Patent US3715808A successfully refreshed from Google Patents.
US3715808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vertical alignment gauge
Assignee: Individual
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Filing: 1971-08-13
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Granted: 1973-02-13
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Expires: 1991-08-13
Abstract
Abstract A telescopically adjustable tubular construction for upright arrangement having a central opening in its upper end and permanent magnet means extending laterally from an upper region of the tubular construction for holding engagement with a door jamb or the like, a standoff member adjacent to a lower region of the tubular construction, a window provided in a lower region of the tubular construction, and plumb bob means suspended interiorly of the tubular construction visually accessible through the window.
Inventors
- 👤 A Petrik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:53
CPC Classifications
G; G01; G01C; G01C15/00; G01C15/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
323 words
A vertical alignment gauge comprising a telescopically adjustable tubular construction adapted to be arranged in upright relation, a closure on the upper end of said tubular construction and having a central through opening, permanent magnet means extending laterally from said tubular construction adjacent to the upper end thereof and terminating in pole faces spaced a predetermined distance from the center line of said tubular construction, said pole faces being adapted for magnetic holding engagement with a door jamb or the like, a laterally extending stand-off member on said tubular construction adjacent to the lower end thereof terminating in an abutment face spaced said predetermined distance from said center line for abutting engagement with the door jamb, a window in the lower region of said tubular construction and provided with a center line marking, and elongate flexible element depending through said opening interiorly of said tubular construction and past said window, a plumb bob on the lower end of said flexible element, so that vertical alignment of said tubular construction can be determined by observation through said window of said flexible element relative to said center line marking, a hanger comprising a generally vertical attachment member having one side removably secured in magnetic engagement with said magnet means, a hanger support extending from said attachment member laterally outwardly and obliquely downwardly for resting engagement with the upper edge of a supporting member or the like, said hanger support extending laterally outwardly and downwardly from said attachment member for sliding gravitational movement of said hanger support across an upper supporting member edge to place the outer side of said attachment member against said supporting member, said tubular construction center line being located at a distance from said supporting member equal to said predetermined distance plus the thickness of said attachment member, and an additional marking in said window spaced outwardly from said center line marking a distance equal to the thickness of said attachment member.
Claim 2
Dependent Claim
323 words
A vertical alignment gauge comprising a telescopically adjustable tubular construction adapted to be arranged in upright relation, a closure on the upper end of said tubular construction and having a central through opening, permanent magnet means extending laterally from said tubular construction adjacent to the upper end thereof and terminating in pole faces spaced a predetermined distance from the center line of said tubular construction, said pole faces being adapted for magnetic holding engagement with a door jamb or the like, a laterally extending stand-off member on said tubular construction adjacent to the lower end thereof terminating in an abutment face spaced said predetermined distance from said center line for abutting engagement with the door jamb, a window in the lower region of said tubular construction and provided with a center line marking, and elongate flexible element depending through said opening interiorly of said tubular construction and past said window, a plumb bob on the lower end of said flexible element, so that vertical alignment of said tubular construction can be determined by observation through said window of said flexible element relative to said center line marking, a hanger comprising a generally vertical attachment member having one side removably secured in magnetic engagement with said magnet means, a hanger support extending from said attachment member laterally outwardly and obliquely downwardly for resting engagement with the upper edge of a supporting member or the like, said hanger support extending laterally outwardly and downwardly from said attachment member for sliding gravitational movement of said hanger support across an upper supporting member edge to place the outer side of said attachment member against said supporting member, said tubular construction center line being located at a distance from said supporting member equal to said predetermined distance plus the thickness of said attachment member, and an additional marking in said window spaced outwardly from said center line marking a distance equal to the thickness of said attachment member.
Claim 3
Dependent Claim
323 words
A vertical alignment gauge comprising a telescopically adjustable tubular construction adapted to be arranged in upright relation, a closure on the upper end of said tubular construction and having a central through opening, permanent magnet means extending laterally from said tubular construction adjacent to the upper end thereof and terminating in pole faces spaced a predetermined distance from the center line of said tubular construction, said pole faces being adapted for magnetic holding engagement with a door jamb or the like, a laterally extending stand-off member on said tubular construction adjacent to the lower end thereof terminating in an abutment face spaced said predetermined distance from said center line for abutting engagement with the door jamb, a window in the lower region of said tubular construction and provided with a center line marking, and elongate flexible element depending through said opening interiorly of said tubular construction and past said window, a plumb bob on the lower end of said flexible element, so that vertical alignment of said tubular construction can be determined by observation through said window of said flexible element relative to said center line marking, a hanger comprising a generally vertical attachment member having one side removably secured in magnetic engagement with said magnet means, a hanger support extending from said attachment member laterally outwardly and obliquely downwardly for resting engagement with the upper edge of a supporting member or the like, said hanger support extending laterally outwardly and downwardly from said attachment member for sliding gravitational movement of said hanger support across an upper supporting member edge to place the outer side of said attachment member against said supporting member, said tubular construction center line being located at a distance from said supporting member equal to said predetermined distance plus the thickness of said attachment member, and an additional marking in said window spaced outwardly from said center line marking a distance equal to the thickness of said attachment member.
Claim 4
Dependent Claim
323 words
A vertical alignment gauge comprising a telescopically adjustable tubular construction adapted to be arranged in upright relation, a closure on the upper end of said tubular construction and having a central through opening, permanent magnet means extending laterally from said tubular construction adjacent to the upper end thereof and terminating in pole faces spaced a predetermined distance from the center line of said tubular construction, said pole faces being adapted for magnetic holding engagement with a door jamb or the like, a laterally extending stand-off member on said tubular construction adjacent to the lower end thereof terminating in an abutment face spaced said predetermined distance from said center line for abutting engagement with the door jamb, a window in the lower region of said tubular construction and provided with a center line marking, and elongate flexible element depending through said opening interiorly of said tubular construction and past said window, a plumb bob on the lower end of said flexible element, so that vertical alignment of said tubular construction can be determined by observation through said window of said flexible element relative to said center line marking, a hanger comprising a generally vertical attachment member having one side removably secured in magnetic engagement with said magnet means, a hanger support extending from said attachment member laterally outwardly and obliquely downwardly for resting engagement with the upper edge of a supporting member or the like, said hanger support extending laterally outwardly and downwardly from said attachment member for sliding gravitational movement of said hanger support across an upper supporting member edge to place the outer side of said attachment member against said supporting member, said tubular construction center line being located at a distance from said supporting member equal to said predetermined distance plus the thickness of said attachment member, and an additional marking in said window spaced outwardly from said center line marking a distance equal to the thickness of said attachment member.
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) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |