Patent US4786758A successfully refreshed from Google Patents.
US4786758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door shield for shielded enclosure
Assignee: ETS Lindgren Inc
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Filing: 1986-11-14
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Granted: 1988-11-22
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Expires: 2006-11-14
Abstract
Abstract A shield for the gap surrounding the door of an enclosure shielded against electromagnetic interference (EMI). The shield includes an elongated base having angularly related mounting and support flange portions adjustable by deformation to tailor the base to the gap. The mounting flange portion is adjustably clamped to the door face to hold the support flange portion in the gap. A finger assembly includes numerous fingers with first ends fixed to the base, second ends slidable on the support flange portion and contact portions engageable with the door frame.
Inventors
- 👤 Stanley J. Zielinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:04
CPC Classifications
H; H05; H05K; H05K9/00; H05K9/0007; H05K9/0015; H05K9/0016
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
206 words
An electromagnetic interference shielded enclosure comprising relatively movable door and door frame members defining a gap between said relatively movable members and a shield for said gap including: an elongated base member of electrically conductive material including a mounting flange portion and a support flange portion extending at an angle from said mounting flange portion; said mounting flange portion being mountable upon a first of said relatively movable members to hold said support flange portion in the gap between the relatively movable members; a finger contact member permanently attached to said base member and including a plurality of resilient electrically conductive fingers arrayed along the length of said base member to establish electrical contact between the relatively movable members; each finger having spaced first and second end segments in engagement with said support flange portion and a contact segment between said end segments engageable with the second of said relatively movable members; the first of said end segments of each finger being fixed to said base member and the second of said end segments being slidable on said support flange portion; and connecting portions joining the second end segments of said fingers to limit the freedom of movement of each finger relative to the other fingers.
Claim 2
Dependent Claim
206 words
An electromagnetic interference shielded enclosure comprising relatively movable door and door frame members defining a gap between said relatively movable members and a shield for said gap including: an elongated base member of electrically conductive material including a mounting flange portion and a support flange portion extending at an angle from said mounting flange portion; said mounting flange portion being mountable upon a first of said relatively movable members to hold said support flange portion in the gap between the relatively movable members; a finger contact member permanently attached to said base member and including a plurality of resilient electrically conductive fingers arrayed along the length of said base member to establish electrical contact between the relatively movable members; each finger having spaced first and second end segments in engagement with said support flange portion and a contact segment between said end segments engageable with the second of said relatively movable members; the first of said end segments of each finger being fixed to said base member and the second of said end segments being slidable on said support flange portion; and connecting portions joining the second end segments of said fingers to limit the freedom of movement of each finger relative to the other fingers.
Claim 3
Dependent Claim
38 words
A shielded enclosure as defined in claim 1, said finger contact member comprising a single elongated strip of metal, the fingers being parallel to one another and each extending generally perpendicular to the longitudinal axis of the strip.
Claim 4
Dependent Claim
33 words
A shielded enclosure as defined in claim 2, said strip including a continuous web element integral with the first end segments of said fingers, said web element being secured to said base member.
Claim 5
Dependent Claim
18 words
A shielded enclosure as defined in claim 3, said web element being secured to said support flange portion.
Claim 6
Dependent Claim
34 words
A shielded enclosure as defined in claim 1, each finger being generally arch shaped with said end segments forming the bases of the arch and said contact segment forming the peak of the arch.
Claim 7
Dependent Claim
48 words
A shielded enclosure as defined in claim 1, said base member being generally L-shaped throughout its length with said mounting and support flange portions forming the legs of the L, said mounting flange portion being mountable to the face of said one relatively movable member adjacent its edge.
Claim 8
Dependent Claim
39 words
A shielded enclosure as defined in claim 6, further comprising a clamp member engageable with said mounting flange portion to hold said mounting flange portion in a selected position relative to the edge of the second relatively movable member.
Claim 9
Dependent Claim
29 words
A shielded enclosure as defined in claim 1, said base member being adjustable to vary said angle of said flange portions in accordance with the configuration of the gap.
Claim 10
Dependent Claim
19 words
A shielded enclosure as defined in claim 8, said base member being formed of a deformable substantially non-resilient material.
Claim 11
Dependent Claim
177 words
An electromagnetic interference shielded enclosure comprising relatively movable door and door frame members defining a gap between said members, and a shield for said gap including: an elongated base of electrically conductive material including a mounting flange portion and a support flange portion extending at an angle from said mounting flange portion; said mounting flange portion being mountable upon a first of said members to hold said support flange portion in the gap between the members; and a plurality of resilient electrically conductive fingers arrayed along the length of said base to establish electrical contact between the members; each fingers having spaced first and second end segments in engagement with said support flange portion and a contact segment between said end segments engageable with the second of said members; the first of said end segments of each finger being fixed to said base and the second of said end segments being slidable on said support flange portion said base being adjustable to vary said angle of said flange portions in accordance with the configuration of the gap.
Claim 12
Dependent Claim
177 words
An electromagnetic interference shielded enclosure comprising relatively movable door and door frame members defining a gap between said members, and a shield for said gap including: an elongated base of electrically conductive material including a mounting flange portion and a support flange portion extending at an angle from said mounting flange portion; said mounting flange portion being mountable upon a first of said members to hold said support flange portion in the gap between the members; and a plurality of resilient electrically conductive fingers arrayed along the length of said base to establish electrical contact between the members; each fingers having spaced first and second end segments in engagement with said support flange portion and a contact segment between said end segments engageable with the second of said members; the first of said end segments of each finger being fixed to said base and the second of said end segments being slidable on said support flange portion said base being adjustable to vary said angle of said flange portions in accordance with the configuration of the gap.
Claim 13
Dependent Claim
19 words
A shielded enclosure as claimed in claim 10, said base member being formed of a deformable substantially non-resilient material.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-11-22 | 1992-05-23 | 1992-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-22 | 1996-05-23 | 1996-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-22 | 2000-05-23 | 2000-11-22 | $7700.00 | Window Closed / Lapsed |