Back to results
US 10,456,896 B2Granted
Compact pulley puller
OwnerRoy McGriffinventor
Life of this patent
Estimating the term…
Abstract
A compact pulley puller includes a hollow cylindrical barrel with a gland at each end, a hub clamp formed on each gland, a rod and a piston. Each hub clamp grips a particular size hub of a pulley to be removed or installed. The rod of the puller extends against the shaft of a pulley to remove the pulley. To install a pulley, the rod is threadedly secured to the shaft of the pulley, and the rod of the puller is retracted.
Claims20
A compact pulley puller comprising
- a cylinder having a first end, a second end opposite the first end, a hollow interior, and an internal diameter;
- a piston having a circular periphery, a piston diameter that is less than the internal diameter of the hollow cylinder, a first piston side and a second piston side opposite the first piston side, the first piston side being between the second piston side and the first end of the cylinder, and the second piston side being between the first piston side and the second end of the cylinder, and the piston being disposed and moveable lineraly within the hollow interior of the cylinder;
- and a seal at the circular periphery of the piston and extending to the cylinder;
- a first gland at the first end of the cylinder, the first gland having an exterior side, an interior side opposite the exterior side, and a first central aperture, the first central aperture being concentric with the cylinder;
- a second gland at the second end of the cylinder, the second gland having an exterior side, an interior side opposite the exterior side, and a second central aperture, the second central aperture being concentric with the cylinder;
- a plurality of ports in the cylinder extending to the hollow interior of the cylinder, including a first port adjacent to the first gland, and a second port adjacent to the second gland;
- a rod having a first end and a second end opposite the first end, a first half and a second half, the first half of the rod projecting from the first piston side and the second half of the rod projecting from the second piston side, and the first end of the rod extending through the first central aperture of the first gland, and the second end of the rod extending through the second central aperture of the second gland, the rod being concentric with the cylinder;
- and
- a first hub clamp attached to the exterior side of the first gland, the first hub clamp including a first sleeve having a proximal end attached to the exterior side of the first gland and a distal end opposite the proximal end, the first sleeve being concentric with the first central aperture, a first flange at the distal end of the sleeve, the first flange having a proximal side and a distal side opposite the proximal side of the first flange, the proximal side of the first flange being between the distal side of the first flange and the exterior side of the first gland, and a first sleeve aperture extending through a portion of the first sleeve, and a first flange aperture extending through a portion of the first flange in alignment with the first sleeve aperture, and the first end of the rod being linearly movable between the exterior side of the first gland and the distal side of first flange of the first hub clamp.
6 more elements
A grease actuated pulley puller comprising
- a cylinder having a first end, a second end opposite the first end, a hollow interior, and an internal diameter;
- a piston having a circular periphery, a piston diameter that is less than the internal diameter of the hollow cylinder, a first piston side and a second piston side opposite the first piston side, the first piston side being between the second piston side and the first end of the cylinder, and the second piston side being between the first piston side and the second end of the cylinder, and the piston being disposed and moveable lineraly within the hollow interior of the cylinder;
- and a seal at the circular periphery of the piston and extending to the cylinder;
- a first gland at the first end of the cylinder, the first gland having an exterior side, an interior side opposite the exterior side, and a first central aperture, the first central aperture being concentric with the cylinder;
- a second gland at the second end of the cylinder, the second gland having an exterior side, an interior side opposite the exterior side, and a second central aperture, the second central aperture being concentric with the cylinder;
- a plurality of ports in the cylinder extending to the hollow interior of the cylinder, including a first port adjacent to the first gland, and a second port adjacent to the second gland, and the first port admitting grease into the hollow interior between the first piston side and the first gland thereby forcing the piston towards the second gland;
- a rod having a first end and a second end opposite the first end, a first half and a second half, the first half of the rod projecting from the first piston side and the second half of the rod projecting from the second piston side, and the first end of the rod extending through the first central aperture of the first gland, and the second end of the rod extending through the second central aperture of the second gland, the rod being concentric with the cylinder;
- and
- a first hub clamp attached to the exterior side of the first gland, the first hub clamp including a first sleeve having a proximal end attached to the exterior side of the first gland and a distal end opposite the proximal end, the first sleeve being concentric with the first central aperture, a first flange at the distal end of the sleeve, the first flange having a proximal side and a distal side opposite the proximal side of the first flange, the proximal side of the first flange being between the distal side of the first flange and the exterior side of the first gland, and a first sleeve aperture extending through a portion of the first sleeve, and a first flange aperture extending through a portion of the first flange in alignment with the first sleeve aperture, and the first end of the rod being linearly movable between the exterior side of the first gland and the distal side of first flange of the first hub clamp.
6 more elements
A grease actuated pulley puller comprising
- a cylinder having a first end, a second end opposite the first end, a hollow interior, and an internal diameter;
- a piston having a circular periphery, a piston diameter that is less than the internal diameter of the hollow cylinder, a first piston side and a second piston side opposite the first piston side, the first piston side being between the second piston side and the first end of the cylinder, and the second piston side being between the first piston side and the second end of the cylinder, and the piston being disposed and moveable lineraly within the hollow interior of the cylinder;
- and a seal at the circular periphery of the piston and extending to the cylinder;
- a first gland at the first end of the cylinder, the first gland having an exterior side, an interior side opposite the exterior side, and a first central aperture, the first central aperture being concentric with the cylinder;
- a second gland at the second end of the cylinder, the second gland having an exterior side, an interior side opposite the exterior side, and a second central aperture, the second central aperture being concentric with the cylinder;
- a plurality of ports in the cylinder extending to the hollow interior of the cylinder, including a first port adjacent to the first gland, and a second port adjacent to the second gland, and the first port admitting grease into the hollow interior between the first piston side and the first gland thereby forcing the piston towards the second gland;
- a rod having a first end and a second end opposite the first end, a first half and a second half, the first half of the rod projecting from the first piston side and the second half of the rod projecting from the second piston side, and the first end of the rod extending through the first central aperture of the first gland, and the second end of the rod extending through the second central aperture of the second gland, the rod being concentric with the cylinder;
- a first hub clamp attached to the exterior side of the first gland;
- a first grease fitting attached to the first port;
- and
- a grease gun coupled to the first grease fitting.
8 more elements
Dependencies are inferred from the claim text.