Antenna gasket for process housings

• US 7,969,380 B2
• Filed: 02/04/2011
• Issued: 06/28/2011
• Est. Priority Date: 03/26/2008
• Status: Active Grant

• Current Assignee: EMD Millipore Corporation (Merck & Co., Inc.)
• Original Assignee: Millipore Corporation
• Inventors: Burke, Aaron, Joens, Michael
• Primary Examiner(s): Nguyen; Hoang V
• Application Number:
  US13/020,914
• Publication Number:
  US 20110121946A1
• Time in Patent Office: 144 Days
• Field of Search: 343/872, 343/873, 343/906
• US Class Current: 343/872
• CPC Class Codes: B01D 2201/34 Seals or gaskets for filtering elements for removable closures, lids, caps or filter heads B01D2201/304
• CPC Class Codes: B01D 2201/56 Wireless systems for monitoring the filter
• CPC Class Codes: B01D 2271/02 Gaskets, sealings
• CPC Class Codes: B01D 29/52 in parallel connection
• CPC Class Codes: B01D 46/4245 Means for power supply or devices using electrical power in filters or filter elements
• CPC Class Codes: B01D 46/429 Means for wireless communication
• CPC Class Codes: H01Q 1/22 by structural association with other equipment or articles
• CPC Class Codes: H01Q 1/2216 used in interrogator/reader equipment
• CPC Class Codes: H01Q 1/40 Radiating elements coated with or embedded in protective material
• CPC Class Codes: H01Q 1/50 Structural association of antennas with earthing switches, lead-in devices or lightning protectors
• CPC Class Codes: H01Q 9/16 with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole H01Q9/44 takes precedence

Abstract

A method and apparatus for providing wireless communication and optionally power to the interior of a housing assembly is disclosed. In one embodiment, an antenna is molded within a gasket material, such as silicon, so as to be completely encapsulated. The gasket preferably includes at least one support arm, which holds the antenna toward the middle of the housing, so as to minimize interference from the metal housing. In further embodiments, an inductive coil is encapsulated in the gasket. An alternating current is passed through this coil to create a changing magnetic field, which can then be used to create electrical power in physically separate components, such as filtering elements. In certain embodiments, multiple loops are molded to correspond to multiple filtering elements within the housing.

Claims

1. A gasket, comprising:

a. A ring-shaped elastic material adapted to form a seal between two separable portions of a housing assembly;

b. an antenna, encapsulated in said elastic material, located within the region defined by said ring;

c. a support arm, extending inwardly from said ring, to hold said antenna; and

d. a conduit, molded in said gasket, electrically connecting said antenna to the exterior of said housing assembly.

2. The apparatus of claim 1, wherein said elastic material comprises a silicone-based material.

3. The apparatus of claim 2, wherein said antenna is positioned at the center of said ring.

4. The apparatus of claim 1, comprising a plurality of support arms extending inwardly from said ring.

5. The apparatus of claim 1, wherein said support arm comprises a silicone-based material.

6. The apparatus of claim 1, wherein said support arm comprises a thermal plastic.

7. The apparatus of claim 1, wherein said conduit is embedded in said support arm.

8. The apparatus of claim 1, further comprising a connector connected to said conduit on said exterior of said housing assembly.

9. The apparatus of claim 1, wherein said antenna comprises a dipole antenna.

10. A method of obtaining information from within a housing assembly having at least two separable portions, comprising:

a. Providing a gasket between said portions so that a portion of said gasket forms a seal between said separable portions;

b. Embedding an electrical conduit in said gasket;

c. Providing an antenna within the region defined by said housing assembly connected to the exterior of said housing assembly via said conduit;

d. Providing a device external to said housing, having communication capacities;

e. Connecting said device to said conduit so that said device is electrically connected to said antenna; and

f. Wirelessly transmitting information from within said housing assembly to said antenna, thereby allowing said information to be received by said device.

11. The method of claim 10, further comprising a second device within said housing assembly having wireless communications capabilities.

12. The method of claim 10, wherein said information is selected from the group consisting of temperature, pressure, manufacturer ID number, hours of operation, and the number of sterilization cycles performed.

13. The method of claim 11, wherein said second device is selected from the group consisting of pressure sensors, temperature sensors, concentration sensors, RFID tags, storage elements having communication capabilities and filter elements.

14. The method of claim 11, wherein said second device is affixed to a filter element.

15. The method of claim 11, wherein said second device is affixed to said housing assembly.

16. A method of insuring the sterilization of a filter element within an autoclave, comprising:

a. providing a temperature sensor within said autoclave;

b. Providing a gasket between separable portions of said autoclave, so that said gasket forms a seal between said separable portions;

c. Embedding an electrical conduit in said gasket;

d. Providing an antenna within said autoclave connected to the exterior of said autoclave via said conduit;

e. Providing a device external to said autoclave, having communication capacities;

f. Connecting said device to said conduit so that said device is electrically connected to said antenna; and

g. Transmitting temperature information from said temperature sensor to said antenna, thereby allowing the temperature within said autoclave to be monitored by said device.

17. An apparatus to provide power to one or more devices within a housing assembly having at least two separable portions, comprising

a. a power source to generate an alternating current;

b. a ring-shaped elastic material adapted to form a seal between said portions;

c. a number of coils equal to the number of devices, located within said ring and each coil encircling one of said one or more devices, adapted to receive said alternating current so as to generate a changing magnetic field;

d. A conduit, molded in said elastic material, electrically connecting said one or more coils to said power source.

18. The apparatus of claim 17, where said one or more devices comprise filtering elements.

19. A filtration system, comprising:

a. A housing assembly, having at least two separable portions;

b. An elastic material adapted to form a seal between two separable portions of a housing assembly;

c. an antenna, encapsulated in said elastic material, located within the region defined by said housing assembly;

d. a conduit, molded in said gasket, electrically connecting said antenna to the exterior of said housing assembly;

e. a filtering element; and

f. a device affixed to said filtering element, adapted to wirelessly communicate with said antenna.

20. The filtration system of claim 19, wherein said device is selected from the group consisting of a temperature sensor, a pressure sensor, a concentration sensor, an RFID tag, and a storage element.