초록 ▼

A water pressure relief device includes a sample removal port to permit samples of water to be removed from the device. The device has an insert placed in a central chamber disposed generally above the sample removal port. The user inserts an implement such as a syringe into the sample removal port.

A water pressure relief device includes a sample removal port to permit samples of water to be removed from the device. The device has an insert placed in a central chamber disposed generally above the sample removal port. The user inserts an implement such as a syringe into the sample removal port. The tip of the syringe pushes the insert upwards against a pressure relief member, permitting fluid to flow into the base of the device in the vicinity of the sample removal port. The implement then removes or catches the fluid and withdraws the fluid from the pressure relief device.

대표청구항 ▼

A fluid pressure relief device having a housing comprising a fluid inlet, a fluid chamber, a fluid outlet, a sample removal port in fluid communication with said chamber, and pressure relief means movable with respect to said chamber for relieving fluid pressure in said chamber, the improvement comp

A fluid pressure relief device having a housing comprising a fluid inlet, a fluid chamber, a fluid outlet, a sample removal port in fluid communication with said chamber, and pressure relief means movable with respect to said chamber for relieving fluid pressure in said chamber, the improvement comprising: said housing having a central member fixed with respect to said housing and said central member having an upper portion, said upper portion in contact with said pressure relief means under normal pressure conditions, said central member having an open interior disposed above said sample removal port; and an insert placed within said open interior of said central member and movable with respect thereto between upper and lower positions, a portion of said insert contacting said pressure relief means when said insert is moved to said upper position; whereby insertion of an implement into said sample removal port pushes said insert into contact with said pressure relief means, pushing said pressure relief means away from said upper portion of said central member, permitting fluid to pass over said upper portion of said central member to said sample removal port, thereby allowing fluid to be selectively withdrawn from said sample removal port.