US4227731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool for lifting and maneuvering utility access covers
Assignee: Individual
•
Filing: 1979-10-01
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Granted: 1980-10-14
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Expires: 1999-10-01
Abstract
Abstract A lifting tool suitable for lifting and maneuvering utility access covers, especially manhole covers, including a handle and an arcuate receiving means connected to the handle for receiving and securely retaining the utility access cover during lifting and maneuvering thereof. The cover abuts against an abutment means when it is received in the receiving portion, and a hook is pivotally connected to the abutment means for engaging the tool with the cover. When the cover is engaged with the tool, it cannot accidentally become disengaged and injure the operator, and the provision of a support plate on the bottom of the tool facilitates complete control over the movement of the tool when the cover is engaged therewith.
Inventors
- 👤 Alfred B. Castle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:52
CPC Classifications
B; B66; B66F; B66F15/00; B65; B65G; B65G7/00; B65G7/12; B66F19/00; B66F19/005
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
231 words
A lifting tool suitable for lifting and maneuvering a utility access cover having an attachment point at or near an outer peripheral edge of said cover, said tool comprising: (a) a handle; (b) receiving means connected to said handle for receiving and retaining said utility access cover during lifting and maneuvering thereof; (c) abutment means for abuttingly engaging said cover when said cover comes into receiving engagement with said receiving means, said abutment means having first and second spaced-apart pivot points, said abutment means being pivotally connected to said handle at said first pivot point; (d) cover engaging means pivotally connected to said abutment means at said second pivot point for engaging said tool to said attachment point of said cover; and (e) guiding means connected to said receiving means for guiding said cover into receiving engagement with said receiving means; said receiving means including a cover engaging surface extending between said guiding means and said abutment means, said cover being slidingly engagable with said cover engaging surface, said cover engaging means and said guiding means cooperating to lift said cover and slidingly urge said cover along said cover engaging surface into abutting engagement with said abutment means upon urging said handle away from said cover, whereby said cover is brought into engagement with said receiving means and securely retained in said receiving means during lifting and maneuvering of said cover.
Claim 2
Dependent Claim
231 words
A lifting tool suitable for lifting and maneuvering a utility access cover having an attachment point at or near an outer peripheral edge of said cover, said tool comprising: (a) a handle; (b) receiving means connected to said handle for receiving and retaining said utility access cover during lifting and maneuvering thereof; (c) abutment means for abuttingly engaging said cover when said cover comes into receiving engagement with said receiving means, said abutment means having first and second spaced-apart pivot points, said abutment means being pivotally connected to said handle at said first pivot point; (d) cover engaging means pivotally connected to said abutment means at said second pivot point for engaging said tool to said attachment point of said cover; and (e) guiding means connected to said receiving means for guiding said cover into receiving engagement with said receiving means; said receiving means including a cover engaging surface extending between said guiding means and said abutment means, said cover being slidingly engagable with said cover engaging surface, said cover engaging means and said guiding means cooperating to lift said cover and slidingly urge said cover along said cover engaging surface into abutting engagement with said abutment means upon urging said handle away from said cover, whereby said cover is brought into engagement with said receiving means and securely retained in said receiving means during lifting and maneuvering of said cover.
Claim 3
Dependent Claim
15 words
A lifting tool according to claim 1, wherein said receiving means has an arcuate configuration.
Claim 4
Dependent Claim
26 words
A tool according to claim 1, wherein said cover engaging means includes at least one L-shaped finger receivable in an aperture in said utility access cover.
Claim 5
Dependent Claim
34 words
A tool according to claim 1, wherein said cover engaging means consists of a plate having two oppositely facing finger portions in the plane of said plate and at opposite ends of said plate.
Claim 6
Dependent Claim
29 words
A tool according to claim 4, wherein one of said L-shaped portions is engageable with a locking device associated with said utility access cover to actuate said locking device.
Claim 7
Dependent Claim
38 words
A tool according to claim 5, wherein said locking device is mounted on an underside of said cover, and is actuated by engagement with one of said L-shaped portions projecting through an aperture in said utility access cover.
Claim 8
Dependent Claim
24 words
A tool according to claim 1, wherein said guiding means is engageable with a surface of a support ring for said utility access cover.
Claim 9
Dependent Claim
283 words
A lifting tool suitable for lifting and maneuvering a utility access cover having an aperture near an outer peripheral edge of said cover, said tool comprising: (a) a handle; (b) receiving means connected to said handle for receiving and retaining said utility access cover during lifting and maneuvering thereof, said receiving means having a first end and a second end, said receiving means having an arcuate cover engaging surface extending between said first and second ends, said cover being slidingly engagable with said arcuate cover engaging surface; (c) abutment means for abuttingly engaging said cover when said cover comes into receiving engagement with said receiving means, said abutment means having first and second spaced-apart pivot points, said abutment means being pivotally connected at said first pivot point to said first end of said receiving means; (d) cover engaging means pivotally connected to said abutment means at said second pivot point for engaging said tool to said aperture in said cover, said cover engaging means having at least one L-shaped portion engagable with said aperture in said cover; and (e) guiding means connected to said second end of said receiving means for guiding said cover into receiving engagement with said receiving means, said guiding means terminating in a wedge-shaped portion engagable with a point on a cover support ring; said cover engaging means and said guiding means cooperating to lift said cover and slidingly urge said cover along said arcuate cover engaging surface into abutting engagement with said abutment means upon urging said handle away from said said cover, whereby said cover is brought into receiving engagement with said receiving means and securely retained in said receiving means during lifting and maneuvering said cover.
Claim 10
Dependent Claim
283 words
A lifting tool suitable for lifting and maneuvering a utility access cover having an aperture near an outer peripheral edge of said cover, said tool comprising: (a) a handle; (b) receiving means connected to said handle for receiving and retaining said utility access cover during lifting and maneuvering thereof, said receiving means having a first end and a second end, said receiving means having an arcuate cover engaging surface extending between said first and second ends, said cover being slidingly engagable with said arcuate cover engaging surface; (c) abutment means for abuttingly engaging said cover when said cover comes into receiving engagement with said receiving means, said abutment means having first and second spaced-apart pivot points, said abutment means being pivotally connected at said first pivot point to said first end of said receiving means; (d) cover engaging means pivotally connected to said abutment means at said second pivot point for engaging said tool to said aperture in said cover, said cover engaging means having at least one L-shaped portion engagable with said aperture in said cover; and (e) guiding means connected to said second end of said receiving means for guiding said cover into receiving engagement with said receiving means, said guiding means terminating in a wedge-shaped portion engagable with a point on a cover support ring; said cover engaging means and said guiding means cooperating to lift said cover and slidingly urge said cover along said arcuate cover engaging surface into abutting engagement with said abutment means upon urging said handle away from said said cover, whereby said cover is brought into receiving engagement with said receiving means and securely retained in said receiving means during lifting and maneuvering said cover.
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) | 1983-10-14 | 1984-04-14 | 1984-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-14 | 1988-04-14 | 1988-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-14 | 1992-04-14 | 1992-10-14 | $7700.00 | Window Closed / Lapsed |