1. Field of the Invention
The present invention relates to portable electrolyte powered devices and more particularly to a liquid powered assembly that utilizes a removable bottom base for sealing the housing that contains the electrolyte solution.
2. Description of the Related Art
Electrolyte solutions are known in the prior art for providing power to operate very low power consumption devices such as clocks and calculators. For example, Bedol International Group, Inc., Claremont, Calif., distributes a portable “Water Clock” that is operated by a solution of water and lemon (or alternatively salt). The Bedol “Water Clock” includes a cap that extends from an upper portion of the housing of the device.
Present applicants are also the inventors of the invention disclosed in U.S. Ser. No. 29/313,579, filed on Jan. 23, 2009, entitled “Clock”.
In a broad aspect, the present invention is a liquid powered assembly including a housing; a removable bottom base; a seal; an electrolyte battery assembly; and, a liquid powered device. The housing includes an upper end portion and a lower end portion. The housing has a volume therein for containing an electrolyte solution. The lower end portion has a fluid inlet. The removable bottom base is removably attached to the lower end portion of the housing. The removable bottom base has a bottom surface for supporting the liquid powered assembly. A seal engages the housing and the removable bottom base for providing fluidic sealing engagement therebetween. An electrolyte battery assembly is positioned within the housing. A liquid powered device is operably attached to the electrolyte battery assembly. To provide operation, the housing and the removable bottom base are detached relative to each other and the housing is turned substantially upside down to allow filling of the housing via the inlet. The bottom base is then attached to the housing and the assembly is then inverted for use.
One advantage of the present invention is that in use the filling inlet is disguised. Additionally, the present invention provides enhanced surface area for branding the device or adding other graphical enhancements.
Referring to the drawings and the characters of reference marked thereon,
The lower end portion 18 of the housing 12 includes a stem 26 defining the fluid inlet. The stem 26 is threaded. The housing 12 may be manufactured in two parts that are bonded together by, for example, ultrasonic welding.
The removable, cylindrical, bottom base 14 has a cavity formed in an upper end thereof. The sides 28 of the cavity contain threads for engaging the threads of the stem 26. The seal 20, i.e. a circular rubber washer, is positioned at the bottom of cavity.
The electrolyte battery assembly 22 preferably comprises two sets of metal rods. Each set includes a brass rod and a zinc rod. During operation, as shown in
The liquid powered device 24 may be any number of devices, for example, a clock, calculator, or a light.
To fill the liquid powered assembly 10, the housing it detached from the bottom base. This is easily accomplished. The bottom surface of the bottom base has a diameter in a range of between about 2.5 inches and 3.5 inches, preferably about 3 inches. Therefore, the bottom base is easily manipulated.
The housing 12 is grasped and turned substantially upside down, as shown in
Other embodiments and configurations may be devised without departing from the spirit of the invention and the scope of the appended claims.