Pipe hanger with lock tab washer

Patent metadata

Field	Value
Publication number	US-11560969-B2
Application number	US-202017023032-A
Country	US
Kind code	B2
Filing date	Sep 16, 2020
Priority date	Sep 17, 2019
Publication date	Jan 24, 2023
Grant date	Jan 24, 2023

Abstract

A lock tab washer, a pipe hanger, and a method of assembling a pipe hanger are disclosed. The lock tab washer can comprise a washer body, the washer body defining a first side and a second side opposite the first side, the washer body defining a hole therethrough; an edge tab extending from the first side of the washer body, the edge tab define a first section and a second section, the second section bent relative to the first section; a nut tab extending from the second side of the washer body, the nut tab bent relative to the washer body; and a wing extending from the nut tab, the wing bent relative to the nut tab.

First claim

That which is claimed is:

1. A pipe hanger comprising:
a suspension member configured to engage a pipe, the suspension member comprising a side edge and defining a hole through the suspension member;
a threaded rod extending through the hole;
a nut threaded on the threaded rod, the nut defining a circumferential side, the circumferential side defining a first face and a second face; and
a lock tab washer disposed on the threaded rod between the suspension member and the nut, the lock tab washer comprising a washer body, a first edge tab, a nut tab, and a wing extending from the nut tab, the first edge tab bent to fold over the side edge of the suspension member, the nut tab bent to fold over the first face of the circumferential side of the nut, the wing bent to fold over the second face of the circumferential side of the nut;
wherein:
a curvilinear bend relief notch is recessed into the washer body adjacent to the nut tab to facilitate bending the nut tab relative to the washer body;
the washer body defines a washer hole therethrough, the threaded rod extending through the washer hole;
the lock tab washer further comprises a second edge tab extending from the washer body;
the second edge tab is parallel with the first edge tab;
a gap is defined between the first edge tab and the second edge tab; and
a convex, arcuate edge portion of the washer body extends across the gap from the first edge tab to the second edge tab.

2. The pipe hanger of claim 1 , wherein the washer body defines a first side and a second side opposite the first side, the first edge tab extending from the first side of the washer body and the nut tab extending from the second side of the washer body.

3. The pipe hanger of claim 1 , wherein the suspension member comprises an upper clevis and a lower clevis, the upper clevis joined to the lower clevis by the threaded rod and the nut.

4. The pipe hanger of claim 3 , wherein the side edge of the suspension member comprises a side edge of the upper clevis, and wherein the first edge tab extends across the side edge of the upper clevis.

5. The pipe hanger of claim 1 , wherein:
the nut tab defines a first nut tab side edge and a second nut tab side edge opposite the first nut tab side edge;
the wing is a first wing extending from and bent relative to the first nut tab side edge; and
the lock tab washer further comprises a second wing extending from the second nut tab side edge, the second wing bent to fold over a third face of the circumferential side of the nut.

6. The pipe hanger of claim 1 , wherein a width of the lock tab washer at the curvilinear bend relief notch is greater than a width of the nut tab.

7. The pipe hanger of claim 1 , wherein the wing defines a curved distal edge that is distal to the nut tab.

Assignees

• Asc Eng Solutions Llc

Inventors

• Belen Jordan Cameron
• Mcnamara Matthew William
• Santos Jason F

Classifications

• F16L3/133

  and hanging from a pendant (F16L3/14 takes precedence) · CPC title

• F16L3/11 Primary

  and hanging from a pendant (F16L3/14 takes precedence) · CPC title

• F16B39/108 Primary

  with a locking washer under the nut or bolt head having at least one tongue or lug folded against the nut or bolt head, or against the object itself (F16B39/103 takes precedence) · CPC title

• F16L3/20

  allowing movement in transverse direction · CPC title

• F16B39/10

  by a plate, {spring, wire} or ring immovable with regard to the bolt or object {and mainly perpendicular to the axis of the bolt}(F16B39/08 takes precedence) · CPC title