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US 4,726,125 AGranted
Tumble dryers
AssigneePellerin Milnor Corporation
InventorNorvin L. Pellerin
Life of this patent
Estimating the term…
Abstract
There is disclosed a tumble dryer for cloth goods having a filter for collecting lint carried by heated air circulated through cloth goods contained within a rotatable drum, and a system for removing lint collected on the filter by causing air to be drawn through it in a direction opposite to that in which it passes during a drying cycle as well as to be swept across the upstream side of the filter and then out of the dryer for disposal.
Claims7
A tumble dryer, comprising
- a housing having an air inlet and an air outlet,
- a drum in the housing including a perforated cylindrical wall for containing cloth goods to be dried,
- means for rotating the wall,
- means forming a first space in the housing connecting the inlet and a first perforated portion of the drum wall and a second space in the housing connecting a second perforated portion of the drum wall and the outlet,
- a main blower connecting with the outlet for causing air to be drawn into the inlet, throughthe perforated protion of the drum wall, and thus the cloth goods in the drum, and out the outlet,
- means for heating the air as it circulates through the dryer,
- a filter mounted across the second space for collecting lint from the air as it passes from the drum to the outlet,
- a conduit connecting the second space near the upstream side of the filter with the exterior of the housing,
- a secondary blower for drawing air from the housing near the upstream side of the filter into and through the conduit when the conduit is open,
- a porous container in the conduit, and
- means for selectively closing the conduit, during a drying cycle, and opening the conduit and so confining air circulating within the second space that, upon stoppage of the main blower and operation of the secondary blower, air will be drawn from the outlet and through the filter and from the inlet and across the upstream side of the filter in order to remove lint therefrom and carry it into said container for collection and removal from the dryer.
8 more elements
Dependencies are inferred from the claim text.