Patent US3738576A successfully refreshed from Google Patents.
Patent US5243355A successfully refreshed from Google Patents.
US5243355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiautomatic retractable antenna apparatus
Assignee: Motorola Solutions Inc
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Filing: 1992-11-13
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Granted: 1993-09-07
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Expires: 2012-11-13
Abstract
Abstract An antenna apparatus for a radiotelephone (100) comprises a shroud (207), an antenna (209) and releasable latch means (231, 219, 223, 229). The shroud (207) is movable between a first and a second position. The antenna is an extendable helical coil (209) having a shortened axial length when the shroud is moved to the first position and a lengthened axial length when the shroud is moved to the second position. The extendable helical coil (209) exerts biasing forces on the shroud (207) when the shroud is moved to the second position to urge the shroud (207) towards the first position. The releasable latch means, including a platform (205) having a flexible end portion (231) adapted for cooperative engagement with the shroud (207), latches the shroud (207) at the second position when the shroud (207) is moved to the second position and releases the shroud (207) from the second position, responsive to flexing the flexible end portion (231), permitting the biasing forces to return the shroud (207 ) to the first position.
Inventors
- 👤 Steven C. Emmert
- 👤 Kenneth W. Carlson
- 👤 Nicholas Mischenko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:02
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/08; H01Q1/088; H01Q1/12; H01Q1/22; H01Q1/24; H01Q1/241; H01Q1/242; H01Q1/243; H01Q1/244
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
136 words
An antenna apparatus comprising: a shroud moveable between at least a first and a second position; a first antenna portion having a first physical dimension when the shroud is moved to the first position and a second physical dimension when the shroud is moved to the second position, and exerting biasing forces on the shroud when the shroud is moved to the second position to urge the shroud towards the first position; and releasable latch means, including a platform having a flexible end portion adapted for cooperative engagement with the shroud, for latching the shroud at the second position when the shroud is moved to the second position and for releasing the shroud from the second position, responsive to flexing the flexible end portion, permitting the biasing forces to return the shroud to the first position.
Claim 2
Dependent Claim
136 words
An antenna apparatus comprising: a shroud moveable between at least a first and a second position; a first antenna portion having a first physical dimension when the shroud is moved to the first position and a second physical dimension when the shroud is moved to the second position, and exerting biasing forces on the shroud when the shroud is moved to the second position to urge the shroud towards the first position; and releasable latch means, including a platform having a flexible end portion adapted for cooperative engagement with the shroud, for latching the shroud at the second position when the shroud is moved to the second position and for releasing the shroud from the second position, responsive to flexing the flexible end portion, permitting the biasing forces to return the shroud to the first position.
Claim 3
Dependent Claim
31 words
An antenna apparatus in accordance with claim 1 further comprising means for restraining the shroud when the flexible end portion is flexed whereby the flexible end portion and the shroud disengage.
Claim 4
Dependent Claim
17 words
An antenna apparatus in accordance with claim 1 wherein the shroud substantially covers the first antenna portion.
Claim 5
Dependent Claim
22 words
An antenna apparatus in accordance with claim 1 wherein the first antenna portion further comprises a helix having a variable helical length.
Claim 6
Dependent Claim
28 words
An antenna apparatus in accordance with claim 1 further comprising means for limiting movement of the first antenna portion about a central axis of the first antenna portion.
Claim 7
Dependent Claim
32 words
An antenna apparatus in accordance with claim 1 further comprising a second antenna portion having a fixed physical dimension; and means for coupling the first antenna portion and the second antenna portion.
Claim 8
Dependent Claim
25 words
An antenna apparatus in accordance with claim 6 wherein the means for coupling further comprises means for releasably coupling the first and second antenna portions.
Claim 9
Dependent Claim
43 words
An antenna apparatus in accordance with claim 7 wherein the means for releasably coupling further comprises: a first connector coupled to the first antenna portion; and a second connector coupled to the second antenna portion and adapted for connecting to the first connector.
Claim 10
Dependent Claim
20 words
An antenna apparatus in accordance with claim 6 wherein the first and the second antenna portions are positioned in tandem.
Claim 11
Dependent Claim
19 words
An antenna apparatus in accordance with claim 6 wherein the shroud substantially covers the second portion of the antenna.
Claim 12
Dependent Claim
143 words
An antenna apparatus comprising: a shroud moveable between at least a first and a second position; an antenna having a first and a second portion, the first portion having a first physical dimension when the shroud is moved to the first position and a second physical dimension when the shroud is moved to the second position, and exerting biasing forces on the shroud when the shroud is moved to the second position to urge the shroud towards the first position, the second portion having a fixed physical dimension; means for releasably coupling the first antenna portion and the second antenna portion; and releasable latch means for latching the shroud at the second position when the shroud is moved to the second position and for releasing the shroud from the second position permitting the biasing forces to return the shroud to the first position.
Claim 13
Dependent Claim
143 words
An antenna apparatus comprising: a shroud moveable between at least a first and a second position; an antenna having a first and a second portion, the first portion having a first physical dimension when the shroud is moved to the first position and a second physical dimension when the shroud is moved to the second position, and exerting biasing forces on the shroud when the shroud is moved to the second position to urge the shroud towards the first position, the second portion having a fixed physical dimension; means for releasably coupling the first antenna portion and the second antenna portion; and releasable latch means for latching the shroud at the second position when the shroud is moved to the second position and for releasing the shroud from the second position permitting the biasing forces to return the shroud to the first position.
Claim 14
Dependent Claim
29 words
An antenna apparatus in accordance with claim 11 wherein the releasable latch means further comprises a platform having a flexible end portion adapted for cooperative engagement with the shroud.
Claim 15
Dependent Claim
32 words
An antenna apparatus in accordance with claim 12 further comprising means for restraining the shroud when the flexible end portion is flexed whereby the flexible end portion and the shroud become disengaged.
Claim 16
Dependent Claim
17 words
An antenna apparatus in accordance with claim 11 wherein the shroud substantially covers the first antenna portion.
Claim 17
Dependent Claim
22 words
An antenna apparatus in accordance with claim 11 wherein the first antenna portion further comprises a helix having a variable helical length.
Claim 18
Dependent Claim
22 words
An antenna apparatus in accordance with claim 11 further comprising means for limiting movement of the first antenna portion a central axis.
Claim 19
Dependent Claim
43 words
An antenna apparatus in accordance with claim 11 wherein the means for releasably coupling further comprises: a first connector coupled to the first antenna portion; and a second connector coupled to the second antenna portion and adapted for connecting to the first connector.
Claim 20
Dependent Claim
20 words
An antenna apparatus in accordance with claim 11 wherein the first and the second antenna portions are positioned in tandem.
Claim 21
Dependent Claim
19 words
An antenna apparatus in accordance with claim 11 wherein the shroud substantially covers the second portion of the antenna.
Claim 22
Dependent Claim
151 words
A wireless communication device comprising: radio circuitry means; and an antenna apparatus coupled to the radio circuitry means, including: a shroud moveable between at least a first and a second position; a first antenna portion having a first physical dimension when the shroud is moved to the first position and a second physical dimension when the shroud is moved to the second position, and exerting biasing forces on the shroud when the shroud is moved to the second position to urge the shroud towards the first position; and releasable latch means, including a platform having a flexible end portion adapted for cooperative engagement with the shroud, for latching the shroud at the second position when the shroud is moved to the second position and for releasing the shroud from the second position, responsive to flexing the flexible end portion, permitting the biasing forces to return the shroud to the first position.
Claim 23
Dependent Claim
151 words
A wireless communication device comprising: radio circuitry means; and an antenna apparatus coupled to the radio circuitry means, including: a shroud moveable between at least a first and a second position; a first antenna portion having a first physical dimension when the shroud is moved to the first position and a second physical dimension when the shroud is moved to the second position, and exerting biasing forces on the shroud when the shroud is moved to the second position to urge the shroud towards the first position; and releasable latch means, including a platform having a flexible end portion adapted for cooperative engagement with the shroud, for latching the shroud at the second position when the shroud is moved to the second position and for releasing the shroud from the second position, responsive to flexing the flexible end portion, permitting the biasing forces to return the shroud to the first position.
Claim 24
Dependent Claim
158 words
A wireless communication device comprising: radio circuitry means; and an antenna apparatus coupled to the radio circuitry means, including: a shroud moveable between at least a first and a second position; an antenna having a first and a second portion, the first portion having a first physical dimension when the shroud is moved to the first position and a second physical dimension when the shroud is moved to the second position, and exerting biasing forces on the shroud when the shroud is moved to the second position to urge the shroud towards the first position, the second portion having a fixed physical dimension; means for releasably coupling the first antenna portion and the second antenna portion; and releasable latch means for latching the shroud at the second position when the shroud is moved to the second position and for releasing the shroud from the second position permitting the biasing forces to return the shroud to the first position.
Claim 25
Dependent Claim
158 words
A wireless communication device comprising: radio circuitry means; and an antenna apparatus coupled to the radio circuitry means, including: a shroud moveable between at least a first and a second position; an antenna having a first and a second portion, the first portion having a first physical dimension when the shroud is moved to the first position and a second physical dimension when the shroud is moved to the second position, and exerting biasing forces on the shroud when the shroud is moved to the second position to urge the shroud towards the first position, the second portion having a fixed physical dimension; means for releasably coupling the first antenna portion and the second antenna portion; and releasable latch means for latching the shroud at the second position when the shroud is moved to the second position and for releasing the shroud from the second position permitting the biasing forces to return the shroud to the first position.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-09-06 | 1997-03-08 | 1997-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-09-06 | 2001-03-08 | 2001-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-09-06 | 2005-03-08 | 2005-09-07 | $7700.00 | Window Closed / Lapsed |