US3985338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manhole cover lifter
Assignee: Individual
•
Filing: 1975-11-17
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Granted: 1976-10-12
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Expires: 1995-11-17
Abstract
Abstract A tool for breaking loose a manhole cover which has become sealed under an accumulation of road tar and dirt; the device consisting of a long lever which at one end has a hook for engaging an opening through the manhole cover, a fulcrum being located relatively close to the end of the lever having the hook, so that when a workman places his foot upon the other end of the lever, he can with very little effort pry the manhole upwardly for easy removal.
Inventors
- 👤 Edgar R. Herrmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:34
CPC Classifications
B; B66; B66F; B66F19/00; B66F19/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
205 words
A manhole cover lifter, comprising in combination, an elongated straight steel pipe, one end of said pipe having a transverse pin therethrough, said pin pivotally supporting a downward extending hook, and a fulcrum being welded to an underside of said steel pipe, said fulcrum being located relatively close to said end of said pipe that supports said hook, said fulcrum comprising a downward extending lug, which at its lower end is welded to a transverse extending steel bar, an opposite end of said steel pipe being provided with a pair of transverse, spaced apart extending openings therethrough, each said openings removably receiving a straight steel rod, said steel rods protruding from opposite ends of said transverse openings, thus forming a grill upon which a person can stand, said steel rods, when removed from said transverse openings, being stored within an interior of said pipe, said opposite end of said steel pipe having a threaded opening receiving a removable end cap, said steel rods being of a diameter that is smaller than the central opening of said pipe, so to slideably be received therewithin, and said steel rods, together, being shorter than the length of said pipe central opening, so as to be fully fitted therewithin.
Claim 2
Dependent Claim
205 words
A manhole cover lifter, comprising in combination, an elongated straight steel pipe, one end of said pipe having a transverse pin therethrough, said pin pivotally supporting a downward extending hook, and a fulcrum being welded to an underside of said steel pipe, said fulcrum being located relatively close to said end of said pipe that supports said hook, said fulcrum comprising a downward extending lug, which at its lower end is welded to a transverse extending steel bar, an opposite end of said steel pipe being provided with a pair of transverse, spaced apart extending openings therethrough, each said openings removably receiving a straight steel rod, said steel rods protruding from opposite ends of said transverse openings, thus forming a grill upon which a person can stand, said steel rods, when removed from said transverse openings, being stored within an interior of said pipe, said opposite end of said steel pipe having a threaded opening receiving a removable end cap, said steel rods being of a diameter that is smaller than the central opening of said pipe, so to slideably be received therewithin, and said steel rods, together, being shorter than the length of said pipe central opening, so as to be fully fitted therewithin.
References Cited (Backward Citations)
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GB320796A
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US2099592A
Cited
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US3275299A
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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) | 1979-10-12 | 1980-04-12 | 1980-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-12 | 1984-04-12 | 1984-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-12 | 1988-04-12 | 1988-10-12 | $7700.00 | Window Closed / Lapsed |