Alignment cam for non-circular retractable antenna
US7190311B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2004 |
| Grant date | Mar 13, 2007 |
| Priority date | — |
| Expiry date | Jul 6, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/244
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A retractable antenna (100) is provided that includes a body (106) having an orifice (204), a whip (104) retractably coupled to the body (106), at least one follower (200) disposed about the whip (104), and a cam (202) disposed about the orifice (204). The cam (202) is shaped such that the at least one follower (200) interacts with the cam (202) during retraction of the whip (104) so as to rotate the whip as necessary to align the whip in a rotational position that allows full retraction of the antenna. Also provided are an electronic communication device (102) that includes at least one such non-circular retractable antenna (100), and an alignment system for rotationally aligning an extendable portion of a non-circular retractable antenna (100) during retraction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.