Patent US3883970A successfully refreshed from Google Patents.
US3883970A
Expired / Lapsed
US
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Work-shift indicator
Assignee: Individual
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Filing: 1973-12-14
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Granted: 1975-05-20
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Expires: 1993-12-14
Abstract
Abstract A work-shift indicator mostly printed on paper or cardboard having: a calender-like portion, indicating the months, dates and days of the week in repetitively arranged work-shift cycles cycles of 8 weeks (56 linearly arranged date spaces exampled): and beginning hours of the shifts of each group on each day being also linearly and repetitively indicated - in spaces linearly and indicatingly connected with said date spaces, each work-shifthour space thus being linearly indicated by a space representing a month, date and day of the week. The work-shift groups are indicated by number and color and optionally by goemetric symbols, of aid to the color-blind. A space is provided for names or representative numbers of the workers. An optional, preferred form of the invention has the indicia linearly and repetitively printed on the two sides of a card to be carried in a wallet or purse and has a revolvable band, encompassing the card, on which group-indicating indicia and figures indicating work-shift starting-hours are marked.
Inventors
- 👤 Jr Leonard Earl Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:46
CPC Classifications
G; G09; G09D; G09D1/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
377 words
A work-shift indicator, comprising: a thin rectangular sheet of stiffly flexible material, capable of being marked with symbols; calendar-like indicia on said sheet of the months, dates and days of the weeks of a given period, comprising a number of swing-shift cycles, the said calendar-like indicia being on both sides of said sheet and in a number of successive spaces equal to the number of days in said period, arranged in parallel lines and comprising a plurality of sets of date symbols, each of said sets being equal in number of symbols to the number of days in a swing-shift cycle and ending with an end of one of said parallel lines; and an endless ribbon of flexible material, encompassing and in contact with said sheet, slidably and turnably mounted on and between two opposite edges of said sheet, having substantially the same width throughout its length and all around said sheet, and having an encompassing length substantially equal to twice the sum of the distance between said edges and the thickness of said thin sheet and sufficient clearance to allow sliding of the band on the sheet; the said band comprising an additional set of symbols indicating worker groups of said swing-shift cycles, spaced along the length of the ribbon, and comprising groups of successive figures indicating work-shift starting hours, spaced along the length of the ribbon, the said figure groups being separated from each other by off-duty spaces indicating days off of the said groups; part of the said successive figures being in a line on one side of said sheet and the other part of said successive figures being in a line on the other side of said sheet; the said figures and off-duty spaces also being in perpendicular lines that are normal to said parallel lines of the calendar-like indicia, each of the said perpendicular lines for each of the starting-hour figures and off-duty spaces in one adjusted position of said endless ribbon orthogonally intersecting a said parallel line of calendar-like indicia at an indicium indicating the day of said starting-hour figure or off-duty day of one of said groups, and in another, turned position of the ribbon indicating the day of said starting-hour figure or off-duty day of another of said groups.
Claim 2
Dependent Claim
377 words
A work-shift indicator, comprising: a thin rectangular sheet of stiffly flexible material, capable of being marked with symbols; calendar-like indicia on said sheet of the months, dates and days of the weeks of a given period, comprising a number of swing-shift cycles, the said calendar-like indicia being on both sides of said sheet and in a number of successive spaces equal to the number of days in said period, arranged in parallel lines and comprising a plurality of sets of date symbols, each of said sets being equal in number of symbols to the number of days in a swing-shift cycle and ending with an end of one of said parallel lines; and an endless ribbon of flexible material, encompassing and in contact with said sheet, slidably and turnably mounted on and between two opposite edges of said sheet, having substantially the same width throughout its length and all around said sheet, and having an encompassing length substantially equal to twice the sum of the distance between said edges and the thickness of said thin sheet and sufficient clearance to allow sliding of the band on the sheet; the said band comprising an additional set of symbols indicating worker groups of said swing-shift cycles, spaced along the length of the ribbon, and comprising groups of successive figures indicating work-shift starting hours, spaced along the length of the ribbon, the said figure groups being separated from each other by off-duty spaces indicating days off of the said groups; part of the said successive figures being in a line on one side of said sheet and the other part of said successive figures being in a line on the other side of said sheet; the said figures and off-duty spaces also being in perpendicular lines that are normal to said parallel lines of the calendar-like indicia, each of the said perpendicular lines for each of the starting-hour figures and off-duty spaces in one adjusted position of said endless ribbon orthogonally intersecting a said parallel line of calendar-like indicia at an indicium indicating the day of said starting-hour figure or off-duty day of one of said groups, and in another, turned position of the ribbon indicating the day of said starting-hour figure or off-duty day of another of said groups.
Claim 3
Dependent Claim
33 words
An indicator as set forth in claim 1, in which: said parallel lines of calendar-like indicia and said lines of starting-hour figures and off-duty spaces are vertical; and said perpendicular lines are horizontal.
Claim 4
Dependent Claim
40 words
An indicator as set forth in claim 1, in which: said sheet has a recess at one of its ends and a similar recess at its opposite end; and the said turnable ribbon is mounted in and between said recesses.
Claim 5
Dependent Claim
24 words
An indicator as set forth in claim 3, further comprising means for securing said endless ribbon in a selective one of its adjusted positions.
Claim 6
Dependent Claim
19 words
An indicator as set forth in claim 3, in which the material of said sheet comprises stiff, bendable paper.
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) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |