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US 4,375,712 AGranted
Dust collector for industrial sewing machine
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsMasahisa Kato, Syouji Kasugai
Life of this patent
Estimating the term…
Abstract
A waste collector for a sewing machine uses first and second different collection boxes, the second of which has a larger diameter suction hose than the first. The box having the larger diameter suction hose is coupled to the blower motor only through the first box via an airflow path which is more restricted than that of the larger suction hose.
Claims6
A waste collector for an industrial sewing machine, comprising:
- a blower motor having a suction inlet;
- a first waste collecting box coupled to said suction inlet of said blower motor;
- a first suction hose having one end connected to said first waste collecting box and the other end located at said sewing machine for collecting waste;
- a second waste collecting box;
- a second suction hose having one end connected to said second waste collecting box and the other end located at said sewing machine for collecting waste;
- and
- communicating means for communicating a portion of the suction pressure of said motor to said second box from said first box.
4 more elements
Dependencies are inferred from the claim text.