Patent ID: 7665480

Claim:
A device for producing or conveying fluids under pressure comprising: a.) a housing having a housing exterior, cap abutment surface, a chamber and a bore opening, said cap abutment surface comprising an area of the housing separate from said exterior surrounding said bore opening for receiving a cap, said chamber for containing fluid under pressure and said bore opening extending from said cap abutment surface to said chamber and having a sealing surface and at least one housing seal compression surface; b. a seal held in said bore opening, said seal having a seal opening and a housing engagement surface, said seal opening for receiving a shaft extending axially there-through, said seal sealing engaging said housing engagement surface against said sealing surface upon axial compression of the seal against said seal compression surface; c.) a shaft having a shaft axis and mounted in the seal opening of said seal for rotation about said shaft axis or movement along a shaft axis; d.) a cap having a cap exterior, housing abutment surface, a cap opening and a cap seal compression surface, said cap affixed to said housing with said housing abutment surface engaging said cap abutment surface and said shaft extending through said cap opening and said cap seal compression surface pressed against said seal compelling said seal against said seal compression surface to sealing engage said housing engagement surface against said sealing surface; and, e.) passage means for receiving and conveying fluid from said housing engagement surface to at least one of said cap exterior or said housing exterior and away from said cap abutment surface and said housing abutment surface.