US4861970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multipurpose calculator
Assignee: Individual
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Filing: 1989-01-17
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Granted: 1989-08-29
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Expires: 2009-01-17
Abstract
Abstract A multipurpose calculator includes a casing having one pair of side slots made at the front on both side walls for pivotally movable connection thereto of a movable cassette block, said movable cassette block being applicable to move within 180°, four elongated holes made on the front end wall through the body of the casing for setting therein of a scraper, a fluorescent marker, a flat type screw driver, and a cross type screw driver respectively. The movable cassette block comprises an illuminating apparatus to provide a solar power calculator with sufficient energy for operation. The said casing includes a rectangular recess for setting thereon of a solar calculator, a cutter and a steel tape respectively mounted on both sides for specific application. According to above-described arrangement, a calculator is practical for multipurpose application.
Inventors
- 👤 Kuo H. Hwang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:43
CPC Classifications
A; A45; A45C; A45C15/00; A45C11/00; A45C11/34; Y; Y10; Y10S; Y10S136/00; Y10S136/291
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
355 words
A multipurpose calculator, including: a casing body, having one pair of side slots respectively made in right and left side walls of said casing body at a front end wall thereof for pivotally movable connection thereto of a movable cassette block, a steel tape provided within said casing body near the right side wall, a snap-off cutter set within said casing body adjacent the left side wall, and four elongated holes made in the front end wall extending through the body of the casing for respectively setting therein screw drivers, a fluorescent marker and scraper, opening and closing of said elongated holes being controlled by said movable cassette block; said movable cassette block, being movably attached to said casing by means of one pair of linking rods through pivotal connection; an elongated slide slot made in the left sidewall of said casing for sliding therealong a pusher plate; said snap-off cutter being connected to and moved by the pusher plate to slide along said elongated slide slot; the pusher plate, being connected to a rear end of said cutter to move said cutter so as to slide along said elongated slide slot; said steel tape, being wind around a post arranged in said casing on the right side; an illuminating apparatus comprised of dry battery cells, bulbs, and mirror, said battery cells being operated to turn on said bulbs to illuminate, the illumination provided by said bulbs being reflected by said mirror onto a solar energy collector of said calculator disposed on said casing; a movable swinging-doors-switch, being mounted on said movable cassette block to protect said mirror, said dry battery cells and said bulbs, and to control turning-on/off of said bulbs; said fluorescent marker, being set in any one of said four elongated holes of said casing; said screw drivers, being set in any other said number of elongated holes of said casing; said scraper, being set in any remaining one of said elongated holes of said casing; and a resilient clip, being mounted on a back side of said casing, to let said multipurpose calculator be attached to an apparel of a user.
Claim 2
Dependent Claim
355 words
A multipurpose calculator, including: a casing body, having one pair of side slots respectively made in right and left side walls of said casing body at a front end wall thereof for pivotally movable connection thereto of a movable cassette block, a steel tape provided within said casing body near the right side wall, a snap-off cutter set within said casing body adjacent the left side wall, and four elongated holes made in the front end wall extending through the body of the casing for respectively setting therein screw drivers, a fluorescent marker and scraper, opening and closing of said elongated holes being controlled by said movable cassette block; said movable cassette block, being movably attached to said casing by means of one pair of linking rods through pivotal connection; an elongated slide slot made in the left sidewall of said casing for sliding therealong a pusher plate; said snap-off cutter being connected to and moved by the pusher plate to slide along said elongated slide slot; the pusher plate, being connected to a rear end of said cutter to move said cutter so as to slide along said elongated slide slot; said steel tape, being wind around a post arranged in said casing on the right side; an illuminating apparatus comprised of dry battery cells, bulbs, and mirror, said battery cells being operated to turn on said bulbs to illuminate, the illumination provided by said bulbs being reflected by said mirror onto a solar energy collector of said calculator disposed on said casing; a movable swinging-doors-switch, being mounted on said movable cassette block to protect said mirror, said dry battery cells and said bulbs, and to control turning-on/off of said bulbs; said fluorescent marker, being set in any one of said four elongated holes of said casing; said screw drivers, being set in any other said number of elongated holes of said casing; said scraper, being set in any remaining one of said elongated holes of said casing; and a resilient clip, being mounted on a back side of said casing, to let said multipurpose calculator be attached to an apparel of a user.
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) | 1992-08-28 | 1993-02-27 | 1993-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-28 | 1997-02-27 | 1997-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-28 | 2001-02-27 | 2001-08-29 | $7700.00 | Window Closed / Lapsed |