Apparatus and method for removing concrete from interior surfaces of a concrete mixing drum
First Claim
1. Apparatus for removing concrete from interior surfaces of a concrete mixing drum including an open end, the surfaces including at least one helical interior surface facing away from the open end, the apparatus comprising:
- an elongate probe having a longitudinal axis and an axially extending forward end portion adapted for insertion into the drum through the open end thereof;
adjustable support structure supporting the probe and positionable at an external location relative to the drum for positioning the probe at a variable elevation and a variable angular orientation relative to horizontal for insertion into the drum, the support structure supporting a guideway support, the guideway support including at least one bearing adapted for supporting the probe for movement of the forward end portion thereof into and out of the drum through the open end thereof, at least one fluid nozzle mounted to the probe in position for discharging a stream of fluid against the at least one helical interior surface facing away from the open end under sufficient pressure to dislodge accumulated concrete therefrom; and
a fluid conduit connected to the nozzle for communicating the nozzle with a source of the fluid under pressure.
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Abstract
Apparatus for removing concrete from the interior surfaces of a concrete mixing drum, the drum including an open end and at least one interior surface facing away from or opposite the open end, the apparatus including an elongate probe having a longitudinal axis and an axially extending forward end adapted for insertion into the drum through the open end thereof; a vertically adjustable support structure supporting a guideway support, the guideway support including at least one bearing adapted for supporting the probe for movement of the forward end thereof into and out of the drum through the open end thereof; and at least one fluid nozzle mounted to the probe in position for discharging a stream of fluid against the at least one interior surface facing opposite the open end under sufficient pressure to dislodge accumulated concrete therefrom as the probe is moved in the drum.
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Citations
14 Claims
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1. Apparatus for removing concrete from interior surfaces of a concrete mixing drum including an open end, the surfaces including at least one helical interior surface facing away from the open end, the apparatus comprising:
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an elongate probe having a longitudinal axis and an axially extending forward end portion adapted for insertion into the drum through the open end thereof;
adjustable support structure supporting the probe and positionable at an external location relative to the drum for positioning the probe at a variable elevation and a variable angular orientation relative to horizontal for insertion into the drum, the support structure supporting a guideway support, the guideway support including at least one bearing adapted for supporting the probe for movement of the forward end portion thereof into and out of the drum through the open end thereof, at least one fluid nozzle mounted to the probe in position for discharging a stream of fluid against the at least one helical interior surface facing away from the open end under sufficient pressure to dislodge accumulated concrete therefrom; and
a fluid conduit connected to the nozzle for communicating the nozzle with a source of the fluid under pressure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. Apparatus for removing concrete from interior surfaces of a concrete mixing drum including an open end, the surfaces including at least one helical interior surface facing away from the open end and extending from a location within the interior spaced from the opening to a location adjacent to the opening, the apparatus comprising:
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an elongate probe having a longitudinal axis and an axially extending forward end portion adapted for insertion into the drum through the open end thereof;
adjustable support structure positionable externally of the drum and supporting the probe at a variable elevation and a variable angular orientation relative to horizontal for movement of the forward end portion thereof into and out of the drum through the open end thereof, at least one fluid nozzle mounted to the forward end portion of the probe in a position such that when the forward end portion is located in the drum a stream of fluid under pressure can be discharged through the nozzle against the at least one helical interior surface facing away from the open end of the drum for dislodging accumulated concrete therefrom; and
a fluid conduit connected to the nozzle for communicating the nozzle with a source of the fluid under pressure.
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14. Apparatus for removing concrete from interior surfaces of a rotatable concrete mixing drum, the drum having an open end communicating with an interior of the drum and at least one raised helical flight extending around the interior from a location spaced from the open end to a location adjacent to the open end for lifting concrete in the interior to the open end for discharge therethrough when the drum is rotated in a predetermined direction, the interior surfaces including at least one helical surface on the at least one raised interior helical flight along the extent thereof facing away from the open end, the apparatus comprising:
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an elongate probe having a longitudinal axis and an axially extending forward end portion for insertion into the drum through the open end thereof, at least one fluid nozzle mounted to the forward end portion of the probe in a position such that when the forward end portion is located in the drum a stream of fluid under pressure can be discharged through the nozzle against the at least one interior surface on the at least one helical flight facing away from the open end of the drum, and a fluid conduit connected to the nozzle for communicating the nozzle with a source of the fluid under pressure; and
adjustable support structure positionable externally of the drum and supporting the probe at a variable elevation and a variable angular orientation relative to horizontal for movement of the forward end portion thereof into and out of the drum through the open end thereof for positioning the at least one fluid nozzle in the position for discharging the stream of fluid under pressure against the at least one interior surface on the at least one helical flight facing away from the open end along the extent thereof.
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Specification