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US 4,671,872 AGranted
Aerator mast with azimuth lock and bottom stop
AssigneeAir-O-Lator Corporation
InventorsBarry G. Cramer, Roy A. Cramer
Life of this patent
Estimating the term…
Abstract
A horizontal mixing aerator rides on a upright mast or beam for submersion in a body of liquid such as a sewage equalization basin, oxidation ditch or sludge holding tank. The aerator has a submersible mixer motor driving a propeller which is mounted to the beam by a slidable bracket arrangement for height adjustment. The bracket is also swingably mounted to the beam for adjustment of the vertical plane angle and the beam is rotatable for azimuth changes in the direction of liquid flow. A lower bracket stop includes vibration reducing elements. An upper azimuth lock also includes vibration reducing elements. The locking parts have a high co-efficient of friction.
Claims14
A liquid circulating apparatus comprising:
- (a) an upright beam member for extending into a body of liquid;
- (b) upper and lower support means for holding said beam member in said body;
- (c) a bracket mounted on said beam member and including spaced sidewalls and an endwall;
- (d) a submersible motor mounted on said bracket and extending outwardly of said endwall;
- (e) a propulsion means operably connected to and rotatably powered by said motor to effect an outwardly directed flow in said body of liquid;
- (f) lift means to raise and lower said bracket, with said motor and propulsion means attached thereto, in said beam member;
- (g) a bottom stop on said beam member for stopping said bracket at a desired downward position, and including a plurality of plates mounted angularly on said beam member and converging upwardly in a wedge formation;
- (h) said bracket spaced sidewalls and said endwall being angled outwardly about said beam member and mateable with said bottom stop;
- (i) rubber, vibration dampening pads interposed between said bottom stop plates and said bracket sidewalls and endwall;
- (j) an azimuth lock extending between said upper support means and said beam member at an upper end thereof;
- said azimuth lock including a clamp ring tightenable about said beam member, for setting a selected azimuth of said propulsion means, a plurality of lock segments insertable between said clamp ring and said beam member, rubber vibration dampening pads interposed between said lock segments and said beam member, and said lock segments having a roughened surface texture for frictional engagement with said clamp ring.
8 more elements
A liquid circulating apparatus comprising:
- (a) an upright beam member for extending into a body of liquid;
- (b) upper and lower support means for holding said beam member in said body;
- (c) a bracket mounted on said beam member;
- (d) a submersible motor mounted on said bracket and extending outwardly therefrom;
- (e) a propulsion means operably connected to said motor to effect an outwardly directed flow in said body of liquid;
- (f) said beam member being rotatable relative to said upper and lower support means for adjusting the azimuth of flow from said propulsion means;
- (g) an azimuth lock positioned between said upper support means and said beam member and including a clamp ring tightenable about said beam member for setting a selected azimuth of said propulsion means and a plurality of lock segments positioned between said clamp ring and said beam member;
- and
- (h) said lock segment having a roughened surface texture for frictional engagment with said clamp ring.
6 more elements
The liquid circulating apparatus comprising:
- (a) an upright beam member for extending into a body of liquid;
- (b) upper and lower support means for holding said beam member in said body;
- (c) a bracket mounted on said beam member;
- (d) a submersible motor mounted on said bracket and extending outwardly therefrom;
- (e) a propulsion means operably connected to said motor to effect an outwardly directed flow in said body of liquid;
- (f) lift means to raise and lower said bracket, with said motor and propulsion means attached thereto, on said beam member;
- (g) said beam member being rotatable relative to said upper and lower support means for adjusting the azimuth of flow from said propulsion means;
- (h) an azimuth lock positioned between said upper support means and said beam member and including a clamp ring tightenable about said beam member for setting a selected azimuth of said propulsion means, a plurality of lock segments positioned between said clamp ring and said beam member, rubber vibration dampening pads interposed between said lock segments and said beam member, and said lock segments having a roughened surface texture for frictional engagement with said clamp ring.
5 more elements
A liquid circulating apparatus comprising:
- (a) an upright beam member for extending into a body of liquid;
- (b) upper and lower support means for holding said beam member in said body;
- (c) a bracket mounted on said beam member and including spaced sidewalls and an endwall;
- (d) a submersible motor mounted on said bracket and extending outwardly of said endwall;
- (e) a propulsion means operably connected to and rotatably powered by said motor to effect an outwardly directed flow in said body of liquid;
- (f) lift means to raise and lower said bracket, with said motor and propulsion means attached thereto, on said beam member;
- (g) a bottom stop on said beam member for stopping said bracket at a desired downward position, and including a plurality of plates mounted angularly on said beam member and converging upwardly in a wedge formation;
- (h) said bracket spaced sidewalls and endwall being angled outwardly about said beam member and mateable with said bottom stop;
- and
- (i) rubber, vibration dampening pads interposed between said bottom stop plates and said bracket sidewalls and endwall.
7 more elements
A liquid circulating apparatus comprising:
- (a) an upright beam member for extending into a body of liquid;
- (b) upper and lower support means for holding said beam member in said body;
- (c) a bracket mounted on said beam member and including spaced wall means;
- (d) a submersible motor mounted on said bracket and extending outwardly of said wall means;
- (e) a propulsion means operably connected to and rotatably powered by said motor to effect an outwardly directed flow in said body of liquid;
- (f) lift means to raise and lower said bracket, with said motor and propulsion means attached thereto, on said beam member;
- (g) a bottom stop on said beam member for stopping said bracket at a desired downward position, and including plate means mounted angularly on said beam member and tapering upwardly in a wedge formation;
- and
- (h) said bracket wall means extending about said beam member and angling upwardly to mate with said plate means of said bottom stop.
6 more elements
Dependencies are inferred from the claim text.