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:
Jul. 11, 1978
Filed:
Jan. 24, 1977
Judson C Cole, Tulsa, OK (US);
Eldon W Morain, Broken Arrow, OK (US);
Other;
Abstract
An adjustable height sprinkler apparatus having three tubular portions telescopically received within each other. The base portion is buried vertically in the ground and connected to a source of water pressure at the lower end, the upper end being adjacent the earth's surface. A second tubular extension member is vertically positionable by telescopic displacement relative to the base member and includes a coupling for sealably retaining the extension member in the selected vertical position. A third tubular pop-up member is telescopically positioned in the extension member and slidable downwardly by gravity and displaced upwardly when water pressure is applied to the sprinkler, the pop-up member having an enlarged diameter portion at the upper end with means for attaching a sprinkler head. In the preferred embodiment the upper end of the tubular extension is in a plane displaced relative to the tubular axis and the lower surface of the enlarged portion of the pop-up member is in a similar displaced plane so that when water pressure ceases and the pop-up member falls downwardly, the planar surfaces engage each other to maintain a preselected angular relationship between the pop-up member and the extension member.