IP Library Granted Patent US 12,438,346
Granted Patent B2
US 12,438,346 · App. 19/065,489 · Granted Oct 7, 2025

Vacuum bottle housing

Inventors: Dean Carnell Sanders (Clements, CA); Elliott James Gist (Modesto, CA)
Assignee: Inertial Engineering and Machine Works, Inc.
H02B13/0354H01H33/662H01H33/66207H01H33/664H01H33/666H01H33/6664H02H7/268H01H2033/6623H01H2033/6665H01H2239/05
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Quick Facts
Patent No.
US 12,438,346
App. No.
19/065,489
Granted
Oct 7, 2025
Kind
B2
Abstract

An underarm gang operated vacuum break switch (underarm switch) has an electrically live portion under a mounting arm, which provides advantages over the standard vacuum break switch, which have the electrically live portion above the mounting arm. Because the non-electrified mounting arm is above the electrified portion, the underarm switch is safer for perching birds and other wildlife. The nature of the underarm switch also provides other benefits including a disconnect blade that when opened creates a visual gap to ensure electrical discontinuity along with a safety locking arm tied to deactivating the underarm switch. Adding to the safety measures is a visual indicator that shows an electrician when the switch is live and safe to open the disconnect blade. Other safety measures include a shock absorber assembly and inertia slowing mass protecting electrical contacts within the vacuum break switch from failing.

Claims (36)

1. A vacuum bottle housing comprising:

a rigid cylinder extending between a first end and a second end, the rigid cylinder comprising: a first flange that is separated from a second flange via a central cylinder body having a body diameter that is smaller than a flange diameter of the first and the second flange,

a first face defining the first end and a second face defining the second end,

the first face including the first flange and the second face including the second flange,

a circular channel extending concentrically through the rigid cylinder, the first face and the second face;

an ice and water shield defining a core encapsulating at least 70% of the rigid cylinder between the faces; and

a plurality of spaced apart annular shaped sheds each extending outwardly from the core.

2. The vacuum bottle housing of claim 1 , wherein the ice and water shield comprises nine sheds.

3. The vacuum bottle housing of claim 1 , wherein each of the sheds alternate between a first sized shed and a second sized shed, the first sized shed has a first shed outer diameter greater than a second shed outer diameter the second sized shed.

4. The vacuum bottle housing of claim 3 , wherein the first shed outer diameter greater is between 1.7 inches and 2.5 inches in diameter and the 1.9 inches and the second shed outer diameter is between 1.2 inches and 2.0 inches in diameter.

5. The vacuum bottle housing of claim 1 , wherein the rigid cylinder is fiberglass.

6. The vacuum bottle housing of claim 1 , wherein the ice and water shield is silicone.

7. The vacuum bottle housing of claim 6 , wherein the ice and water shield is molded to the rigid cylinder.

8. The vacuum bottle housing of claim 1 , wherein the circular channel has a channel diameter that is between 0.8 inches and 1.5 inches in diameter, the central cylinder body having a body diameter between 1 inch and 1.8 inches, the central cylinder body having a body length of between 1 inch and 1.6 inches, the flanges having a flange length of between 0.25 inches and 0.55 inches.

9. The vacuum bottle housing of claim 1 , wherein each of the flanges having a flange length that is between 25% and 35% of a body length of the central cylinder body.

10. The vacuum bottle housing of claim 1 , wherein the circular channel is configured to accommodate a urethane insulator, the urethane insulator configured to interface a vacuum bottle comprising a dynamic electrical contact and a fixed electrical contact.

11. The vacuum bottle housing of claim 1 further comprising a plurality of threaded bolt receiving apertures in the first face and the second face.

12. A vacuum bottle housing arrangement comprising:

a rigid cylinder comprising a first flange at a first end that is separated from a second flange a second end via a central cylinder body having a body diameter that is smaller than a flange diameter of the first and the second flange,

a first face, which includes a portion of the first flange, defining the first end and a second face, which includes a portion of the second flange, defining the second end,

a vacuum bottle channel, configured to receive a vacuum bottle switch, extending concentrically through the rigid cylinder, the first face and the second face;

an ice and water shield encapsulating at least 70% of the rigid cylinder between the faces,

the ice and water shield comprising a plurality of spaced apart annular shaped sheds each extending outwardly from the rigid cylinder.

13. The vacuum bottle housing arrangement of claim 12 , wherein each of the sheds alternate between a first sized shed and a second sized shed, the first sized shed has a first shed outer diameter that is greater than a second shed outer diameter of the second sized shed.

14. The vacuum bottle housing arrangement of claim 13 , wherein the second shed outer diameter is 85%+/−10% of the first shed outer diameter.

15. The vacuum bottle housing arrangement of claim 12 , wherein the ice and water shield is molded to the rigid cylinder.

16. The vacuum bottle housing arrangement of claim 12 , wherein each of the flanges having a flange length that is between 25% and 35% of a body length of the central cylinder body.

17. The vacuum bottle housing arrangement of claim 12 , wherein the circular channel is configured to accommodate a urethane insulator, the urethane insulator configured to interface a vacuum bottle comprising a dynamic electrical contact and a fixed electrical contact.

18. The vacuum bottle housing arrangement of claim 12 further comprising a plurality of threaded bolt receiving apertures in the first face and the second face.

19. A vacuum bottle housing apparatus comprising:

a rigid cylinder shaped like a dumbbell with a pair of flanges on either end of a central cylinder body having a body diameter that is smaller than a flange diameter of the flanges;

a vacuum bottle channel extending concentrically and uniformly through the rigid cylinder and the ends,

each of the flanges having a flange length that is between 25% and 35% of a body length of the central cylinder body; and

an ice and water shield encapsulating at least 70% of the rigid cylinder between the ends,

the ice and water shield further comprising a plurality of spaced apart annular shaped sheds each extending outwardly from the rigid cylinder.

20. The vacuum bottle housing apparatus of claim 19 , wherein the ice and water shield is molded to the rigid cylinder.

Assignments (6)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 5, 2026
From: INERTIA ENGINEERING AND MACHINE WORKS, LLC., A DELAWARE LIMITED LIABILITY COMPANY
To: MACLEAN POWER, LLC
Reel/Frame 073981/0735 →
NUNC PRO TUNC ASSIGNMENT Recorded Mar 2, 2026
From: INERTIA ENGINEERING AND MACHINE WORKS, LLC., A CALIFORNIA LIMITED LIABILITY COMPANY
To: INERTIA ENGINEERING AND MACHINE WORKS, LLC, A DELAWARE LIMITED LIABILITY COMPANY
Reel/Frame 073944/0804 →
SECURITY INTEREST Recorded Feb 27, 2026
From: MACLEAN POWER, L.L.C.; MACLEAN SENIOR INDUSTRIES, L.L.C.; INERTIA ENGINEERING AND MACHINE WORKS, LLC; ALLIED BOLT, LLC; ALLIED BOLT PRODUCTS, LLC; ROYAL SWITCHGEAR MANUFACTURING COMPANY, LLC
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 074988/0484 →
SECURITY INTEREST Recorded Feb 27, 2026
From: MACLEAN POWER, L.L.C.; MACLEAN SENIOR INDUSTRIES, L.L.C.; INERTIA ENGINEERING AND MACHINE WORKS, LLC; ALLIED BOLT, LLC; ALLIED BOLT PRODUCTS, LLC; ROYAL SWITCHGEAR MANUFACTURING COMPANY, LLC
To: UBS AG, STAMFORD BRANCH, AS COLLATERAL AGENT
Reel/Frame 074988/0544 →
SECURITY INTEREST Recorded Feb 27, 2026
From: MACLEAN POWER, L.L.C.; MACLEAN SENIOR INDUSTRIES, L.L.C.; INERTIA ENGINEERING AND MACHINE WORKS, LLC; ALLIED BOLT, LLC; ALLIED BOLT PRODUCTS, LLC; ROYAL SWITCHGEAR MANUFACTURING COMPANY, LLC
To: BARCLAYS BANK PLC, AS COLLATERAL AGENT
Reel/Frame 074988/0661 →
NUNC PRO TUNC ASSIGNMENT Recorded Feb 18, 2026
From: INERTIA ENGINEERING AND MACHINE WORKS, INC.
To: INERTIA ENGINEERING AND MACHINE WORKS, LLC, A CALIFORNIA LIMITED LIABILITY COMPANY
Reel/Frame 073825/0147 →