US3576175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condition indicator
Assignee: HP Inc
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Filing: 1969-03-20
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Granted: 1971-04-27
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Expires: 1989-03-20
Abstract
Abstract A pushbutton which has a magnifying lens front houses an internal display flag operated by a cam follower. The cam follower in turn is operated by the axial movement of the pushbutton relative to the instrument housing containing the pushbutton. The magnifying lens permits words or symbols printed on the display flag and appearing behind the lens to be greatly magnified. The particular sets of words or symbols appearing behind the magnifying portion of the lens are greatly emphasized and appear more readily to the viewer in front of the instrument panel.
Inventors
- 👤 Lawrence A Gammill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:09
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/16; Y; Y10; Y10S; Y10S116/00; Y10S116/28
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
265 words
In a pushbutton assembly wherein the pushbutton has first and second positions and is operated through an aperture in a wall, a device for visually displaying said positions comprising: a housing adapted for movement between said first and second positions along an axis substantially perpendicular to said wall, said housing having an apertured side portion; a lens attached to an end of said housing, said lens having a magnifying portion and a reducing portion; a springlike member having a first end secured in said housing, a second flag-shaped end disposed in said housing adjacent to said lens, and a central portion having a camming surface extending through the aperture in the side portion of said housing; said flag-shaped end having first and second indicia-bearing portions which are simultaneously displayed through said lens; said first and second indicia-bearing portions being moved into position for display through the magnifying and reducing portions of said lens, respectively, by the engagement of said camming surface with the edge of the aperture of said wall when the pushbutton is moved into said first position, thereby to emphasize the display of said first indicia-bearing portion and deemphasize the display of said second indicia-bearing portion; and said second and first indicia-bearing portions being moved into position for display through the magnifying and reducing portions of said lens, respectively by the disengAgement of said camming surface from the edge of the aperture of said wall when the pushbutton is moved into said second position, thereby to emphasize the display of said second indicia-bearing portion and deemphasize the display of said first indicia-bearing portion.
Claim 2
Dependent Claim
265 words
In a pushbutton assembly wherein the pushbutton has first and second positions and is operated through an aperture in a wall, a device for visually displaying said positions comprising: a housing adapted for movement between said first and second positions along an axis substantially perpendicular to said wall, said housing having an apertured side portion; a lens attached to an end of said housing, said lens having a magnifying portion and a reducing portion; a springlike member having a first end secured in said housing, a second flag-shaped end disposed in said housing adjacent to said lens, and a central portion having a camming surface extending through the aperture in the side portion of said housing; said flag-shaped end having first and second indicia-bearing portions which are simultaneously displayed through said lens; said first and second indicia-bearing portions being moved into position for display through the magnifying and reducing portions of said lens, respectively, by the engagement of said camming surface with the edge of the aperture of said wall when the pushbutton is moved into said first position, thereby to emphasize the display of said first indicia-bearing portion and deemphasize the display of said second indicia-bearing portion; and said second and first indicia-bearing portions being moved into position for display through the magnifying and reducing portions of said lens, respectively by the disengAgement of said camming surface from the edge of the aperture of said wall when the pushbutton is moved into said second position, thereby to emphasize the display of said second indicia-bearing portion and deemphasize the display of said first indicia-bearing portion.
Claim 3
Dependent Claim
96 words
A device according to claim 1 wherein the reducing portion of said lens is divided into two reducing sections respectively adjacent to opposite sides of said magnifying portion, said second indicia-bearing portion being moved into position for display through one of said two reducing sections by the engagement of said camming surface with the edge of the aperture of said wall, and said first indicia-bearing portion being moved into position for display through the other of said two reducing sections by the disengagement of said camming surface from the edge of the aperture of said wall.
Claim 4
Dependent Claim
30 words
A device according to claim 1 further including detent means secured to said wall for maintaining said pushbutton in either of said first and second positions relative to said wall.
Claim 5
Dependent Claim
16 words
A device according to claim 1 wherein said lens forms the front portion of said pushbutton.
References Cited (Backward Citations)
US1763225A
Cited
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Cited
GB968276A
Cited
US3084659A
Cited
US3312794A
Cited
US3250887A
Cited
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Cited
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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) | 1974-04-26 | 1974-10-26 | 1975-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-26 | 1978-10-26 | 1979-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-26 | 1982-10-26 | 1983-04-27 | $7700.00 | Window Closed / Lapsed |