US3704424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-band memory assembly
Assignee: Motorola Solutions Inc
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Filing: 1971-08-19
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Granted: 1972-11-28
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Expires: 1991-08-19
Abstract
Abstract A waveband memory assembly in a dual band radio receiver includes a plurality of memory tabs mounted for pivotal movement on a slide plate; the latter being movable sidewise to two positions representing two radio waveband settings. Each memory tab is associated with a pushbutton selector, and includes a pair of wing-like projections extending outwardly from one end thereof and an elongated leg portion extending outwardly in the direction generally opposite thereto. Each of the memory tabs is pivotal to two positions representing the two waveband settings. Inward movement of the pushbutton moves a guide member depending therefrom into engagement with the elongated leg portion of a corresponding memory tab to move the slide plate to a position corresponding to that of the memory tab. Withdrawal of the pushbutton moves a finger-like projection on the pushbutton into engagement with the wing-like projections and ultimately into a recess therebetween. Subsequent thereto, the slide plate may be moved to a desired waveband setting. The memory tab is pivoted to the selected setting in accordance with the movement of the slide plate while the finger-like projection remains in the recess.
Inventors
- 👤 Jack C Flore
- 👤 M Richard Tennerstedt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:38
CPC Classifications
H; H03; H03J; H03J5/00; H03J5/24; H03J5/242; H03J5/02; H03J5/04; H03J5/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
271 words
In a dual band radio receiver including frequency selector means positionable to a plurality of radio frequency settings and a plurality of pushbuttons, each operable by movemEnt inwardly of said receiver to change the radio frequency setting of said frequency selector means to a predetermined radio frequency setting corresponding to said pushbutton and to a predetermined waveband, a waveband memory assembly comprising waveband selector means movable in a predetermined fashion with respect to the movement of said pushbutton to first and second positions representing the two wavebands, respectively, received by said radio receiver, a plurality of memory tabs, one of which is associated with each of said pushbuttons, mounted on said waveband selector means, each said memory tab having a pair of projections extending outwardly therefrom in opposite directions with a recess formed therebetween, and each said memory tab being mounted for pivotal movement on said waveband selector means to first and second positions representing said first and second wavebands, respectively, received by said radio receiver, finger means extending from each pushbutton selector for engaging said memory tab and being received in said recess between said projections upon withdrawing said pushbutton outwardly of said housing when selecting a predetermined radio frequency, said memory tab being movable to either of said first and second positions upon withdrawal of said pushbutton in accordance with the movement of said waveband selector means to a preselected waveband position, and a guide member on each said pushbutton for engagement with an associated memory tab to shift said waveband selector means upon inward movement of said pushbutton to a corresponding preselected position representing one of said wavebands.
Claim 2
Dependent Claim
271 words
In a dual band radio receiver including frequency selector means positionable to a plurality of radio frequency settings and a plurality of pushbuttons, each operable by movemEnt inwardly of said receiver to change the radio frequency setting of said frequency selector means to a predetermined radio frequency setting corresponding to said pushbutton and to a predetermined waveband, a waveband memory assembly comprising waveband selector means movable in a predetermined fashion with respect to the movement of said pushbutton to first and second positions representing the two wavebands, respectively, received by said radio receiver, a plurality of memory tabs, one of which is associated with each of said pushbuttons, mounted on said waveband selector means, each said memory tab having a pair of projections extending outwardly therefrom in opposite directions with a recess formed therebetween, and each said memory tab being mounted for pivotal movement on said waveband selector means to first and second positions representing said first and second wavebands, respectively, received by said radio receiver, finger means extending from each pushbutton selector for engaging said memory tab and being received in said recess between said projections upon withdrawing said pushbutton outwardly of said housing when selecting a predetermined radio frequency, said memory tab being movable to either of said first and second positions upon withdrawal of said pushbutton in accordance with the movement of said waveband selector means to a preselected waveband position, and a guide member on each said pushbutton for engagement with an associated memory tab to shift said waveband selector means upon inward movement of said pushbutton to a corresponding preselected position representing one of said wavebands.
Claim 3
Dependent Claim
61 words
A dual band radio receiver as claimed in claim 1 wherein each said memory tab includes an elongated leg portion extending outwardly therefrom in a direction generally opposite from that of said projections, said leg portion being positioned for sliding engagement with the guide member on a corresponding pushbutton, whereby the waveband selector means is moved to a corresponding band setting.
Claim 4
Dependent Claim
141 words
A dual band radio receiver as claimed in claim 2 wherein said waveband selector means includes a plate member movable in a direction transverse the direction of movement of said pushbutton, said memory tabs being mounted on said plate member for pivotal movement thereon, each said tab being pivotal in opposite directions to said first and second positions, respectively, and wherein each of the projections on each said memory tab includes a cam surface for engagement with said finger means upon withdrawal of said pushbutton from said radio receiver, whereby when said plate member is in a position representing a first one of said wavebands, opposite from the position of said memory tab, said memory tab is pivoted by the movement of said pushbutton outwardly to move said memory tab to a position corresponding to the position of said slide plate.
Claim 5
Dependent Claim
66 words
A dual band radio receiver as claimed in claim 3 wherein said guide member is wedge-shaped for engagement with one of the opposite side surfaces of said leg portion upon inward movement of said pushbutton depending upon the position of said memory tab, to move said slide plate sidewise to a position corresponding to the preselected waveband setting determined by the position of said memory tab.
Claim 6
Dependent Claim
84 words
A dual band radio receiver as claimed in claim 3 wherein each of said pair of projections on said memory tab is wing-like, and extends outwardly generally in the direction of inward movement of said pushbuttons and wherein said guide member and finger means are spaced from each other along said pushbutton, so that said finger means is adjacent the wing-like projections and said guide member is adjacent said elongated leg portion for engagement thereof upon outward and inward movement, respectively, of said pushbutton.
Claim 7
Dependent Claim
75 words
A dual band radio receiver as claimed in claim 4 wherein said pushbutton is normally in an intermediate position between said inward and outward positions and wherein said elongated leg portion is sufficiently Long to interfere with said guide member on said pushbutton when the latter is in said normal position, thereby to prevent a corresponding memory tab from being moved to the opposite waveband position inadvertently while said pushbutton is in said normal 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) | 1975-11-28 | 1976-05-29 | 1976-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-28 | 1980-05-29 | 1980-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-28 | 1984-05-29 | 1984-11-28 | $7700.00 | Window Closed / Lapsed |