Sealing device for a pump
AssigneeWalrus Pump Co., Ltd.
InventorSHOU-HSIUNG HUANG
Life of this patent
Estimating the term…
Abstract
A sealing device for a pump has a sleeve, a rotary collar, a first O-ring, a stationary collar, a mounting bracket, a second O-ring, a mounting collar and a locking pin. The rotary collar, stationary collar, mounting bracket and mounting collar are mounted around the sleeve. The first O-ring is mounted between the sleeve and the rotary collar. The second O-ring is mounted between the mounting bracket and the stationary collar. The locking pin is mounted securely between the mounting bracket and the stationary collar. The O-rings provide multi-sealing functions. The locking pin prevents relative rotation between the mounting bracket and stationary collar.
Claims10
A sealing device for a pump comprising:
- a sleeve having a top end and a bottom end and further having
- a shaft hole defined longitudinally through the sleeve and having an inner surface;
- and
- an annular flange mounted around the sleeve and having a top edge and an annular slot defined between the sleeve and the annular flange and having an open top adjacent to the top edge of the annular flange;
- a rotary collar mounted un-rotatably and slidably around the sleeve and having a bottom end and a mounting hole defined axially through the rotary collar, mounted around the sleeve and having an inner surface;
- a first O-ring mounted water-tightly between the sleeve and the rotary collar;
- a stationary collar mounted rotatably on the sleeve above the rotary collar, rotatably contacting the rotary collar and having a top end, a bottom end and a collar hole defined axially through the stationary collar and mounted around the sleeve;
- a mounting bracket mounted rotatably around the sleeve above the stationary collar and having a through hole through the mounting bracket and mounted around the sleeve;
- a second O-ring mounted between the mounting bracket and the stationary collar;
- a mounting collar mounted around the sleeve above the mounting bracket and preventing the rotary collar, stationary collar and mounting bracket from falling off;
- and
- a locking pin mounted securely between the stationary collar and the mounting bracket to prevent relative rotation between the stationary collar and the mounting bracket.
Dependencies are inferred from the claim text.