IP Library › Granted Patent US 1,122,128
Granted Patent S1
US 1,122,128 · App. 29/806,227 · Granted Apr 14, 2026

Instrument for testing the roundness of the inner wall of a pipe or other hollow cylinder

Inventors: Shawn Hurla (Platteville, CO); Ryan Dwyer (Thornton, CO); Ray Lavallee (Mead, CO)
Assignee: Insulation Technology Corporation
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Quick Facts
Patent No.
US 1,122,128
App. No.
29/806,227
Granted
Apr 14, 2026
Kind
S1
Claims (1)

The ornamental design for an instrument for testing the roundness of the inner wall of a pipe or other hollow cylinder, as shown and described.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 24, 2025
From: HURLA, SHAWN, MR.; DWYER, RYAN, MR.; LAVALLEE, RAYMOND, MR.
To: INSULATION TECHNOLOGY CORPORATION
Reel/Frame 073022/0189 →
References Cited (37)
US 627280A · Stiles · 1899 [cited by examiner]
US 2143233A · Wallace · 1939 [cited by examiner]
US D174106S · Boppel · 1955 [cited by examiner]
US 2816364A · Fairfield · 1957 [cited by examiner]
US D199862S · Lowry · 1964 [cited by examiner]
US 4441288A · Feldman · 1984 [cited by examiner]
US 4843722A · Sattman · 1989 [cited by examiner]
US 5138867A · Nish · 1992 [cited by examiner]
US D337061S · Haggett · 1993 [cited by examiner]
US 5224274A · Blaiklock · 1993 [cited by examiner]
US 5350105A · Delalle · 1994 [cited by examiner]
US 5755418A · Kracke · 1998 [cited by examiner]
US 5884443A · Schimmelpfennig · 1999 [cited by examiner]
US 6109581A · Kracke · 2000 [cited by examiner]
US D516441S · Iida · 2006 [cited by examiner]
US D594735S · Hofer · 2009 [cited by examiner]
US D654384S · McDonald · 2012 [cited by examiner]
US D706653S · Willett · 2014 [cited by examiner]
US D716636S · McDonald · 2014 [cited by examiner]
US 8973323B1 · McDonald · 2015 [cited by examiner]
US 9145924B2 · Baba · 2015 [cited by examiner]
US D756816S · Langton · 2016 [cited by examiner]
US 9410795B2 · Baba · 2016 [cited by examiner]
US 9612109B2 · Baba · 2017 [cited by examiner]
US D808248S · Krombein · 2018 [cited by examiner]
US 10036622B2 · Myers · 2018 [cited by examiner]
US D889289S · Burge · 2020 [cited by examiner]
US D906798S · Moriya · 2021 [cited by examiner]
US D935910S · Turk · 2021 [cited by examiner]
US D951784S · Turk · 2022 [cited by examiner]
US D988154S · Timmerman · 2023 [cited by examiner]
US D989986S · Morales · 2023 [cited by examiner]
US 20150002836A1 · Baba · 2015 [cited by examiner]
US 20150275505A1 · Thompson · 2015 [cited by examiner]
US 20220099427A1 · McMath · 2022 [cited by examiner]
US 20230064475A1 · Hurla · 2023 [cited by examiner]
US 20230066920A1 · Al Moyaibed · 2023 [cited by examiner]