Patent US3628820A successfully refreshed from Google Patents.
US3628820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swivel-type hoist ring
Assignee: Individual
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Filing: 1969-12-18
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Granted: 1971-12-21
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Expires: 1989-12-18
Abstract
Abstract A hoist ring assembly which includes a base block having a bore therein, extending from the front to the back thereof, a screw seated in the bore having a threaded portion which extends beyond the block, the block being adapted to revolve around that portion of the screw seated in the bore, and a hoist ring mounted in the block above the bore and adapted for swiveling movement on an axis transverse to that of the bore.
Inventors
- 👤 Leland F Blatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:09
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/10; B66C1/62; B66C1/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
296 words
A hoist ring assembly which comprises a block member having a transverse bore therein; an arcuate radial recess in said block member above said transverse bore and extending straight across the block in a direction transverse or normal to said bore, a hoist ring mounted in said arcuate recess having a swiveling axis normal to the axis of said transverse bore, a screw seated in and extending through and beyond said transverse bore having threads on that portion extending beyond said bore, whereby, when the threaded portion of said screw is threaded into an object to be hoisted, said block member is capable of swiveling movement about said screw and said ring is capable of swiveling movement about said axis normal to that of said screw; said arcuate radial recess extending in longitudinal direction opening through both lateral sides of said block member; and said hoist ring having a straight portion for disposal within said straight across arcuate radial recess, said straight portion permitting swiveling movement of said hoist ring within said recess through substantially 360*; said bore having an enlarged counterbore section at the outer end thereof, a shoulder defined between said enlarged counterbore section and the rest of said bore, and wherein said screw has an enlarged head seated and nested entirely within said enlarged counterbore section, bearing against said shoulder; said arcuate radial recess in said block above said bore being provided in the backside thereof and wherein said hoist ring is retained in said radial recess by means of a plate welded to and extending between opposed sidewalls of said radial recess; said bore extending from the front to the back of said block member and wherein said arcuate radial recess has an axis 90* offset to the axis of said bore.
Claim 2
Dependent Claim
296 words
A hoist ring assembly which comprises a block member having a transverse bore therein; an arcuate radial recess in said block member above said transverse bore and extending straight across the block in a direction transverse or normal to said bore, a hoist ring mounted in said arcuate recess having a swiveling axis normal to the axis of said transverse bore, a screw seated in and extending through and beyond said transverse bore having threads on that portion extending beyond said bore, whereby, when the threaded portion of said screw is threaded into an object to be hoisted, said block member is capable of swiveling movement about said screw and said ring is capable of swiveling movement about said axis normal to that of said screw; said arcuate radial recess extending in longitudinal direction opening through both lateral sides of said block member; and said hoist ring having a straight portion for disposal within said straight across arcuate radial recess, said straight portion permitting swiveling movement of said hoist ring within said recess through substantially 360*; said bore having an enlarged counterbore section at the outer end thereof, a shoulder defined between said enlarged counterbore section and the rest of said bore, and wherein said screw has an enlarged head seated and nested entirely within said enlarged counterbore section, bearing against said shoulder; said arcuate radial recess in said block above said bore being provided in the backside thereof and wherein said hoist ring is retained in said radial recess by means of a plate welded to and extending between opposed sidewalls of said radial recess; said bore extending from the front to the back of said block member and wherein said arcuate radial recess has an axis 90* offset to the axis of said bore.
References Cited (Backward Citations)
US3371951A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |