AUDIBLE FILL LEVEL ALARMS FOR LIQUID STORAGE VESSELS
First Claim
Patent Images
1. An audible fill level alarm comprising:
- a whistle body having a lower whistle hole;
a whistle-tube depending from said whistle body; and
a whistle disk having an upper whistle hole, said whistle disk and said whistle body defining a whistle chamber, said whistle chamber being conical in shape.
2 Assignments
0 Petitions
Accused Products
Abstract
An audible fill level alarm is provided. The alarm includes a whistle body having a lower whistle hole, a whistle-tube depending from said whistle body, and a whistle disk having an upper whistle hole. The whistle disk and the whistle body define a whistle chamber that is conical in shape.
-
Citations
24 Claims
-
1. An audible fill level alarm comprising:
-
a whistle body having a lower whistle hole; a whistle-tube depending from said whistle body; and a whistle disk having an upper whistle hole, said whistle disk and said whistle body defining a whistle chamber, said whistle chamber being conical in shape. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. An audible fill level alarm comprising:
-
a conical whistle body having a lower whistle hole; a whistle-tube depending from said whistle body; and a whistle disk having an upper whistle hole, said whistle disk being secured to said whistle body to define a conical whistle chamber therebetween. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. An audible fill level alarm comprising:
-
a whistle body having a lower whistle hole; a whistle-tube depending from said whistle body; a whistle disk having an upper whistle hole, said whistle disk and said whistle body defining a whistle chamber having a chamber height; a ratio of a diameter of said upper whistle hole to a diameter of said lower whistle hole being between about 1.075 to about 1.15; and a ratio of said chamber height to said diameter of said upper whistle hole being about 1.0. - View Dependent Claims (22, 23, 24)
-
Specification