Cartridge for in-line microwave warming apparatus
First Claim
1. A cartridge for conducting fluid through a microwave heating cavity operating at a selected frequency, said cartridge comprisinga tubing support includinga base portion having a substantially flat exterior surface,a bobbin portion having opposite ends, andmeans connecting one end of the bobbin portion to the base portion at said exterior surface so that the bobbin portion extends out from the base portion substantially perpendicular to said exterior surface;
- a length of tubing having opposite ends and being engaged around said bobbin portion to form a coil, said coil including tubing segments at opposite sides of the coil which extend generally perpendicular to said exterior surface, andfluid connectors mounted to the opposite ends of the length of tubing.
3 Assignments
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Accused Products
Abstract
A fluid flow cartridge for seating in an opening into a microwave heating cavity comprises a tubing support having an electrically conductive surface dimensioned to substantially close that opening and an elongated bobbin portion projecting from that surface. The cartridge also includes a selected length of tubing wound around the bobbin portion to form a coil, opposite end segments of the tubing extending from the coil through the conductive support surface and away from said support. Preferably, the coil has straight tubing segments on opposite sides of the coil spaced apart one quarter wavelength or integral multiple thereof at the operating frequency of the heating cavity.
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Citations
15 Claims
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1. A cartridge for conducting fluid through a microwave heating cavity operating at a selected frequency, said cartridge comprising
a tubing support including a base portion having a substantially flat exterior surface, a bobbin portion having opposite ends, and means connecting one end of the bobbin portion to the base portion at said exterior surface so that the bobbin portion extends out from the base portion substantially perpendicular to said exterior surface; -
a length of tubing having opposite ends and being engaged around said bobbin portion to form a coil, said coil including tubing segments at opposite sides of the coil which extend generally perpendicular to said exterior surface, and fluid connectors mounted to the opposite ends of the length of tubing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. Fluid flow apparatus for seating in an opening into a microwave heating cavity, said apparatus comprising
a tubing support, said support having an electrically conductive exterior surface dimensioned to substantially close said opening, and a bobbin affixed to and projecting from said conductive surface, said bobbin being substantially transparent to microwave radiation at the operating frequency of the cavity, and a selected length of tubing, said tubing including an intermediate segment engaged around said bobbin to form a coil and opposite end segments extending from the bobbin through said conductive surface, said tubing being of a dielectric material which is substantially transparent to microwave radiation at the operating frequency of the cavity.
Specification