US 12,454,956 B2
Gas seal column apparatus with sensor column
William Louis Kacin, Northport, NY (US)
Assigned to GSCD CORP., Miami, FL (US)
Filed by GSCD Corp., Miami, FL (US)
Filed on Apr. 16, 2025, as Appl. No. 19/180,539.
Application 19/180,539 is a continuation in part of application No. 19/020,152, filed on Jan. 14, 2025.
Application 19/020,152 is a continuation of application No. 18/819,249, filed on Aug. 29, 2024, granted, now 12,196,212, issued on Jan. 14, 2025.
Application 18/819,249 is a continuation in part of application No. 18/680,008, filed on May 31, 2024.
Application 18/680,008 is a continuation of application No. 18/410,703, filed on Jan. 11, 2024, granted, now 12,117,010, issued on Oct. 15, 2024.
Application 18/410,703 is a continuation in part of application No. 17/205,124, filed on Mar. 18, 2021, abandoned.
Prior Publication US 2025/0243866 A1, Jul. 31, 2025
This patent is subject to a terminal disclaimer.
Int. Cl. F04D 25/04 (2006.01); F04D 15/00 (2006.01); F04D 29/053 (2006.01)
CPC F04D 25/04 (2013.01) [F04D 15/0083 (2013.01); F04D 29/053 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A gas seal column apparatus comprising:
a vertically-oriented pump envelope including a gas seal column and a pump;
a pump drive motor configured to drive the pump envelope, the pump envelope and the pump drive motor configured to be sealed together;
a drive shaft encased by the pump envelope between the pump drive motor and the pump to couple the pump drive motor to the pump;
an inlet pipe configured to receive pressurized seal gas for introducing the seal gas into the pump envelope;
a discharge valve configured to enable the seal gas to exit the pump envelope; and
a seal inlet pipe and valve configured to permit or prevent or control an amount of seal gas to pass through a sealed motor housing.