Patent US4372052A successfully refreshed from Google Patents.
US4372052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for indicating direction to a predetermined locale
Assignee: Individual
•
Filing: 1980-11-07
•
Granted: 1983-02-08
•
Expires: 2000-11-07
Abstract
Abstract A direction indicating device has an azimuth card which is positioned upon a compass. The card is provided with a number of indicia marks corresponding to specific geographic locations. An adjustable straight-line cursor is positioned to be aligned with an indicia marking corresponding to the geographic location at which the device is being used and with the pivot point of the compass magnetic needle such that when the compass magnetic needle is pointing to magnetic North, the straight-line cursor will indicate the true direction of the predetermined locale from that specific geographic location.
Inventors
- 👤 Edmond K. Wakim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:22
CPC Classifications
G; G01; G01C; G01C17/00; G01C17/02; G01C17/04; A; A47; A47G; A47G33/00; A47G33/008; Y; Y10; Y10S; Y10S116/00; Y10S116/43
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
278 words
In a device for indicating the direction of a predetermined locale from a specific geographic location at any point in the world, a compass having a magnetic needle pivotally mounted on a pivot, a plurality of azimuth cards and each card representing a particular geographic region, there being a plurality of indicia markings on each card corresponding to specific geographic locations in said region, said azimuth cards each having an opening therein to accommodate the magnetic needle when a said card is positioned on the compass such that each card is selectively positionable upon said compass in a predetermined relationship to said magnetic needle corresponding to the specific geographic location at which the device is being used with respect to a North-South reference, means for orienting a said azimuth card on said compass with respect to said magnetic needle, a transparent adjustable straight-line cursor pivotally mounted upon a pivot coinciding with the pivot of the compass magnetic needle and having a straight line thereon to be aligned with said magnetic needle pivot and with a said indicia marking on a said azimuth card which is positioned upon the compass whereby the cursor will indicate the direction of the predetermined locale from said specific geographic location when said compass magnetic needle is aligned with the North-South reference, said cursor having a head end which points to the predetermined locale and a tail end which is aligned with an indicia marking on the card, one of said head end and tail end being foldable and the other of said head end and tail end being slidable to decrease the length of the cursor when positioning a card upon the compass.
Claim 2
Dependent Claim
278 words
In a device for indicating the direction of a predetermined locale from a specific geographic location at any point in the world, a compass having a magnetic needle pivotally mounted on a pivot, a plurality of azimuth cards and each card representing a particular geographic region, there being a plurality of indicia markings on each card corresponding to specific geographic locations in said region, said azimuth cards each having an opening therein to accommodate the magnetic needle when a said card is positioned on the compass such that each card is selectively positionable upon said compass in a predetermined relationship to said magnetic needle corresponding to the specific geographic location at which the device is being used with respect to a North-South reference, means for orienting a said azimuth card on said compass with respect to said magnetic needle, a transparent adjustable straight-line cursor pivotally mounted upon a pivot coinciding with the pivot of the compass magnetic needle and having a straight line thereon to be aligned with said magnetic needle pivot and with a said indicia marking on a said azimuth card which is positioned upon the compass whereby the cursor will indicate the direction of the predetermined locale from said specific geographic location when said compass magnetic needle is aligned with the North-South reference, said cursor having a head end which points to the predetermined locale and a tail end which is aligned with an indicia marking on the card, one of said head end and tail end being foldable and the other of said head end and tail end being slidable to decrease the length of the cursor when positioning a card upon the compass.
Claim 3
Dependent Claim
19 words
In a device as in claim 1 wherein the North-South reference on said card is disposed adjacent said opening.
Claim 4
Dependent Claim
42 words
In a device as claimed in claim 1 and further comprising a casing having two parts, said compass being fixed in the center of one part and means in the other of said parts for retaining a plurality of azimuth cards therein.
Claim 5
Dependent Claim
49 words
In a device as claimed in claim 3 wherein said casing is rectangular, said azimuth cards being shaped to conform to said casing rectangular shape so that a card is oriented with respect to said compass needle when said card is positioned in said one part of the casing.
Claim 6
Dependent Claim
32 words
In a device as claimed in claim 4 wherein said casing parts are hinged together so as to be openable to a flat position and closed to enclose said compass and cards.
References Cited (Backward Citations)
FR1054674A
Cited
CH328782A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-02-07 | 1986-08-09 | 1987-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-07 | 1990-08-09 | 1991-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-07 | 1994-08-09 | 1995-02-08 | $7700.00 | Window Closed / Lapsed |