrusion legs and adapted to extend beyond said machine groove and compressively engage the surface of a second machine part causing said apex to be slightly flattened and to create a dynamic annular line seal along the entirety of the 360 degrees of said slightly flattened apex, the width of the line seal being substantially less than the width of either of the two elements.
Claim 2
Dependent Claim
287 words
A two element compression seal assembly comprising: an endless relatively soft annular spring element of yieldable material with memory and having a solid generally rectangular cross-sectional configuration with an annular projection extending toward the other element, an annular shoulder being disposed on each side of the projection; an endless annular sealing element comprising a body of relatively hard wear resistant synthetic resinous material having a generally U-shaped cross-sectional configuration with the base comprising the U thereof contiguously receiving said annular projection; said sealing element further comprising spaced radially directed anti-extrusion legs, the length of said legs being substantially the same as the distance the annular projection extends into the U of the sealing element in mating fully contiguous relation, the sealing element further comprising annular shoulders on each side of the U each shoulder being fully contiguously engaged by the adjacent spring element shoulder, the interface between the two elements being fully contiguous and comprising a force resistant flex site across which fluid is prevented from flowing, the spring element extending a short distance radially beyond the legs to compressively engage and accommodate creation of a static seal against substantially the entire surface area of the base of a groove in a first machine part; said sealing element further comprising a delta-shaped projection having a central apex extending radially away from said anti-extrusion legs and adapted to extend beyond said machine groove and compressively engage the surface of a second machine part causing said apex to be slightly flattened and to create a dynamic annular line seal along the entirety of the 360 degrees of said slightly flattened apex, the width of the line seal being substantially less than the width of either of the two elements.
Claim 3
Dependent Claim
78 words
A two element compression seal assembly according to claim 1 wherein an anti-extrusion seal is created between compressive engagement of the aligned exterior radial surfaces of one of said legs and the side of the spring element with a sidewall of said groove responsive to pressure imposed upon the opposite side of said seal assembly comprising the exterior radial surfaces of the other of said two legs and the other side of the side of the spring element.
Claim 4
Dependent Claim
28 words
A two element compression seal assembly according to claim 1 wherein said delta-shaped projection is interposed between two circumferential shoulders which extend beyond the limits of said groove.
Claim 5
Dependent Claim
24 words
A two element compression seal assembly according to claim 3 further comprising a heel connected to but disposed substantially perpendicular to each said shoulder.
Claim 6
Dependent Claim
17 words
A two element compression seal assembly according to claim 1 wherein said delta-shaped projection extends radially outwardly.
Claim 7
Dependent Claim
16 words
A two element compression seal assembly according to claim 1 wherein said delta-shaped projection extends inwardly.
Claim 8
Dependent Claim
120 words
A two element compression seal assembly comprising: an endless relatively soft annular spring element of yieldable material with memory and comprising an annular tongue flanked by an annular flat shoulder on each side of the annular tongue and an annular flat base radially spaced from the tongue; a one piece endless annular sealing element of relatively hard synthetic resinous material having a generally U-shaped cross-sectional configuration comprising (a) a pair of radially directed anti-extrusion legs fully contiguously straddling the annular tongue of the spring element and fully contiguously engaging the shoulder of the spring element and (b) an oppositely radially directed delta-shaped annular exposed dynamic sealing ridge comprising an apex and opposed bevelled surfaces sloped oppositely away from the apex.
Claim 9
Dependent Claim
120 words
A two element compression seal assembly comprising: an endless relatively soft annular spring element of yieldable material with memory and comprising an annular tongue flanked by an annular flat shoulder on each side of the annular tongue and an annular flat base radially spaced from the tongue; a one piece endless annular sealing element of relatively hard synthetic resinous material having a generally U-shaped cross-sectional configuration comprising (a) a pair of radially directed anti-extrusion legs fully contiguously straddling the annular tongue of the spring element and fully contiguously engaging the shoulder of the spring element and (b) an oppositely radially directed delta-shaped annular exposed dynamic sealing ridge comprising an apex and opposed bevelled surfaces sloped oppositely away from the apex.