The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 09, 2014

Filed:

Dec. 30, 2009
Applicant:

Ronald Scott Craig, Costa Mesa, CA (US);

Inventor:

Ronald Scott Craig, Costa Mesa, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 57/04 (2010.01);
U.S. Cl.
CPC ...
Abstract

A gearbox for an irrigation system can comprise a housing, a worm gear within the housing and a bull gear within the housing and configured to engage the worm gear. The housing can be configured to receive a removable cartridge. The cartridge can include a diaphragm and a vent. The diaphragm can define a chamber configured for expansion and contraction and configured to be positioned inside the housing to relieve pressure build-up within the housing. The vent can be configured to allow air to flow between the atmosphere and the chamber.


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