Hydrant with improved drain mechanism
First Claim
Patent Images
1. A fire hydrant comprising:
- a hydrant barrel having;
(1) a nozzle for releasing water pressure; and
(2) a lower flanged opening arranged to be connected to a source of water pressure;
a main valve disposed within said hydrant barrel and operable to control water entering said hydrant barrel;
a drain passageway communicating the interior of the hydrant barrel with the exterior; and
a water diffuser, disposed relative to said drain passageway and receiving water therefrom, said water diffuser includes a permeable tube extending outwardly from said hydrant barrel and having a permeable structure disposed for transferring water laterally of said tube without said hydrant barrel.
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Abstract
A fire hydrant of the “dry” barrel type having an improved means of draining the barrel after the hydrant has been used. The hydrant is provided with a drain passageway communicating the interior of the hydrant barrel to the exterior. A diffuser is attached to the hydrant at the drain passageway and receives water therefrom. The diffuser eliminates the need for force flushing the drain passageway and the localized draining of the hydrant barrel, thus eliminating soil erosion in the vicinity of the hydrant. Furthermore, the diffuser protects the interior components of the hydrant from entrance of foreign matter.
50 Citations
25 Claims
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1. A fire hydrant comprising:
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a hydrant barrel having;
(1) a nozzle for releasing water pressure; and
(2) a lower flanged opening arranged to be connected to a source of water pressure;
a main valve disposed within said hydrant barrel and operable to control water entering said hydrant barrel;
a drain passageway communicating the interior of the hydrant barrel with the exterior; and
a water diffuser, disposed relative to said drain passageway and receiving water therefrom, said water diffuser includes a permeable tube extending outwardly from said hydrant barrel and having a permeable structure disposed for transferring water laterally of said tube without said hydrant barrel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A fire hydrant comprising:
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a hydrant barrel having;
(1) a nozzle for releasing water pressure; and
(2) a lower flanged opening arranged to be connected to a source of water pressure;
a main valve disposed within said hydrant barrel and operable to control water entering said hydrant barrel;
a drain passageway communicating the interior of said hydrant barrel with the exterior for draining water from said hydrant barrel;
an insert water diffuser, disposed within said drain passageway, said insert water diffuser is formed to include a permeable material and disposed within said drain passageway to reduce the rate of water flow through said drain passageway. - View Dependent Claims (16, 17, 18)
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19. A fire hydrant comprising:
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a hydrant barrel having;
(1) a nozzle for releasing water pressure; and
(2) a lower flanged opening arranged to be connected to a source of water pressure;
a main valve disposed within said hydrant barrel and operable to control water entering said hydrant barrel;
a drain passageway communicating the interior of the hydrant barrel with the exterior; and
a water diffuser disposed against the exterior of said hydrant barrel and covering said drain passageway, said water diffuser formed to include a permeable material and disposed across said drain passageway to reduce the rate of water flow through said drain passageway. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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Specification