Johnathan Steven Colvin

US Patent:

20120145251, Jun 14, 2012

Filed:

Dec 8, 2011

Appl. No.:

13/314798

Inventors:

Ronald B. Robol - Sanford NC, US
Daniel J. Hruby - Sanford NC, US
Johnathan S. Colvin - Cameron NC, US

International Classification:

E04H 4/06
F16K 24/00
F16K 17/04

US Classification:

137 14, 4504, 4509, 137526

Abstract:

Embodiments of the invention provide a pumping system and a discharge vacuum relief valve for use in a hydraulic system including a safety vacuum release system pump to circulate water in a swimming pool and/or a spa. The hydraulic system includes one or more check valves located on a discharge side of the safety vacuum release system pump. The discharge vacuum relief valve is capable of venting a vacuum at the discharge side of the safety vacuum release system pump during a vacuum event at a suction side of the safety vacuum release system pump.

US Patent:

20160138727, May 19, 2016

Filed:

Dec 18, 2015

Appl. No.:

14/974206

Inventors:

- Sanford NC, US
Daniel J. Hruby - Sanford NC, US
Johnathan Steven Colvin - Cameron NC, US

International Classification:

F16K 17/04
F04B 53/06
F04B 53/10
F16K 24/04

Abstract:

A discharge vacuum relief valve kit to provide vacuum relief for a SVRS pump in a hydraulic system is provided. The discharge vacuum relief valve kit includes a vacuum vent tube including a first end and a second end, a discharge vacuum relief valve coupled to the first end of the vacuum vent tube, and a vacuum vent screen coupled to the second end of the vacuum vent tube. The discharge vacuum relief valve is coupled to a drain plug opening of the SVRS pump.