Hand-drying device
First Claim
1. A hand-drying device, comprising:
- a volute defining a spiral air passage, the volute comprising a spiral conduit for air, the conduit having an input at its center, a peripheral output, and a cross section that increases from the input to the output; and
a motor, located at the center of the volute and connected to the input of the volute for pulling in air from the environment at an input velocity and for passing the air through a the volute input to the volute output to expel the air at an output velocity that is greater than the input velocity;
wherein the spiral conduit comprises a cross-section that increases progressively from the input to the output.
1 Assignment
0 Petitions
Accused Products
Abstract
A hand-drying device is disclosed. The hand-drying device includes a volute defining a spiral air passage, the volute comprising a spiral conduit for air, the conduit having an input at its center, a peripheral output, and a cross section that increases from the input to the output. The hand-drying device further includes a motor, located at the center of the volute and connected to the input of the volute for pulling in air from the environment at an input velocity and for passing the air through a the volute input to the volute output to expel the air at an output velocity that is greater than the input velocity. The spiral conduit comprises a cross-section that increases progressively from the input to the output.
-
Citations
8 Claims
-
1. A hand-drying device, comprising:
-
a volute defining a spiral air passage, the volute comprising a spiral conduit for air, the conduit having an input at its center, a peripheral output, and a cross section that increases from the input to the output; and
a motor, located at the center of the volute and connected to the input of the volute for pulling in air from the environment at an input velocity and for passing the air through a the volute input to the volute output to expel the air at an output velocity that is greater than the input velocity;
wherein the spiral conduit comprises a cross-section that increases progressively from the input to the output. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A method for providing a stream of air for drying hands, the method comprising:
-
pulling environmental air into an input of a volute; and
passing the environmental air through a volute having a cross section that increases from the input to its output. - View Dependent Claims (8)
-
Specification