Patent US277386A successfully refreshed from Google Patents.
Patent US5067249A successfully refreshed from Google Patents.
US5067249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Map scaling instrument
Assignee: Individual
•
Filing: 1990-08-07
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Granted: 1991-11-26
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Expires: 2010-08-07
Abstract
Abstract An instrument for measuring and converting scale dimensions such as, for example, mileage values on a map, includes a housing having a tracing wheel at one end for rolling along route lines on the map. The tracing wheel is connected to operate an actuator that causes a digital display to visually indicate a value representative of the degrees of rotation of the tracing wheel, and thus of the mileage between two points on a map. A scale adjusting device is connected with the actuator to adjust the actuator to obtain an accurate mileage indication for different scale maps.
Inventors
- 👤 Matthew Terrigno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:30
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/12; G01C; G01C21/00; G01C21/20; G01C22/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
178 words
An instrument for measuring and converting scale dimensions, comprising: an elongate housing having first and second ends; a tracing wheel rotatably supported on one end of the housing for rolling movement along a dimension to be measured; an actuator cylinder rotatably supported in the housing between the ends of the housing for rotation about an axis parallel to the axis of the housing; gear means connected between the tracing wheel and the actuator cylinder for rotating the actuator cylinder as the tracing wheel rotates along the dimension being measured; an electronic digital numerical display device on a side of the housing for displaying a scale measurement of the dimension being measured; actuator means on the actuator cylinder adapted to actuate the digital numerical display device upon rotation of the tracing wheel and actuator cylinder; and scale adjusting means on the other end of the housing, connected with the actuator cylinder for adjusting the position of the actuator cylinder relative to the digital numerical display device, whereby the instrument may be calibrated to obtain and display different scale measurements.
Claim 2
Dependent Claim
178 words
An instrument for measuring and converting scale dimensions, comprising: an elongate housing having first and second ends; a tracing wheel rotatably supported on one end of the housing for rolling movement along a dimension to be measured; an actuator cylinder rotatably supported in the housing between the ends of the housing for rotation about an axis parallel to the axis of the housing; gear means connected between the tracing wheel and the actuator cylinder for rotating the actuator cylinder as the tracing wheel rotates along the dimension being measured; an electronic digital numerical display device on a side of the housing for displaying a scale measurement of the dimension being measured; actuator means on the actuator cylinder adapted to actuate the digital numerical display device upon rotation of the tracing wheel and actuator cylinder; and scale adjusting means on the other end of the housing, connected with the actuator cylinder for adjusting the position of the actuator cylinder relative to the digital numerical display device, whereby the instrument may be calibrated to obtain and display different scale measurements.
Claim 3
Dependent Claim
83 words
An instrument as claimed in claim 1, wherein: the actuator means comprises a plurality of rows of circumferentially spaced apart projections on an outer surface of said actuator cylinder, said projections arranged to sequentially engage and actuate the digital display as the actuator cylinder rotates, for thereby sequentially advancing the digital display; and the projections in adjacent rows of said projections being spaced apart different distances so that the number of actuations per rotation of the actuator cylinder is different for each row.
Claim 4
Dependent Claim
48 words
An instrument as claimed in claim 2, wherein: the scale adjusting means includes means for repositioning the actuator cylinder in relation to the digital display so that a different row of actuator projections is operative to engage the digital display, thereby enabling the scale conversion to be adjusted.
Claim 5
Dependent Claim
58 words
An instrument as claimed in claim 3, wherein: the gear means includes an elongate actuator shaft extending longitudinally within the housing, and gears engaged between the tracing wheel and the actuator shaft to impart rotation to the actuator shaft as the tracing wheel is rotated; said actuator cylinder is connected with the actuator shaft to be rotated thereby.
Claim 6
Dependent Claim
26 words
An instrument as claimed in claim 4, wherein: the actuator cylinder is movable axially relative to the actuator shaft but is fixed against rotation relative thereto.
Claim 7
Dependent Claim
89 words
An instrument as claimed in claim 5, wherein: the scale adjusting means comprises a pin connected at one end to an end of the actuator cylinder and extending at its other end to exteriorly of the housing, said pin being rotatable relative to the actuator cylinder but being fixed against axial movement relative thereto; and said pin being threadably engaged with the housing whereby rotation of the pin causes it to move axially relative to the housing, thereby causing said actuator cylinder to move axially relative to the housing.
Claim 8
Dependent Claim
41 words
An instrument as claimed in claim 6, wherein: said other end of the pin has scale markings on an exterior surface thereof so that a particular scale can be observed and selected for use with the dimension having that particular scale.
Claim 9
Dependent Claim
26 words
An instrument as claimed in claim 7, wherein: a light is provided in said housing for illuminating an area on which said tracing wheel is rotated.
Claim 10
Dependent Claim
26 words
An instrument as claimed in claim 7, wherein: a marker is provided in combination with said instrument for marking the path followed by said tracing wheel.
Claim 11
Dependent Claim
21 words
An instrument as claimed in claim 7, wherein: a scale is provided on a side of said housing for measuring objects.
Claim 12
Dependent Claim
57 words
An instrument as claimed in claim 3, wherein: the electronic display is a liquid crystal display device; and includes an actuator button that is engaged by the protrusions on the actuator cylinder as the cylinder rotates, and said button is connected to change the display on the liquid crystal display device each time the button is actuated.
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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) | 1994-11-25 | 1995-05-27 | 1995-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-25 | 1999-05-27 | 1999-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-25 | 2003-05-27 | 2003-11-26 | $7700.00 | Window Closed / Lapsed |