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US 6,814,637 B1Granted
Marine, inboard, through-hull propeller drive
OwnerManfred W. Quaeckinventor
Life of this patent
Estimating the term…
Abstract
The propeller drive is installed with its drive shaft inside a boat hull and it's driven (propeller) shaft outside. The shafts are interconnected by a silent chain. The drive shaft position is adjustable to adjust the distance between it and the driven shaft, thus adjusting tension in the chain. The drive shaft is carried in two bearings which are installed eccentrically in two bearing carriers. The bearing carriers are rotatably mounted in a casing and are structurally interconnected by a connector. The adjustments are made by rotational adjustment of the connector relative to the casing.
Claims7
A through-hull inboard propeller drive comprising:
- A casing having an upper end and a lower end, upper end apparatus and lower end apparatus, said upper end apparatus being assembled on said upper end, said lower end apparatus being assembled on said lower end,
- said drive further comprising a silent chain
- said upper end apparatus comprising:
- a drive shaft
- a drive sprocket
- a first and second bearing
- first and second bearing carriers
- first and second ends of said upper apparatus, each having a centric bore
- said silent chain located between said first and second bearing carriers,
- said drive sprocket being mounted on said drive shaft, said drive shaft and drive sprocket being carried at said upper end, in said first and second bearing
- said lower end apparatus comprising:
- a driven shaft
- third and fourth bearing
- a driven sprocket
- said driven sprocket being mounted on said driven shaft, said driven shaft and driven sprocket being carried in said lower apparatus, on said third and fourth bearing, said silent chain interconnecting said drive and driven sprockets, said drive and driven shafts and sprockets being a distance apart and parallel, said upper end apparatus further comprising a device for adjustment of said distance, said drive shaft being constrained by said bearing carriers mounted in said centric bores to remain parallel during said adjustment of said distance and being parallel when said adjustment is complete.
12 more elements
Dependencies are inferred from the claim text.