Patent No: US D478,556 S
Patent No: US 6,601,645 B1
Patent No: US 6,656,000 B2
Circle Port
Slot Port
Converting a round port to a slot port.
Calculate the area of the round port(s) being used, then use the square
root function of your calculator to get the interior dimensions of an
equivalent suare port. The length (or depth) of the slot port will be the
same as that of the round port.
To calculate area: ( Area is a two dimensional measurement )
Circle =3.14 x Radius x Radius
4" Port
2"
2"
2 x 2 x 3.14=12.6
12.6"
4"
1"
12.6 x 1=12.6
B
U
I
L
D
I
N
G
A
N
E
N
C
L
O
S
U
R
E
9
