Intrascopic hydraulic cylinder
AssigneeFlip Screen Australia Pty Ltd
InventorSam Turnbull
Life of this patent
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Abstract
A hydraulic cylinder (1) which acts as a cylinder hollow rod in an outer hydraulic cylinder (10) is disclosed comprising an inner rod (4) with a piston (2) and piston-gland (3) wherein the cylinder hollow rod (1) is held longitudinally displaceably in the cylinder housing (10). The system additionally has a cylinder base (5) and a fibre cover (14) on the outer casing of hydraulic cylinder (10). The system also has ports for fluid (11, 12 and 13) corresponding to four chambers, (67, 8 and 9 respectively). According to the invention, when pressure is applied to chamber (7), the internal rod (4) extends into the chamber (6), displacing its mass and dramatically increases the pressure in Chamber (6). This displacement is effectively an internal pump which can be activated multiple times within a given stroke of rod (1).
Claims25
A hydraulic cylinder assembly comprising:
- an outer cylindrical housing;
- and
- an inverted hydraulic cylinder inside the outer cylindrical housing, wherein the inverted hydraulic cylinder is smaller than the outer cylindrical housing and functions as a piston-rod assembly held longitudinally displaceably within the outer cylindrical housing, and wherein the inverted hydraulic cylinder comprises a cylindrical hollow rod containing a piston, a piston-gland and an inner rod,
- wherein the cylindrical hollow rod has a further hollow rod affixed in the piston-gland, wherein the inner rod of the cylindrical hollow rod extends and retracts by sliding within the further hollow rod.
A hydraulic cylinder assembly comprising:
- an outer cylindrical housing;
- and
- an inverted smaller hydraulic cylinder inside the outer cylindrical housing which acts like a piston-rod assembly held longitudinally displaceably within the outer cylindrical housing, wherein the inverted smaller hydraulic cylinder comprises a cylindrical hollow rod containing a piston, a piston-gland and an inner rod, and
- wherein the cylindrical hollow rod has a further hollow rod affixed in the piston-gland, wherein the inner rod of the cylindrical hollow rod extends and retracts by sliding within the further hollow rod.
Dependencies are inferred from the claim text.