Abstract A device enabling the separation and removal of cementitious material from a concrete mix contained within a concrete mixer is provided. The concrete mixer, usually of the mobile type mounted on a land vehicle, comprises essentially, a drum or mixing vessel, a discharge or dump outlet and means for introducing water into the drum. The instant device comprises restraining and diverting member adapted to be positioned in alignment with said outlet, pulley means, for example pivotally mounting the device on the cement mixer enabling movement of the device from a position aligned with said outlet to a position displaced from said outlet, latch means for securing the device in aligned position with said outlet, and means for moving said device to a position out of alignment with said outlet, as required for normal operation of the concrete mixer.
A device enabling the separation and reclamation of gravel, stones, pebbles or the like from a concrete mix in combination with a mobile cement mixer having a drum, a delivery outlet, means for mixing and for feeding mix to said delivery outlet for discharging the contents of said drum, and means for introducing water into said drum; said device comprising screen means adapted to be positioned in alignment with said outlet, means mounting said screen means on said cement mixer, means for moving said screen means from a position aligned with said outlet to a position displaced from said outlet, and means for securing said screen in aligned position with said outlet.
Claim 2
Independent Claim
112 words
A device enabling the separation and reclamation of gravel, stones, pebbles or the like from a concrete mix in combination with a mobile cement mixer having a drum, a delivery outlet, means for mixing and for feeding mix to said delivery outlet for discharging the contents of said drum, and means for introducing water into said drum; said device comprising screen means adapted to be positioned in alignment with said outlet, means mounting said screen means on said cement mixer, means for moving said screen means from a position aligned with said outlet to a position displaced from said outlet, and means for securing said screen in aligned position with said outlet.
Claim 3
Dependent Claim
28 words
A device according to claim 1 wherein said means for moving said screen means to aligned and displaced positions with respect to said delivery outlet comprises pulley means.
Claim 4
Dependent Claim
24 words
A device according to claim 1 wherein said screen means comprises the bottom portion of a screen housing enclosure attached to said cement mixer.
Claim 5
Dependent Claim
31 words
A device according to claim 3 wherein said screen housing comprises an upper portion and a lower portion, said lower portion being rotatable about axle means attached to said upper portion.
Claim 6
Dependent Claim
30 words
A device according to claim 4 wherein said axle means includes an arm member pivotally mounted thereon, said arm member being attached to said lower portion of said screen housing.
Claim 7
Dependent Claim
25 words
A device according to claim 1 wherein said screen means comprises a screen having openings of average diameter of from about 1/8 to 21/2 inches.