Magnetic coupler

• US 5,954,520 A
• Filed: 12/19/1996
• Issued: 09/21/1999
• Est. Priority Date: 12/19/1996
• Status: Expired due to Fees

• Current Assignee: Schmidt, William P.
• Original Assignee: Schmidt, William P.
• Inventors: Schmidt, William P.
• Primary Examiner(s): Bradley, Paula
• Assistant Examiner(s): Davis, Katrina
• Application Number:
  US08/770,735
• Time in Patent Office: 1,006 Days
• Field of Search: 439/39, 439/38, 439/40, 439/680, 439/271, 439/289
• US Class Current: 439/39
• CPC Class Codes: B60D 1/64 Couplings or joints therefor
• CPC Class Codes: H01R 13/2421 using coil springs
• CPC Class Codes: H01R 13/6205 Two-part coupling devices held in engagement by a magnet
• CPC Class Codes: H01R 13/64 Means for preventing incorrect coupling
• CPC Class Codes: H01R 2201/26 for vehicles

Abstract

A magnetic coupler for use in semi-trailer rigs includes a contact member and a receiving member, the contact member having at least one biased contact which seats in a seat formed in the receiving member, the seat having an electrical conductor disposed therewithin. A member has a peripheral ring of opposite magnetic polarities in order to ensure magnetic attraction therebetween. Cooperating projection and keyway may be formed on the peripheral rings to assure proper alignment between the contact member and the receiving member.

Claims

1. A magnetic coupler comprising:

(a) a contact member, the contact member including;

(1) a central body portion, the central body portion being a substantially planar member;

(2) at least one contact element, the at least one contact element being disposed in the central body portion;

(3) a peripheral magnetic ring, the peripheral magnetic ring being disposed around the periphery of the central body portion; and

(4) a separate sealing member, the separate sealing member interposing the peripheral ring and the central body portion;

(b) a receiving member, the receiving member including;

(1) a central body portion having a recess,

(2) an at least one means for receiving the at least one contact element, the at least one means for receiving the at least one contact element being provided in the recess of the central body portion;

(3) a peripheral magnetic ring of opposite polarity to the peripheral magnetic ring of the contact member, the peripheral magnetic ring being disposed around the periphery of the central body portion; and

(4) a separate sealing member, the separate sealing member being disposed about the periphery of the central body portion; and

wherein the peripheral magnetic ring of the contact member is of a first polarity and the peripheral magnetic ring of the receiving member is of a second polarity, further wherein the peripheral magnetic rings directly engage each other when coupled.

2. The magnetic coupler of claim 1 which further comprises:

(a) means for normally biasing the at least one contact element with the means for receiving.

3. The magnetic coupler of claim 2 wherein:

(a) the central body portion of the contact member has a plurality of apertures formed therein, the coupler further comprising;

(b) a contact element associated with each of the apertures, the contact element projecting through the apertures;

wherein there is an equal number of means for receiving formed in the receiving member for the number of contacts in the contact member; and

wherein there is an equal number of means for normally biasing each contact element for the number of contacts in the contact member.

4. The magnetic coupler of claim 1 which further comprises:

(a) means for aligning the contact member and the receiving member.

5. The magnetic coupler of claim 4 which further comprises:

(a) a projection disposed on one of the peripheral rings and a keyway formed on the other peripheral ring, the projection being insertable into the keyway to assure proper alignment between the contact member and the receiving member.

6. The magnetic coupler of claim 1 which further comprises:

(a) an electrical conductor disposed within the recess; and

wherein upon the contact member being disposed within the recess, electrical communication is established between the contact member and the receiving member.

7. A magnetic coupler comprising:

(a) a contact member, the contact member including;

(1) a central body portion, the central body portion being a substantially planar member;

(2) at least one contact element disposed in the central body portion;

(3) a peripheral magnetic ring, the magnetic ring being disposed around the periphery of the central body portion, and

(b) a receiving member, the receiving member including;

(1) a central body portion;

(2) at least one means for receiving the at least one contact element, the at least one means for receiving the at least one contact element being provided in the recess of the central body;

(3) a magnetic peripheral ring of opposite polarity to the magnetic peripheral ring of the contact member, the magnetic peripheral ring being disposed around the periphery of the central body; and

(c) an aligning device for aligning the contact member and the receiving member, the aligning device comprising;

at least one projection, the at least one projection disposed on one of the peripheral rings;

at least one keyway, the at least one keyway formed in the peripheral ring opposite that of the ring having the at least one projection disposed thereon to receive the projection for substantial alignment between the contact member and the receiving member.

8. The magnetic coupler of claim 7 which further comprises:

(a) means for normally biasing the at least one contact element into contact with the means for receiving.

9. The magnetic coupler of claim 8, wherein the central body portion of the contact member has a plurality of apertures formed therein, the central body having the at least one contact element associated with at least one of the apertures, the contact members projecting through the apertures.

10. The magnetic coupler of claim 7 which further comprises:

(a) an electrical conductor disposed within the recess, wherein upon the contact member being disposed within the recess, electrical communication is established between the contact member and the receiving member.

11. The magnetic coupler of claim 7, wherein the peripheral magnetic ring of the contact member is of a first polarity.

12. The magnetic coupler of claim 7, wherein the peripheral magnetic ring of the receiving member is of a second polarity.

13. A magnetic coupler comprising:

(a) a contact member, the contact member including;

(1) a central body portion, the central body portion being a substantially planar member;

(2) at least one contact element, the at least one contact element being disposed in the central body portion;

(3) a peripheral magnetic ring, the peripheral magnetic ring being disposed around the periphery of the central body portion; and

(4) a separate sealing member, the separate sealing member interposing the peripheral ring and the central body portion;

(b) a receiving member, the receiving member including;

(1) a central body portion;

(2) at least one means for receiving the at least one contact element, the at least one means for receiving the at least one contact element being provided in the recess of the central body portion;

(3) a peripheral magnetic ring of opposite polarity to the peripheral magnetic ring of the contact member, the peripheral magnetic ring being disposed around the periphery of the central body portion; and

(4) a sealing member, the sealing member being disposed about the periphery of the central body portion; and

(c) means for aligning the contact member and the receiving member;

wherein the peripheral magnetic rings directly engage each other when coupled.

14. The magnetic coupler of claim 13 wherein the means for aligning comprises:

a projection disposed on one of the peripheral rings and a keyway formed on the other peripheral ring, the projection being insertable into the keyway to assure proper alignment between the contact member and the receiving member.