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.
Patent No.:
Date of Patent:
Oct. 18, 1994
Filed:
May. 04, 1993
Robert K Burgess, Sheridan, WY (US);
Thomas A Redle, Sheridan, WY (US);
Other;
Abstract
A winterizing system (10) for underground sprinkler systems which can be newly installed during the sprinkler system installation, or can be utilized as a retrofit design, having a single valve means (13) and a drive shaft (19) to allow winterization completely from the exterior of building structure (50). Drive shaft (19), which may be flexible for most retrofit installations, is mounted such that it is accessible from the exterior. Upon manipulation of drive shaft (19) inlet port (14) and drain port (16), with connected drain line (24), can be opened and closed by a technician without entrance into building structure (50). Additional features include backflow prevention devices, tamper-proof drive shaft keys, and special connectors.