MICROWAVE OVEN DOOR SEALS
Embodiments of the present invention microwave oven door seal configurations that are designed to reduce power leakage of microwave ovens. The concepts provided may find particular use on-board aircraft or other passenger transport vehicles that have various types of communication equipment that operate at a similar frequency as microwave ovens, and for which interference should be reduced or eliminated.
1 . A microwave oven door seal, comprising:
a cavity seal and a door seal that cooperate with one another;
an absorbent material stage comprising (a) the cavity seal comprising a first groove and a second groove, each of the first and second grooves comprising an absorbent material contained therein and (b) the door seal comprising inner groove and an outer groove, each of the inner grooves and outer grooves comprising an absorbent material contained therein.
2 . The seal of claim 1 , further comprising a choke seal.
3 . The seal of claim 1 , further comprising a conductive gasket seal.
4 . The seal of claim 1 , wherein the absorbent material comprises a silicone material with a ferrite material contained therein.
5 . The seal of claim 1 , wherein the cavity seal further comprises a (i) first wall and a second wall that define the first groove and (ii) a third wall and the second wall that define the second groove.
6 . The seal of claim 5 , wherein the door seal further comprises (i) a raised wall and an inner flange that define the inner groove and (ii) an outer flange and the inner flange that define the outer groove.
7 . The seal of claim 6 , wherein the first wall abuts the absorbent material contained in the inner groove, and wherein the second wall abuts the absorbent material contained in the outer groove when the cavity seal and door seal are closed.
8 . The seal of claim 6 , wherein the inner flange abuts the absorbent material contained in the first groove, and wherein the outer flange abuts the absorbent material contained in the second groove when the cavity seal and door seal are closed.
9 . A microwave oven door seal for an aircraft microwave, comprising:
a cavity seal and a door seal that cooperate with one another;
a choke seal;
an conductive gasket seal;
an absorbent material stage seal comprising (a) the cavity seal comprising a first groove and a second groove, each of the first and second grooves comprising an absorbent material of silicone and ferrite contained therein and (b) the door seal comprising inner groove and an outer groove, each of the inner grooves and outer grooves comprising an absorbent material of silicone and ferrite contained therein.
10 . The seal of claim 9 , wherein the cavity seal further comprises a (i) first wall and a second wall that define the first groove and (ii) a third wall and the second wall that define the second groove.
11 . The seal of claim 10 , wherein the door seal further comprises (i) a raised wall and an inner flange that define the inner groove and (ii) an outer flange and the inner flange that define the outer groove.
12 . The seal of claim 11 , wherein the first wall abuts the absorbent material contained in the inner groove, and wherein the second wall abuts the absorbent material contained in the outer groove when the cavity seal and door seal are closed.
13 . The seal of claim 11 , wherein the inner flange abuts the absorbent material contained in the first groove, and wherein the outer flange abuts the absorbent material contained in the second groove when the cavity seal and door seal are closed.
14 . A microwave oven door seal, comprising:
a cavity seal and a door seal that cooperate with one another;
an absorbent material stage wherein the cavity seal and the door seal form a convoluted series of bends that force any escaping microwave energy to contact the bends at a low angle of incidence; wherein each of the bends comprises an absorbent material associated therewith.
15 . The seal of claim 14 , wherein the convoluted series of bends comprises (a) the cavity seal comprising a first groove and a second groove, each of the first and second grooves comprising an absorbent material contained therein and (b) the door seal comprising inner groove and an outer groove, each of the inner grooves and outer grooves comprising an absorbent material contained therein.