152 of the corresponding link 151, with diaphragm 58 pressed tightly (by seal plate 155) between ends 152 and 156b (to stop liquid leakage into the management field meeting). With reference once more to FIG. 7, cam tracks 50a have an identical shapes, however the 2 cams 50 are assembled basically “back-to-back” (one is rotated by 180 degrees in regards to the vertical axis in FIG. 7 relative to the other), which orients the cam track 50a of certainly one of them because the mirror image of cam track 50a of the opposite (in order that the angular orientation of one observe 50a about shaft fifty two is displaced relative to the orientation of the other track 50a about shaft 52). Similarly, in the FIG. 10A embodiment, two an identical cams 50′ are assembled essentially “back-to-again” on shaft 52, thus orienting cam track 50b of one in all them as the mirror picture of cam monitor 50b of the other. As shown in FIGS. A seal plate 155 (shown in FIGS. 155a (proven in FIG. 7) of control field portion 14a. A shift hyperlink 156 fits within an opening by way of the center of every seal plate 155. As cam 50 pivots hyperlink 151 upward (or downward), link 156 at the alternative finish of the rigid shift assembly (comprising link 151, tube 154, and hyperlink 156) will pivot downward (or upward).
Alternatively, the elements are all related to a single circuit board sixty eight (through which case, board 70 is omitted). In a preferred embodiment, the microprocessor is preprogrammed to assert any of two or extra units of control signals to motor 74. For example, the microprocessor will be programmed to assert a first set of comparatively low current alerts to the motor in the event that the batteries powering the apparatus have a low level (or if the onboard sensors indicate that the apparatus is caught towards an impediment), and otherwise to assert a second set of relatively excessive present signals to the motor. Stepper motor seventy four and cam gear cluster 55 are additionally mounted inside assembled elements 14a, 14b, and 14c. Two cams 50 and one cam gear fifty four are fixedly mounted on cam shaft 52. Shaft 52 is rotatably mounted to element 14a by cam bearings 51. Thus, cams 50, gear 54, and shaft fifty two rotate together as a unit. Gear cluster 55, engaged between motor 74 and cam gear 54, is pushed by motor 74 (which is preferably an electronically managed electric step motor).
The inventors contemplate that the invention can be useful for other applications, e.g., to clean other surfaces submerged in water or in liquids apart from water. 4 and 13) and Why Choose Us? an outlet 10. Outlet 10 is dimensioned for attachment to the decrease finish of a versatile hose 8 (shown only in FIG. 13), and so outlet 10 is typically referred to herein as a “hose connection” 10. Typically, the higher end of hose eight shall be related to one of the Inground Pool Prices California‘s present suction ports, which in flip is connected to a traditional surface unit 8A (proven in FIG. 13) disposed above the water surface. A first embodiment of the invention can be described with reference to FIGS. 1-8 and 11-22. In this embodiment, the invention features a turbine assembly 12 having an inlet 9 (shown in FIGS. The time period “water” might be utilized in a broad sense throughout the specification, together with in the claims, to denote recent water, salt water, and any other liquid wherein a floor (to be cleaned by the inventive apparatus) is immersed.
In any embodiment of the invention, the programming card will be coded with a pattern of notches at along its edges. Use of such a battery pack permits safer and extra handy operation than can be achieved with 24 hour pool services Texas cleaners which have employed a energy cable extending to the submerged apparatus from a power supply disposed above the water surface. Selection of a larger inlet dimension ends in slower, extra thorough, cleaning than is generally achievable with a smaller turbine inlet. When the notched card is positioned into place adjoining the magnetic (or optical or mechanical) switches, the card will (or will not) actuate mechanical means for controlling the size of a turbine assembly fluid inlet nozzle depending on the absence (or presence) of a notch at the location of the mechanical means. The larger inlet will even enable for passage of bigger debris. In preferred embodiments, the inventive apparatus is powered by an onboard battery pack sealed in a water-tight enclosure. The smaller inlet will give larger turbine speed leading to larger unit velocity and in addition increase torque for higher wall climbing.
The currents of the “relatively low” current signals may be chosen to maximise the torque exerted by the motor whereas minimizing battery consumption, and the currents of the “comparatively excessive” current alerts could be selected to maximise the torque exerted by the motor (and not using a battery consumption minimization constraint). Each of cams 50 defines a cam track 50a (best proven Sign In FIG. 5) having a non-uniform radius relative to shaft 52. In variations on this embodiment, cams 50 are replaced by cams 50′ proven in FIG. 10A or cams such as the cam having camtrack 50A’ proven in FIGS. Thus, the motor will be controlled to eat much less power in response to the “relatively low” current signals than in response to the “comparatively high” present indicators. 9 and 10. Each of cams 50′ defines a minimum of one cam observe 50b having a non-uniform radius relative to central portion 52a of cam 50′ (cams 50′ are mounted to shaft 52 by inserting shaft 52 by portion 52a of each cam 50′). A pair of cam follower links 151 (considered one of which is proven in FIG. 7A and in FIG. 7B) are provided, every having a cam follower shaft a hundred and fifty which rides in one of the cam tracks 50a or 50b. Or, a pair of cam follower hyperlinks 151′ (one proven in every of FIGS.