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US 11,655,014 B2Granted
Boat shaft seal system
AssigneeJohnson Propeller Company
InventorsEric Johnson, Clint Brown
Life of this patent
Estimating the term…
Abstract
A boat shaft seal system including a flexing gland configured to receive a boat drive shaft therethrough, the flexing gland having a first end configured to receive a shaft log fitting, and a second end configured such that the boat drive shaft extends therefrom, and a plurality of circumferential ribs formed along at least a portion of a length of the flexing gland and configured to allow limited flexing of the flexing gland.
Claims16
A boat shaft seal system, comprising:
- a flexing gland configured to receive a boat drive shaft therethrough, the flexing gland having a first end configured to receive a shaft log fitting, and a second end configured such that the boat drive shaft extends therefrom;
- a plurality of circumferential ribs formed along at least a portion of a length of the flexing gland and configured to allow limited flexing of the flexing gland;
- a rotary bearing provided in the second end of the flexing gland and configured to allow rotary movement of the boat drive shaft within the flexing gland;
- an adapter fitted inside the second end of the flexing gland and configured to hold the rotary bearing, wherein the adapter is formed with a flange to support a first end of the rotary bearing;
- and
- a securing member configured to contact a second end of the rotary bearing to secure the rotary bearing in the adapter, wherein a recess is formed in an inner diameter of the adapter to receive the securing member such that the rotary bearing is secured in place in the adapter.
3 more elements
A boat shaft seal system, comprising:
- a flexing gland having a first end configured to be coupled to the shaft log of a boat hull over a boat drive shaft, and a second end configured such that the boat drive shaft passes therethrough;
- one or more circumferential ribs formed along at least a portion of the flexing gland and configured to allow limited flexing of the flexing gland;
- a plurality of structural rings provided on either side of each of the one or more circumferential ribs;
- a rotary bearing having an internal race configured fit the boat drive shaft and allow rotary movement of the boat drive shaft;
- an adapter arranged in the second end of the flexing gland such that an outer diameter of the adapter contacts an inner diameter of the flexing gland, and configured such that an inner diameter of the adapter contacts an outer diameter of the rotary bearing;
- a securing member configured to contact a second end of the rotary bearing to secure the rotary bearing in the adapter, wherein a recess is formed in an inner diameter of the adapter to receive the securing member such that the rotary bearing is secured in place in the adapter;
- and
- a tension member provided proximate the second end of the flexing gland and configured to contact an outer diameter of the second end of the flexing gland so as to secure the adapter in position.
5 more elements
Dependencies are inferred from the claim text.