Patent US4660292A successfully refreshed from Google Patents.
US4660292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination measuring device, level and plumb
Assignee: PRO MANUFACTURING Inc
•
Filing: 1986-06-17
•
Granted: 1987-04-28
•
Expires: 2006-06-17
Abstract
Abstract Disclosed is a combination rule, horizontal level, vertical plumb and straight edge. By use of two parallel scales running reverse to one another mounted to an elongated member, direct read measurements can be taken between two points up to a distance equal to twice the overall length of the tool such that no arithmetic computation is required. Perpendicularly mounted target levels allow the tool to be used as both a vertical plumb and a horizontal level. A flanged box beam member provides finger tip recesses for easy manipulation and maneuvering of the tool by the user.
Inventors
- 👤 Anthony D. Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:12
CPC Classifications
B; B43; B43L; B43L7/00; B43L7/005
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
161 words
A combination rule and leveling device comprising: a. an elongated substantially planar member having inner and outer surfaces; b. an elongated support member substantially parallel to said planar member and affixed to said planar member along said inner surface by means of a perpendicular connecting wall such that an upper recess and a lower recess are formed between said planar member and said support member, said upper and lower recesses providing finger tip gripping areas for the user; c. a first scale running the length of said planar member affixed to said outer surface measuring from zero to the overall length of said elongated planar member; d. a second scale running the length of said elongated planar member affixed to said outer surface adjacent to said first scale reading in the reverse direction of said first scale; e. a first target-type level affixed to said support member so that said combination rule and leveling device is usable as a horizontal level.
Claim 2
Dependent Claim
161 words
A combination rule and leveling device comprising: a. an elongated substantially planar member having inner and outer surfaces; b. an elongated support member substantially parallel to said planar member and affixed to said planar member along said inner surface by means of a perpendicular connecting wall such that an upper recess and a lower recess are formed between said planar member and said support member, said upper and lower recesses providing finger tip gripping areas for the user; c. a first scale running the length of said planar member affixed to said outer surface measuring from zero to the overall length of said elongated planar member; d. a second scale running the length of said elongated planar member affixed to said outer surface adjacent to said first scale reading in the reverse direction of said first scale; e. a first target-type level affixed to said support member so that said combination rule and leveling device is usable as a horizontal level.
Claim 3
Dependent Claim
44 words
A combination rule and leveling device as recited in claim 1 wherein: said second scale has an initial dimension equal to the overall length of said elongated planar member and a final dimension equal to two times the length of said elongated planar member.
Claim 4
Dependent Claim
36 words
A combination rule and leveling device as recited in claim 2 further comprising: a second target-type level affixed to said support member so that said combination rule and leveling device is usable as a vertical plumb.
Claim 5
Dependent Claim
28 words
A combination rule and leveling device as recited in claim 3 further comprising: a third scale running the length of said planar member mounted to said inner surface.
Claim 6
Dependent Claim
30 words
A combination rule and leveling device as recited in claim 4 further comprising: a support block affixed to said support member providing residence for said first and second target-type levels.
Claim 7
Dependent Claim
179 words
A combination rule and leveling device comprising: a. an elongated substantially planar member having inner and outer surfaces; b. an elongated support member substantially parallel to said planar member and affixed to said planar member along said inner surface by means of a perpendicular connecting wall such that an upper recess and a lower recess are formed between said planar member and said support member, said upper and lower recesses providing finger tip gripping areas for the user; c. a first scale running the length of said planar member affixed to said outer surface measuring from zero to the overall length of said elongated planar member; d. a second scale running the length of said elongated planar member affixed to said outer surface adjacent to said first scale reading in the reverse direction of said first scale said second scale reading at its initial point the dimension equal to the overall length of said elongated planar member and said second scale reading at its end point a dimension equal to two times the length of said elongated planar member.
Claim 8
Dependent Claim
179 words
A combination rule and leveling device comprising: a. an elongated substantially planar member having inner and outer surfaces; b. an elongated support member substantially parallel to said planar member and affixed to said planar member along said inner surface by means of a perpendicular connecting wall such that an upper recess and a lower recess are formed between said planar member and said support member, said upper and lower recesses providing finger tip gripping areas for the user; c. a first scale running the length of said planar member affixed to said outer surface measuring from zero to the overall length of said elongated planar member; d. a second scale running the length of said elongated planar member affixed to said outer surface adjacent to said first scale reading in the reverse direction of said first scale said second scale reading at its initial point the dimension equal to the overall length of said elongated planar member and said second scale reading at its end point a dimension equal to two times the length of said elongated planar member.
Claim 9
Dependent Claim
199 words
A combination rule, horizontal level, vertical plumb and straight edge comprising: a. an elongated member having an outer surface and an inner surface; b. a primary scale mounted to said outer surface of said elongated member running the length of said elongated member and measuring from zero to the overall length of said elongated member; c. a secondary scale mounted to said outer surface of elongated member parallel and adjacent to said primary scale, said secondary scale reading in the reverse direction of said primary scale; d. a boxed beam member affixed to said elongated member along the length of said elongated member; e. a pair of flanges extending laterally from said boxed beam member parallel to said elongated member so that there are formed a pair of gripping recesses between said flanges and said elongated member; f. a support block affixed to said boxed beam member; g. a first target-type level affixed to said support block so that said elongated member and said boxed beam member are usable as a horizontal level; h. a second target-type level affixed to said support block so that said elongated member and said boxed beam member are usable as a vertical plumb.
Claim 10
Dependent Claim
199 words
A combination rule, horizontal level, vertical plumb and straight edge comprising: a. an elongated member having an outer surface and an inner surface; b. a primary scale mounted to said outer surface of said elongated member running the length of said elongated member and measuring from zero to the overall length of said elongated member; c. a secondary scale mounted to said outer surface of elongated member parallel and adjacent to said primary scale, said secondary scale reading in the reverse direction of said primary scale; d. a boxed beam member affixed to said elongated member along the length of said elongated member; e. a pair of flanges extending laterally from said boxed beam member parallel to said elongated member so that there are formed a pair of gripping recesses between said flanges and said elongated member; f. a support block affixed to said boxed beam member; g. a first target-type level affixed to said support block so that said elongated member and said boxed beam member are usable as a horizontal level; h. a second target-type level affixed to said support block so that said elongated member and said boxed beam member are usable as a vertical plumb.
References Cited (Backward Citations)
US2145988A
Cited
US2307892A
Cited
US2633640A
Cited
US2859527A
Cited
US2810198A
Cited
US3311988A
Cited
US3832782A
Cited
US3826013A
Cited
US4099331A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-04-27 | 1990-10-27 | 1991-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-27 | 1994-10-27 | 1995-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-27 | 1998-10-27 | 1999-04-28 | $7700.00 | Window Closed / Lapsed |