Abstract: A golf putting trainer may be utilized in combination with a golf putter to: a) position the putter face perpendicular to the shoulder line; b) provide a visual aid to set the shoulders parallel to the perceived putt line; c) train a golfer to execute a putting stroke by moving the shoulders, arms, hands, and putter in a synchronized motion around the stroke axis or upper spine; d) provide a visual aid to monitor the motion of the shoulders on-plane. The golf putting trainer may include an adjustable clamp, which can slide up and down the putter shaft to accommodate golfers of various sizes, a main shaft attached to the adjustable clamp, and a shoulder alignment guide attached to the main shaft that allow equal pressure to be applied against both shoulders of a golfer.

Abstract: Automatically operable protection is afforded to eliminate pollution to the atmosphere caused by failure of fabric filter bags in a filter network. This is achieved by increases after bag failure in aerodynamic flow volume of fluid in the flow path to the individual filter bags past a closure valve structure. Critical and rapid response is achieved by an aerodynamic substantially flat plate member pivotably mounted off center to initiate movement toward a closure position. A counterweight on the smaller area side moving toward closure assures closure of the flow path. The valve may be latched close, and may telemeter closure to a central location visible to an operator. For reverse jet type systems the valve is mounted in a fluid output flow path from the filter bags in a location where the reverse jet flow does not pass through the valve. Consistent operation of a plurality of networked valves is assured by locating them in flow path positions having little turbulence.