US 5,105,753 AGranted

Multi-purpose underwater propelling device

OwnerLiu P. Chih, Jack Hwanginventors

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Abstract

A multi-purpose aquatic propulsion device that may be utilized both with a water craft and separately therefrom. The device has an exhaust conduit including a check valve that permits the device to be utilized underwater. An arrangement is also provided for removably securing the housing under a water craft, whereby the propulsion device drives the craft while submerged.

Claims5

Dependent claims

A multi-purpose aquatic propulsion device, in combination, comprised of:

an elongated housing having a front portion and a rear portion, the housing further having an interior, the housing still further having formed in the front portion thereof a respective control depression, indicating depression, charging depression and external connection depression;
an electric battery disposed in the interior of the housing;
a guide ring integral with the rear portion of the housing;
an electric motor carried by the housing and having an output shaft extending from the rear portion of the housing, the electric motor being electrically connected to the battery, so that the battery provides the motor with electric power needed for the operation of the motor;
a propeller operatively carried and driven by the output shaft, such that the motor drives the propeller for propelling the device in the water;
a propeller shroud secured to the guide ring and surrounding the propeller, such that the user is provided with protection against contacting the propeller;
a watertight control switch operatively associated with the motor for controlling the operation of the motor, said control switch being disposed in the control depression;
a watertight visual indicator operatively associated with the battery for visually indicating the charging level of the battery, said visual indicator being disposed in the indicating depression;
a watertight charging outlet for receiving an external electric power recharging cord therein, the charging outlet being operatively associated with the battery for electrically recharging the battery, said charging outlet being disposed in the charging depression;
a watertight external connection outlet for receiving an external remote control cable, the external connection outlet being operatively associated with the motor for remotely controlling the operation of the motor, said external connection outlet being disposed in the external connection depression;
an exhaust conduit formed in the housing, the exhaust conduit including a check valve for venting gases released by the battery from the interior of the housing to the surrounding ambient environment and for preventing water from the ambient environment from entering the interior of the housing;
and
means for removably securing the housing under a water craft, whereby the propulsion device may be removably secured to and drives the water craft while submerged so that a multi-purpose aquatic propulsion device is provided that may be utilized both with a water craft and apart therefrom, said means including a downwardly-extending hanging plate carried by the water craft, an axial hanging seat carried by the housing, the axial hanging seat having an open front end for removably receiving the hanging plate therein, whereby the hanging plate and the hanging seat may be removably secured together under the water craft, a downwardly-extending the rod carried by the water craft and a tie rod seat carried by the guide ring, the tie rod seat having a trough bore formed therein for removably receiving and securing the tie rod therein, whereby the tie rod and the tie rod seat may be removably secured together under the water craft;
so that the propulsion device may be removably secured under the water craft either for use therewith while submerged or for use separately therefrom.

11 more elements

Dependencies are inferred from the claim text.

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Abstract

A multi-purpose aquatic propulsion device, in combination, comprised of:

an elongated housing having a front portion and a rear portion, the housing further having an interior, the housing still further having formed in the front portion thereof a respective control depression, indicating depression, charging depression and external connection depression;
an electric battery disposed in the interior of the housing;
a guide ring integral with the rear portion of the housing;
an electric motor carried by the housing and having an output shaft extending from the rear portion of the housing, the electric motor being electrically connected to the battery, so that the battery provides the motor with electric power needed for the operation of the motor;
a propeller operatively carried and driven by the output shaft, such that the motor drives the propeller for propelling the device in the water;
a propeller shroud secured to the guide ring and surrounding the propeller, such that the user is provided with protection against contacting the propeller;
a watertight control switch operatively associated with the motor for controlling the operation of the motor, said control switch being disposed in the control depression;
a watertight visual indicator operatively associated with the battery for visually indicating the charging level of the battery, said visual indicator being disposed in the indicating depression;
a watertight charging outlet for receiving an external electric power recharging cord therein, the charging outlet being operatively associated with the battery for electrically recharging the battery, said charging outlet being disposed in the charging depression;
a watertight external connection outlet for receiving an external remote control cable, the external connection outlet being operatively associated with the motor for remotely controlling the operation of the motor, said external connection outlet being disposed in the external connection depression;
an exhaust conduit formed in the housing, the exhaust conduit including a check valve for venting gases released by the battery from the interior of the housing to the surrounding ambient environment and for preventing water from the ambient environment from entering the interior of the housing;
and
means for removably securing the housing under a water craft, whereby the propulsion device may be removably secured to and drives the water craft while submerged so that a multi-purpose aquatic propulsion device is provided that may be utilized both with a water craft and apart therefrom, said means including a downwardly-extending hanging plate carried by the water craft, an axial hanging seat carried by the housing, the axial hanging seat having an open front end for removably receiving the hanging plate therein, whereby the hanging plate and the hanging seat may be removably secured together under the water craft, a downwardly-extending the rod carried by the water craft and a tie rod seat carried by the guide ring, the tie rod seat having a trough bore formed therein for removably receiving and securing the tie rod therein, whereby the tie rod and the tie rod seat may be removably secured together under the water craft;
so that the propulsion device may be removably secured under the water craft either for use therewith while submerged or for use separately therefrom.

11 more elements