Vacuum anchor
In one aspect of the invention, a vacuum anchor assembly for anchoring a fall protection system to a surface of an anchorage structure comprises an anchor member having an air input connector, a venturi, and a seal member incorporated into the anchor member. The air input connector is configured and arranged to receive air from a pressurized air source. The venturi is in fluid communication with the air input connector and is configured and arranged to receive air and create a vacuum therefrom. The seal member is in fluid communication with the venturi and is configured and arranged to receive the vacuum and resulting suction and create a seal between the anchor member and the surface of the anchorage structure sufficient to operatively connect the anchor member to the surface of the anchorage structure with the vacuum and resulting suction created within the anchor member.
1. A vacuum anchor assembly for anchoring a fall protection system to a surface of an anchorage structure, comprising:
a) an anchor member having an air input connector, a venturi, and a seal member incorporated into the anchor member;
b) the air input connector configured and arranged to receive air from a pressurized air source;
c) the venturi in fluid communication with the air input connector configured and arranged to receive air and create a vacuum therefrom;
d) the seal member in fluid communication with the venturi configured and arranged to receive the vacuum and resulting suction and create a seal between the anchor member and the surface of the anchorage structure sufficient to operatively connect the anchor member to the surface of the anchorage structure with the vacuum and resulting suction created within the anchor member; and
e) a check valve and a control valve incorporated into the anchor member between the venturi and the seal member to control the vacuum supplied to the seal member and allow for the anchor member to be released from the surface of the anchorage structure.
2. The vacuum anchor assembly of claim 1 , wherein the pressurized air source is a compressed air cylinder.
3. The vacuum anchor assembly of claim 2 , wherein the compressed air cylinder is a bottle containing 3,000 psi compressed air operatively connected to the anchor member.
4. The vacuum anchor assembly of claim 1 , the anchor member further comprising a vacuum outlet connector configured and arranged to supply vacuum created within the anchor member to an auxiliary anchor member.
5. The vacuum anchor assembly of claim 1 , the anchor member further comprising a vacuum switch operatively connected to an indicator, the vacuum switch opening if the vacuum level is greater than a predetermined vacuum level thereby preventing the indicator from providing an indication of low vacuum level and closing if the vacuum level is less than the predetermined vacuum level thereby causing the indicator to provide an indication of low vacuum level.
6. The vacuum anchor assembly of claim 5 , wherein the predetermined vacuum level is approximately 20 inches Hg.
7. The vacuum anchor assembly of claim 1 , the anchor member further comprising a pressure switch operatively connected to an indicator, the pressure switch opening if the air pressure is greater than a predetermined air pressure thereby preventing the indicator from providing an indication of low air pressure and closing if the air pressure is less than the predetermined air pressure thereby causing the indicator to provide an indication of low air pressure.
8. The vacuum anchor assembly of claim 7 , wherein the predetermined air pressure is approximately 75 psi.
9. A self-contained vacuum anchor assembly for anchoring a fall protection system to a surface of an anchorage structure, comprising:
a) an anchor member having a housing, an air input connector, a venturi, and a seal member incorporated into the anchor member, the housing containing the venturi;
b) the air input connector configured and arranged to receive air from a pressurized air source;
c) the venturi in fluid communication with the air input connector configured and arranged to receive air and create a vacuum therefrom;
d) the seal member in fluid communication with the venturi configured and arranged to receive the vacuum and resulting suction and create a seal between the anchor member and the surface of the anchorage structure sufficient to operatively connect the anchor member to the surface of the anchorage structure with the vacuum and resulting suction created within the anchor member; and
e) a check valve and a control valve incorporated into the anchor member between the venturi and the seal member to control the vacuum supplied to the seal member and allow for the anchor member to be released from the surface of the anchorage structure.
10. The self-contained vacuum anchor assembly of claim 9 , wherein the pressurized air source is a bottle containing 3,000 psi compressed air operatively connected to the anchor member.
11. The self-contained vacuum anchor assembly of claim 9 , the anchor member further comprising a vacuum outlet connector configured and arranged to supply vacuum created within the anchor member to an auxiliary anchor member.
12. The self-contained vacuum anchor assembly of claim 9 , the anchor member further comprising a vacuum switch operatively connected to an indicator, the vacuum switch opening if the vacuum level is greater than a predetermined vacuum level thereby preventing the indicator from providing an indication of low vacuum level and closing if the vacuum level is less than the predetermined vacuum level thereby causing the indicator to provide an indication of low vacuum level.
13. The self-contained vacuum anchor assembly of claim 12 , wherein the predetermined vacuum level is approximately 20 inches Hg.
14. The self-contained vacuum anchor assembly of claim 9 , the anchor member further comprising a pressure switch operatively connected to an indicator, the pressure switch opening if the air pressure is greater than a predetermined air pressure thereby preventing the indicator from providing an indication of low air pressure and closing if the air pressure is less than the predetermined air pressure thereby causing the indicator to provide an indication of low air pressure.
15. The self-contained vacuum anchor assembly of claim 14 , wherein the predetermined air pressure is approximately 75 psi.
16. A method of securing a vacuum anchor assembly to a surface of an anchorage structure for anchoring a fall protection system to the surface, comprising:
a) placing the vacuum anchor assembly on the surface of the anchorage structure;
b) connecting the vacuum anchor assembly to a pressurized air source;
c) creating a vacuum internally within the vacuum anchor assembly from the pressurized air source;
d) securing the vacuum anchor assembly to the surface of the anchorage structure with suction resulting from the vacuum; and
e) opening a control valve between a venturi and a seal member to release the vacuum from the vacuum anchor assembly to allow the vacuum anchor assembly to be released from the surface of the anchorage structure.
17. The method of claim 16 , further comprising connecting the vacuum anchor assembly to a bottle containing 3,000 psi compressed air operatively connected to the anchor member, the bottle being incorporated into the vacuum anchor assembly.
18. The method of claim 16 , further comprising supplying the vacuum from the vacuum anchor assembly to an auxiliary vacuum anchor assembly and securing the auxiliary vacuum anchor assembly to the surface of the anchorage structure with suction resulting from the vacuum supplied by the vacuum anchor assembly.