US 12,013,191 B2
Coiled spring
Paul L. Smith, Katy, TX (US); Justin Vinson, Cypress, TX (US); and Gary P Katz, Houston, TX (US)
Assigned to Katz Water Tech, LLC, Houston, TX (US)
Filed by Katz Water Tech, LLC, Houston, TX (US)
Filed on Oct. 20, 2021, as Appl. No. 17/506,661.
Claims priority of provisional application 63/094,340, filed on Oct. 20, 2020.
Prior Publication US 2022/0120516 A1, Apr. 21, 2022
Int. Cl. F28F 13/12 (2006.01); F16F 1/04 (2006.01); F28F 1/40 (2006.01)
CPC F28F 1/40 (2013.01) [F16F 1/042 (2013.01); F28F 13/12 (2013.01); F16F 2230/36 (2013.01); F16F 2238/026 (2013.01)] 23 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a first coiled spring made from annealed material having an outer circumference and a first cross-section, the first cross-section having a greatest length in a predominantly horizontal direction;
a second coiled spring made from annealed material having an outer circumference and a second cross-section, the second cross-section having a greatest length in a predominantly vertical direction;
the first coiled spring and the second coiled spring are cohesively attached to form a spring assembly having a section of the spring assembly having an outer circumference and a third cross-section, the third cross-section greatest length in the predominantly horizontal direction is from the first spring and the greatest length in the predominantly vertical direction is from the second spring, further comprising a pipe wherein the spring assembly is inside the pipe, and wherein the spring assembly third cross-section is capable of fluid flow inside the pipe, wherein the cross-sectional area of the spring assembly is variable along its length.