Pengo corp11/15/2023 ![]() ![]() The arms and extensions have holes to receive bolts which also pass through individual clamps which cooperate to retain teeth in position. An extension fits on each arm is telescopic fashion so that it can be held in various positions, thus determining the diameter. 175-292 14 Claims ABSTRACT OF THE DISCLOSURE An adjustable boring head for earth augers, particularly adapted for horizontal boring, has a hub with radial arms. BENETTI By WALTER L.STURGEON ATTORNEY United States Patent US. ![]() screw type bits Augers with leading portion or with detachable partsĪDJUSTABLE BORING HEAD FOR EARTH AUGERS Filed 3 Sheets-Sheet 5 IN V EN TOR. E21B10/44- Bits with helical conveying portion, e.g.DEEP DRILLING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority claimed from US73690568A external-priority Application filed by Pengo Corp filed Critical Pengo Corp Application granted granted Critical Publication of US3508622A publication Critical patent/US3508622A/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links Original Assignee Pengo Corp Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number Inventor John G Benetti Walter L Sturgeon Current Assignee (The listed assignees may be inaccurate. Google Patents Adjustable boring head for earth augersĭownload PDF Info Publication number US3508622A US3508622A US3508622DA US3508622A US 3508622 A US3508622 A US 3508622A US 3508622D A US3508622D A US 3508622DA US 3508622 A US3508622 A US 3508622A Authority US United States Prior art keywords extension arm head tooth auger Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US3508622A - Adjustable boring head for earth augers ![]() © 2023 USPTO.US3508622A - Adjustable boring head for earth augers Any reliance you place on such information is therefore strictly at your own risk.Īll official trademark data, including owner information, should be verified by visiting the official USPTO website at This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law. The use of this site is at your own risk. While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only. Uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. 8 (6-YR) E-MAILEDĬASE ASSIGNED TO POST REGISTRATION PARALEGAL TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVEDĪTTORNEY/ AND/OR APPOINTEDĬOURTESY REMINDER - SEC. OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILEDĪSSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED NEW APPLICATION OFFICE SUPPLIED DATA ENTERED IN TRAM ![]()
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