Eraser for blackboard
OwnerMing-Feng Yuinventor
Life of this patent
Estimating the term…
Abstract
An eraser includes a housing (20) having a receiving chamber (21), a collection zone (23) and a plurality of reinforcing ribs (26), a mounting board (30) mounted on the housing, a cleaning member (40) mounted on the mounting board, a support bracket (50) mounted on the housing, a door (60) removably mounted on the housing to cover the collection zone, a hollow separation member (70) mounted in the housing to separate the receiving chamber from the collection zone, and a control valve (80) movable to open the separation member so as to connect the receiving chamber with the collection zone or to close the separation member so as to interrupt a connection between the receiving chamber and the collection zone, and two decorative covers mounted on the housing and each abutting the reinforcing ribs.
Claims20
An eraser, comprising:
- a housing (20) having an inner portion provided with a receiving chamber (21) and a collection zone (23) connected to the receiving chamber and having two opposite sides each provided with a plurality of reinforcing ribs (26);
- a mounting board (30) mounted on an open bottom of the housing and connected to the receiving chamber of the housing;
- a cleaning member (40) mounted on the mounting board and connected to the receiving chamber of the housing;
- a support bracket (50) mounted on the open bottom of the housing and connected to the collection zone of the housing;
- a door (60) pivotally mounted on the support bracket and removably mounted on the housing to cover the collection zone of the housing;
- a hollow separation member (70) mounted in the housing and located between the receiving chamber and the collection zone of the housing to separate the receiving chamber of the housing from the collection zone of the housing;
- a control valve (80) pivotally mounted on the separation member and movable relative to the separation member to open the separation member so as to connect the receiving chamber of the housing with the collection zone of the housing or to close the separation member so as to interrupt a connection between the receiving chamber and the collection zone of the housing;
- two decorative covers (20a) mounted on the two opposite sides of the housing and each abutting the respective reinforcing ribs of the housing to enhance a whole strength of the housing.
Dependencies are inferred from the claim text.