Patent US3873135A successfully refreshed from Google Patents.
US3873135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waveguide boot
Assignee: Microflect Co Inc
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Filing: 1973-07-26
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Granted: 1975-03-25
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Expires: 1993-07-26
Abstract
Abstract A waveguide boot for sealing the opening through which a microwave transmission line enters a structure such as a building includes a pair of boot segments pivotally movable with respect to each other. The waveguide boot, which is engageable with a waveguide entry member, also includes a key member insertable in key slots formed in each segment for locking the segments together. The boot segments are formed of resilient material and each have channel-like recesses shaped to conform to the contour of a microwave transmission line. In use the boot segments are pivoted to a closed position around the microwave transmission line whereby the channel-like recesses envelop the transmission line. The boot segments are then locked together by inserting the key member in the key slots. Clamps can be provided around the locked boot to compress it against the transmission line and the waveguide entry member which the boot engages.
Inventors
- 👤 James S Kreitzberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:44
CPC Classifications
F; F16; F16L; F16L5/00; F16L5/02; F16L5/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
229 words
A waveguide boot for a microwave transmission line comprising first and second resilient boot segments having a junction portion whereat said segments are joined together for pivotal movement with respect to each other, each said boot segment having an outer perpheral surface oppositely disposed first and second base portions and axially extending side portions, said first and second segments each including an elongated channel extending from respective first base portions to respective second base portions, said waveguide boot further including locking means in each segment for clamping said segments together to prevent said pivotal movement, the elongated channel in each said segment being disposed intermediate said junction portion and the locking means in each said segment such that said segments when locked together cause sAid elongated channels to confront each other and said side portions of the segments to engage one another to form a closure, said locking means including a keyway comprising a keyway portion within each said segment at the edge of the segment remote from said junction portion, said locking means further including an elongated resilient key member having a stem portion insertable in said keyway portions for locking said segments together, said stem portion being disposed entirely within the outer peripheral surface of said boot segments, said stem portion and said keyway portions having interlocking means for holding said segments in engagement with one another.
Claim 2
Dependent Claim
229 words
A waveguide boot for a microwave transmission line comprising first and second resilient boot segments having a junction portion whereat said segments are joined together for pivotal movement with respect to each other, each said boot segment having an outer perpheral surface oppositely disposed first and second base portions and axially extending side portions, said first and second segments each including an elongated channel extending from respective first base portions to respective second base portions, said waveguide boot further including locking means in each segment for clamping said segments together to prevent said pivotal movement, the elongated channel in each said segment being disposed intermediate said junction portion and the locking means in each said segment such that said segments when locked together cause sAid elongated channels to confront each other and said side portions of the segments to engage one another to form a closure, said locking means including a keyway comprising a keyway portion within each said segment at the edge of the segment remote from said junction portion, said locking means further including an elongated resilient key member having a stem portion insertable in said keyway portions for locking said segments together, said stem portion being disposed entirely within the outer peripheral surface of said boot segments, said stem portion and said keyway portions having interlocking means for holding said segments in engagement with one another.
Claim 3
Dependent Claim
21 words
A waveguide boot as claimed in claim 1 wherein said confronting elongated channels in cross-section form a closure of elliptical shape.
Claim 4
Dependent Claim
71 words
A waveguide boot as claimed in claim 1 wherein at least one of the base portions of each said segment align when said segments are locked together, said aligned base portions defining a boot base surface, said boot base surface including an annular groove surrounding said closure, said annular groove being engageable with a waveguide entry member having an engaging portion of complementary cross-sectional size and shape with said annular groove.
Claim 5
Dependent Claim
59 words
A waveguide boot as claimed in claim 3 wherein said boot includes a clamping flange at the periphery of said boot base surface, said boot further including a clamping member for disposition on said clamping flange to clamp said waveguide boot to said entry member when the engaging portion of said entry member is engaged with said annular groove.
Claim 6
Dependent Claim
48 words
A waveguide boot as claimed in claim 1 wherein corresponding base portions of each segment align when said segments are locked together to define opposing base surfaces of said boot, one of said boot base surfaces including at least one recess extending toward the other boot base surface.
Claim 7
Dependent Claim
30 words
A waveguide boot as claimed in claim 5 further including a plurality of said recesses surrounding said closure, said boot further including web portions separating said recesses from each other.
Claim 8
Dependent Claim
43 words
A waveguide boot as claimed in claim 1 wherein said keyway portions extend from respective first base portions to respective second base portions of said segments and said key member when inserted in said keyway portions extend the entire length of said keyway.
Claim 9
Dependent Claim
50 words
A waveguide boot as claimed in claim 1 wherein said key member includes a flange at one end thereof for abutment against one of said base portions when said key member is fully inserted in said keyway portions, said abutment preventing further insertion of said key member in said keyway.
Claim 10
Dependent Claim
58 words
A waveguide boot as claimed in claim 1 wherein each said keyway portion is generally L-shaped in cross-section, said key member being generally U-shaped in cross-section with spaced leg portions, each spaced leg portion of said U-shaped key member engaging a leg of each said L-shaped keyway portion when said segments are locked together by said key member.
Claim 11
Dependent Claim
61 words
A waveguide boot as claimed in claim 4 wherein said closure is arranged to envelop a microwave transmission line and said boot material is polyurethane, said boot material being compressible from its original outer dimension at said clamping flanges by said clamping members to maintain a seal around said microwave transmission line and the engaging portion of said waveguide entry member.
References Cited (Backward Citations)
US2447697A
Cited
US2466076A
Cited
US2507535A
Cited
US3133753A
Cited
US3327211A
Cited
US3456965A
Cited
US3472536A
Cited
US3512805A
Cited
US3667782A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |