US5367309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellular phone shield
Assignee: Individual
•
Filing: 1993-07-09
•
Granted: 1994-11-22
•
Expires: 2013-07-09
Abstract
Abstract A shielding device used on hand-held cellular phones comprises a substantially rectangular shield which extends adjacent to the antenna. A downwardly extending slide arm portion of the shield terminates in a substantially pointed end surface formed by the outer edge of the shield sloping inwardly to engage the inner edge of the slide arm, said outer edge having a notch on the exterior surface thereof. The device also includes a paddle arm portion extending perpendicular to the shield area and then downwardly to terminate in an enlarged paddle engaging the rear of the phone. The shield is mounted to a hand-held cellular phone with the shield area extending vertically upward adjacent to the antenna and the paddle arm extending over the top of the phone and terminating in the rear paddle and the paddle arm extending over the top of the phone. The shield is held in place by an O-ring which surrounds the phone and fits in the notch in the slide arm. The shield comprises polished aluminum while the slide arm and paddle arms are coated with plastic vinyl to enhance friction and prevent scratching of the phone surface. The shielding area deflects a majority of the radiation and simultaneously absorbs whatever is not deflected while physically blocking the user from actual contact with antenna when in use.
Inventors
- 👤 Richard Tashjian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:44
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/22; H01Q1/24; H01Q1/241; H01Q1/242; H01Q1/245; H04; H04B; H04B1/00; H04B1/38; H04B1/3827; H04B1/3833
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
196 words
A shielding device to protect a user from microwave energy emitted from a hand-held cellular phone having a top surface, rear surface and an antenna extending upwardly from the top surface thereof comprising: an upper shield portion extending upwardly from the top surface of the cellular phone adjacent to the antenna to form a barrier to deflect the energy from the antenna away from the user, an intermediate shield portion extending at an angle to the upwardly extending shield portion and along the top surface of the phone and then downwardly along the rear surface of the phone, terminating in an enlarged paddle area, a slide arm portion extending downwardly from the shield portion on one side thereof adjacent the paddle area side, said slide arm portion having an inner edge to engage the phone and an outer edge comprising a continuation of the shield portion, said slide arm outer edge having a notch and an inwardly sloping lower edge portion joining the slide arm inner edge, and an O-ring mounted about the phone and in engagement with the notch on the slide arm and about the paddle arm to maintain the shielding device in position.
Claim 2
Dependent Claim
196 words
A shielding device to protect a user from microwave energy emitted from a hand-held cellular phone having a top surface, rear surface and an antenna extending upwardly from the top surface thereof comprising: an upper shield portion extending upwardly from the top surface of the cellular phone adjacent to the antenna to form a barrier to deflect the energy from the antenna away from the user, an intermediate shield portion extending at an angle to the upwardly extending shield portion and along the top surface of the phone and then downwardly along the rear surface of the phone, terminating in an enlarged paddle area, a slide arm portion extending downwardly from the shield portion on one side thereof adjacent the paddle area side, said slide arm portion having an inner edge to engage the phone and an outer edge comprising a continuation of the shield portion, said slide arm outer edge having a notch and an inwardly sloping lower edge portion joining the slide arm inner edge, and an O-ring mounted about the phone and in engagement with the notch on the slide arm and about the paddle arm to maintain the shielding device in position.
Claim 3
Dependent Claim
34 words
A shielding device in accordance with claim 1 wherein: the upper shield portion comprises a polished aluminum surface to deflect radiation from the antenna away from the user and to absorb the remaining radiation.
Claim 4
Dependent Claim
37 words
A shielding device in accordance with claim 2 wherein: the slide arm portion, the intermediate shield portion, and the paddle portions are coated with a vinyl plastic to enhance friction and prevent marring of the phone surface.
Claim 5
Dependent Claim
33 words
A shielding device in accordance with claim 1 wherein: the upper shield portion extends vertically upward from the top surface of the phone at a distance of approximately 1/4 inch from the antenna.
Claim 6
Dependent Claim
52 words
A shielding device in accordance with claim 4 wherein: the intermediate shield portion comprises a paddle arm along one side of the shield portion extending perpendicular to the vertical shield portion along the top surface of the phone and then downwardly in engagement with the phone and terminates in an enlarged portion.
Claim 7
Dependent Claim
28 words
A shielding device in accordance with claim 1 wherein: the slide arm projects outwardly from the phone to shield the user from energy emitted from side mounted antennas.
Claim 8
Dependent Claim
28 words
A shielding device in accordance with claim 1 wherein: the slide arm portion and the intermediate shield portion including areas which may be bent to accomodate different phones.
Claim 9
Dependent Claim
25 words
A shielding device in accordance with claim 1 wherein: the shielding device may be reversed and secured to the phone for storage utilizing the O-ring.
Claim 10
Dependent Claim
46 words
A shielding device in accordance with claim 1 wherein: the intermediate shield portion comprises a downwardly extending portion which engages the rear of the phone to stabilize torsion of the device and flexion, and, the slide arm engages the side of the phone to prevent rotation.
Claim 11
Dependent Claim
23 words
A shielding device in accordance with claim 1 wherein: the upper shield portion extends upwardly physically blocking the user from contacting the antenna.
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) | 1997-11-21 | 1998-05-23 | 1998-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-11-21 | 2002-05-23 | 2002-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-11-21 | 2006-05-23 | 2006-11-22 | $7700.00 | Window Closed / Lapsed |