IP Library › Granted Patent US 12,260,991
Granted Patent B2
US 12,260,991 · App. 18/155,862 · Granted Mar 25, 2025

Hard start kit for multiple replacement applications

Inventors: Jerry Lee Waldrop (Bunnell, FL); Jonathan Coburn Charles (Ormond Beach, FL)
Assignee: AmRad Manufacturing, LLC
H01G2/16H01G2/10H02K11/0094
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Quick Facts
Patent No.
US 12,260,991
App. No.
18/155,862
Granted
Mar 25, 2025
Kind
B2
Abstract

A hard start capacitor replacement unit includes a capacitor container having a cover, a plurality of capacitors received within the container, each of said capacitors having a capacitance value, a common terminal mounted on the cover and electrically connected to a common terminal of each of said plurality of capacitors, a plurality of cover terminals mounted on the cover spaced apart from the common terminal and from each other, each cover terminal respectively electrically connected to one of the plurality of capacitors, a relay having contacts and being capable of opening and closing said contacts in response to a monitored condition of the motor, the relay having relay terminals, a fuse electrically connected to one of the relay terminals by a first wire wherein the fuse electrically disconnects the hard start capacitor replacement unit and the motor upon a failure, and a second wire electrically connecting one of the relay terminals and the motor, a third wire electrically connecting the common terminal and one of the relay terminals, a fourth wire electrically connecting one or more cover terminals to one of the relay terminals, wherein the contacts of the relay close to electrically connect one or more capacitors of the plurality of capacitors to the motor, and the contacts of the relay open to electrically disconnect the one or more capacitors of the plurality of capacitors from the motor.

Claims (50)

1. A hard start capacitor unit, comprising:

a capacitor container having a cover;

a plurality of capacitors received within the container, each of said capacitors having a capacitance value;

a common cover terminal mounted on the cover and electrically connected to a common terminal of each of said plurality of capacitors;

a plurality of capacitor cover terminals mounted on the cover spaced apart from the common cover terminal and from each other, each capacitor cover terminal is respectively electrically connected to one of the plurality of capacitors;

a relay having contacts and being capable of opening and closing said contacts in response to a condition, the relay having relay terminals, the relay being positioned external to the capacitor container;

a fuse electrically connected to a first relay terminal of the relay terminals by a first wire, wherein the fuse electrically disconnects the hard start capacitor unit upon a failure, the fuse being positioned external to the capacitor container;

a second wire electrically connecting the common terminal and the first relay terminal;

a third wire electrically connecting one or more capacitor cover terminals to a second relay terminal of the relay terminals; and

wherein the contacts of the relay close to electrically connect one or more capacitors of the plurality of capacitors to a motor, and the contacts of the relay open to electrically disconnect the one or more capacitors of the plurality of capacitors from the motor.

2. The hard start capacitor unit of claim 1 , wherein the fuse electrically disconnects the hard start capacitor unit from the motor upon a current exceeding a threshold.

3. The hard start capacitor of claim 2 , wherein the fuse electrically disconnects the hard start capacitor unit from the motor upon the current exceeding the threshold for a predetermined period of time.

4. The hard start capacitor unit of claim 3 , wherein the predetermined period of time is three seconds.

5. The hard start capacitor unit of claim 2 , wherein the threshold is at least 4 amperes.

6. The hard start capacitor unit of claim 2 , wherein the threshold is at least 10 amperes.

7. The hard start capacitor unit of claim 1 , wherein the fuse electrically disconnects the hard start capacitor unit from the motor upon a failure of the relay.

8. The hard start capacitor unit of claim 1 , wherein the fuse electrically disconnects the hard start capacitor from the motor upon a current exceeding 10 amperes for three seconds.

9. A hard start capacitor unit, comprising:

a capacitor container having a cover;

a plurality of capacitors received within the container, each of said capacitors having a capacitance value;

a common cover terminal mounted on the cover and electrically connected to a common terminal of each of said plurality of capacitors;

a plurality of capacitor cover terminals mounted on the cover spaced apart from the common cover terminal and from each other, each cover terminal is respectively electrically connected to one of the plurality of capacitors;

a relay having contacts and being capable of opening and closing said contacts in response to a condition, the relay having relay terminals, the relay being positioned internal to the capacitor container;

a fuse electrically connected to one of the relay terminals by a first wire, wherein the fuse electrically disconnects the hard start capacitor unit upon a failure;

a second wire electrically connecting the common cover terminal and one of the relay terminals; and

a third wire electrically connecting one or more capacitor cover terminals to one of the relay terminals; and

wherein the contacts of the relay close to electrically connect one or more capacitors of the plurality of capacitors to a motor, and the contacts of the relay open to electrically disconnect the one or more capacitors of the plurality of capacitors from the motor.

10. The hard start capacitor unit of claim 9 , wherein the fuse electrically disconnects the hard start capacitor unit from the motor upon a current exceeding a threshold.

11. The hard start capacitor of claim 10 , wherein the fuse electrically disconnects the hard start capacitor unit from the motor upon the current exceeding the threshold for a predetermined period of time.

12. The hard start capacitor unit of claim 11 , wherein the predetermined period of time is three seconds.

13. The hard start capacitor unit of claim 10 , wherein the threshold is at least 4 amperes.

14. The hard start capacitor unit of claim 10 , wherein the threshold is at least 10 amperes.

15. The hard start capacitor unit of claim 9 , wherein the fuse is positioned internal to the container.

16. The hard start capacitor unit of claim 9 , wherein the fuse is positioned external to the container.

17. A hard start capacitor unit, comprising:

a capacitor container having a cover;

a plurality of capacitors received within the container, each of said capacitors having a capacitance value;

a common cover terminal mounted on the cover and electrically connected to a common terminal of each of said plurality of capacitors;

a plurality of capacitor cover terminals mounted on the cover spaced apart from the common terminal and from each other, each cover terminal is respectively electrically connected to one of the plurality of capacitors;

a relay having contacts and being capable of opening and closing said contacts in response to a condition, the relay having relay terminals, the relay being positioned external to the capacitor container;

a fuse electrically connected to a first relay terminal of the relay terminals and electrically connected to the common cover terminal by a second wire, wherein the fuse electrically disconnects the hard start capacitor unit upon a failure;

a third wire electrically connecting the first relay terminal to a terminal of a motor;

and

a fourth wire electrically connecting one or more capacitor cover terminals to a second relay terminal of the relay terminals; and

wherein the contacts of the relay close to electrically connect one or more capacitors of the plurality of capacitors to the motor, and the contacts of the relay open to electrically disconnect the one or more capacitors of the plurality of capacitors from the motor.

18. The hard start capacitor unit of claim 17 , wherein the fuse electrically disconnects the hard start capacitor unit from the motor upon a current exceeding a threshold.

19. The hard start capacitor of claim 18 , wherein the fuse electrically disconnects the hard start capacitor unit from the motor upon the current exceeding the threshold for a predetermined period of time.

20. The hard start capacitor unit of claim 19 , wherein the predetermined period of time is three seconds.

21. The hard start capacitor unit of claim 18 , wherein the threshold is at least 4 amperes.

22. The hard start capacitor unit of claim 18 , wherein the threshold is at least 10 amperes.

Assignments (5)
MERGER Recorded Jul 1, 2026
From: HVAC SOUTH, LLC
To: RECTORSEAL, LLC
Reel/Frame 075152/0810 →
SECURITY INTEREST Recorded Nov 6, 2025
From: HVAC SOUTH, LLC
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 073482/0908 →
CORRECTIVE ASSIGNMENT TO CORRECT THE APPLICATION NUMBERS 15969608 TO 15989608 AND 16161205 TO 16171205 PREVIOUSLY RECORDED ON REEL 71738 FRAME 759. ASSIGNOR(S) HEREBY CONFIRMS THE CONFIRMATORY ASSIGNMENT. Recorded Oct 2, 2025
From: AMRAD MANUFACTURING, LLC
To: HVAC SOUTH, LLC
Reel/Frame 073080/0923 →
CONFIRMATORY ASSIGNMENT Recorded May 13, 2025
From: AMRAD MANUFACTURING, LLC
To: HVAC SOUTH, LLC
Reel/Frame 071738/0759 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 11, 2023
From: WALDROP, JERRY LEE; CHARLES, JONATHAN COBURN
To: AMRAD MANUFACTURING, LLC
Reel/Frame 063624/0235 →
Continuity (4)
Continuation 17731419 · Apr 28, 2022
Provisional Application 63282965 · Nov 24, 2021
Provisional Application 63182540 · Apr 30, 2021
Related Publication 20230261549A1 · Aug 17, 2023
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