Holes 236, 238 are additionally formed within the small diameter areas 212, 214, respectively. More particularly, the relief valve 240 Is it possible to heat a pool in the winter? supplied with a housing 244, which has an inlet 246, and a cap 247, which has an outlet opening 248. The inlet 246 is interconnected to the port 148 of the cylinder 132 by the tube 242 such that pressurized water could be supplied from the valve chamber 124 to the relief valve 240 by the outlet 236 and opening 232 of the piston 200 (as indicated by arrows A in FIG. 10A) and the tube 242 (as indicated by arrow B in FIG. 10A). A ball or valve member 250 is mounted within the housing 244 and retained therein by the cap 247 connected to the housing 244 (see FIG. 10A). The ball 250 is movable between an open position, by which the ball 250 is spaced from the outlet opening 248, and a closed place, through which the ball 250 is urged in opposition to the outlet opening 248. An urging member 252 (e.g., a spring) is mounted in the housing 244 for continuously urging the ball 250 toward its closed position. Referring primarily to FIGS. 7A, 7B, 9A-9C and 10A, a relief valve 240 is connected to the port 148 of the cylinder 132 of the valve meeting a hundred and ten via a connecting tube 242 for inflicting motion of the piston 200 between its retracted and prolonged positions.
Because the spin-out mode cam 306 continues to rotate, the cam member 322 disengages the ball 264 of the relief valve 254, inflicting the ball 264 to maneuver into its closed place and hence re-pressurizing the tube 256 (i.e., the downstream facet of the piston 202) to a degree considerably equivalent to that of the valve chamber 124 (i.e., the upstream facet of the piston 202). In response, the piston 202 strikes into its retracted position and causes the spin-out mode outlet 184 to be closed by the valve member 198, leaving only the top mode outlet 184 open and thereby inflicting the cleaner 10 to resume its top mode operation. Throughout the operation of the cleaner 10, the top/bottom mode cam 304 constantly reciprocates between its two end points of movement in response to the rotation of the cam driver 298 of the drive gear 292. As the highest/backside mode cam 304 moves in reciprocating movement, the cam portion 310 of the top/backside mode cam 304 disengages the relief valve 240 and engages the relief valve 254 (see FIG. 10C). In response, the relief valve 240 moves into its closed position, whereas the relief valve 254 strikes into its open position.
A entrance spin-out jet nozzle sixty four is also mounted to the entrance wall part 32 of the chassis 20, whereas a rear spin-out jet nozzle 66 is mounted to the rear wall section 26 of the chassis 20 (see FIGS. More notably, the entrance and rear spin-out jet nozzles 64, sixty six are angled usually downwardly and are oriented at an angle relative to the longitudinal axis of the cleaner 10 (see the arrows in FIG. 6 indicating the path through which the entrance and rear spin-out jet nozzles 64, 66 are oriented relative to the longitudinal axis of the cleaner 10) so as to cause the cleaner 10 to spin in a predetermined course (e.g., in a clockwise course) and to thereby transfer away from its forward path in a arcuate sideward path (as illustrated in broken line illustration in FIG. 16B), when the cleaner 10 is in its spin-out mode. With reference to FIGS.
It needs to be understood, nonetheless, that the next description is only meant to be illustrative of the current invention and is not meant to restrict the scope of the current invention, which has applicability to other types of Pool Contractors Quotes cleaners. With reference to FIG. 1, the cleaner 10 is tailored to wash an interior wall 12 of a swimming pool 14 and an higher surface sixteen of a body of water contained therein. Referring initially to FIGS. Briefly, the cleaner 10 is adapted to function in a fashion just like that of the cleaners disclosed Sign In U.S. 1, 2 and 2A, there is proven a optimistic pressure swimming Inground Pool Prices California cleaner 10 constructed in accordance with a first embodiment of the current invention. Pat. Nos. 6,090,219 and 6,365,039 and International Patent Publication No. WO 99/33582 (i.e., International Patent Application No. PCT/US98/27623), the disclosures of which are included herein by reference. To facilitate consideration and discussion, the fundamental operation of the cleaner 10 can be discussed first, adopted by a detailed discussion of its parts.
It should also be appreciated that because the cam members 322 of the spin-out mode cam 306 have different widths, each of them is tailored to engage the relief valve 240 or the relief valve 254 for a special duration. Consequently, the cleaner 10 is tailored to perform its spin-out mode operation for a distinct time period throughout every spin-out cycle, making its movement more random. For instance, FIGS. 12A and 12B illustrate two alternative spin-out mode cams 306′, 306″ having a number of cam members 322′, 322″, respectively. Because the spin-out mode cam 306 is removably mounted on the drive shaft 302, it may be removed and changed with different spin-out mode cams. Because of the smaller number of cam members, the spin-out mode cam 306′ is tailored for less frequent spin-out mode operations, and is therefore useful, as an illustration, in reference to massive swimming pools or swimming pools having minimum obstructions.
Because the spin-out mode cam 306 continues to rotate, the cam member 322 disengages the ball 264 of the relief valve 254, inflicting the ball 264 to maneuver into its closed place and hence re-pressurizing the tube 256 (i.e., the downstream facet of the piston 202) to a degree considerably equivalent to that of the valve chamber 124 (i.e., the upstream facet of the piston 202). In response, the piston 202 strikes into its retracted position and causes the spin-out mode outlet 184 to be closed by the valve member 198, leaving only the top mode outlet 184 open and thereby inflicting the cleaner 10 to resume its top mode operation. Throughout the operation of the cleaner 10, the top/bottom mode cam 304 constantly reciprocates between its two end points of movement in response to the rotation of the cam driver 298 of the drive gear 292. As the highest/backside mode cam 304 moves in reciprocating movement, the cam portion 310 of the top/backside mode cam 304 disengages the relief valve 240 and engages the relief valve 254 (see FIG. 10C). In response, the relief valve 240 moves into its closed position, whereas the relief valve 254 strikes into its open position.
A entrance spin-out jet nozzle sixty four is also mounted to the entrance wall part 32 of the chassis 20, whereas a rear spin-out jet nozzle 66 is mounted to the rear wall section 26 of the chassis 20 (see FIGS. More notably, the entrance and rear spin-out jet nozzles 64, sixty six are angled usually downwardly and are oriented at an angle relative to the longitudinal axis of the cleaner 10 (see the arrows in FIG. 6 indicating the path through which the entrance and rear spin-out jet nozzles 64, 66 are oriented relative to the longitudinal axis of the cleaner 10) so as to cause the cleaner 10 to spin in a predetermined course (e.g., in a clockwise course) and to thereby transfer away from its forward path in a arcuate sideward path (as illustrated in broken line illustration in FIG. 16B), when the cleaner 10 is in its spin-out mode. With reference to FIGS.
It needs to be understood, nonetheless, that the next description is only meant to be illustrative of the current invention and is not meant to restrict the scope of the current invention, which has applicability to other types of Pool Contractors Quotes cleaners. With reference to FIG. 1, the cleaner 10 is tailored to wash an interior wall 12 of a swimming pool 14 and an higher surface sixteen of a body of water contained therein. Referring initially to FIGS. Briefly, the cleaner 10 is adapted to function in a fashion just like that of the cleaners disclosed Sign In U.S. 1, 2 and 2A, there is proven a optimistic pressure swimming Inground Pool Prices California cleaner 10 constructed in accordance with a first embodiment of the current invention. Pat. Nos. 6,090,219 and 6,365,039 and International Patent Publication No. WO 99/33582 (i.e., International Patent Application No. PCT/US98/27623), the disclosures of which are included herein by reference. To facilitate consideration and discussion, the fundamental operation of the cleaner 10 can be discussed first, adopted by a detailed discussion of its parts.
It should also be appreciated that because the cam members 322 of the spin-out mode cam 306 have different widths, each of them is tailored to engage the relief valve 240 or the relief valve 254 for a special duration. Consequently, the cleaner 10 is tailored to perform its spin-out mode operation for a distinct time period throughout every spin-out cycle, making its movement more random. For instance, FIGS. 12A and 12B illustrate two alternative spin-out mode cams 306′, 306″ having a number of cam members 322′, 322″, respectively. Because the spin-out mode cam 306 is removably mounted on the drive shaft 302, it may be removed and changed with different spin-out mode cams. Because of the smaller number of cam members, the spin-out mode cam 306′ is tailored for less frequent spin-out mode operations, and is therefore useful, as an illustration, in reference to massive swimming pools or swimming pools having minimum obstructions.