Patent ID: 8821140

Claim:
A gear pump, comprising: a pump housing having opposite ends; a gear disposed within said pump housing, said gear having opposed and outwardly facing first and second ends, said first end having a first gear end seal mount, and said second end having a second gear end seal mount; first and second end plates sealingly joined to said opposite ends of said pump housing, said first end plate having a first shaft passage to receive a pump shaft therethrough and a first seal disc mount on an inner side of said first end plate coaxial with said first shaft passage, said second end plate having a second shaft passage to receive a pump shaft therethrough and a second seal disc mount on an inner side of said second end plate coaxial with said second shaft passage; a first seal disc mounted to said first seal disc mount; a second seal disc mounted to said second seal disc mount; a pump shaft having a first shaft end extending through said first shaft passage and said first seal disc, and a second shaft end extending through said second shaft passage and said second seal disc, and wherein said gear is fixedly joined to said pump shaft for rotation therewith; a first gear end seal mounted to said first gear end seal mount and forming a sealing contact between an inner facing side said first seal disc and said first outwardly facing end; and a second gear end seal mounted to said second gear end seal mount and forming a sealing contact between an inner facing said second seal disc and said second outwardly facing end.