Patent US4165983A successfully refreshed from Google Patents.
US3854573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load carrier with dual pin suspension
Assignee: Neenah Foundry Co
•
Filing: 1973-07-30
•
Granted: 1974-12-17
•
Expires: 1993-07-30
Abstract
Abstract An overhead trolley suspends a load carrier which is provided with two pintles spaced apart from each other longitudinally of the load carrier and spaced inwardly from the ends of the load carrier. Accordingly, the center of gravity of a load carried by the load carrier can be located between said pins and an end of the load carrier. The overhead trolley has a supporting surface which receives and supports the pintles. There is an open space above the supporting member above each of the pintles so that each pintle can be lifted off of its supporting surface, whereby an unbalanced load in said load carrier causes the load carrier to tilt so that it is supported by the pintle which is nearest the load center of gravity, thereby reducing the tilting moment of the load carrier in response to an unbalanced load.
Inventors
- 👤 G Freier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:46
CPC Classifications
B; B65; B65G; B65G17/00; B65G17/20; B65G2201/00; B65G2201/02
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
167 words
In a suspension system for suspending a load carrier from an overhead trolley having a load carrier supporting member, the improvement in which said load carrier is provided with two pintles spaced apart from each other longitudinally of, and at the top of, the load carrier and spaced inwardly from the ends of the load carrier so that the center of gravity of a load carried by the load carrier can be located between said pins and an end of the load carrier, said supporting member having a surface for receiving and supporting said pintles, there being an open space in said supporting member above each of the pintles so that each pintle can be lifted off its supporting surface, whereby an unbalanced load so located in said load carrier causes the load carrier to tilt so that it is supported by the pintle which is nearest the load''s center of gravity, thereby reducing the tilting moment of the load carrier in response to an unbalanced load.
Claim 2
Dependent Claim
167 words
In a suspension system for suspending a load carrier from an overhead trolley having a load carrier supporting member, the improvement in which said load carrier is provided with two pintles spaced apart from each other longitudinally of, and at the top of, the load carrier and spaced inwardly from the ends of the load carrier so that the center of gravity of a load carried by the load carrier can be located between said pins and an end of the load carrier, said supporting member having a surface for receiving and supporting said pintles, there being an open space in said supporting member above each of the pintles so that each pintle can be lifted off its supporting surface, whereby an unbalanced load so located in said load carrier causes the load carrier to tilt so that it is supported by the pintle which is nearest the load''s center of gravity, thereby reducing the tilting moment of the load carrier in response to an unbalanced load.
Claim 3
Dependent Claim
40 words
The improvement defined in claim 1 wherein two spaced openings are formed in said supporting member for receiving said pintles, each of said openings extending above the corresponding pintle to allow each pintle to be lifted off its supporting surface.
Claim 4
Dependent Claim
99 words
The improvement defined in claim 1 wherein said supporting member is movably suspended from a conveyor system including a track which in portions is inclined at an acute angle to the horizontal, and wherein said supporting member inclines at an acute angle to the horizontal when it traverses the inclined portions of said track, thereby causing said supporting member to tilt and to support the load carrier by the uppermost pintle, whereby tilting moment is introduced into the system and the load carrier is tilted away from the conveyor to provide clearance between the load carrier and the conveyor.
Claim 5
Dependent Claim
64 words
The improvement defined in claim 1 wherein said supporting member is rigidly attached to a conveyor trolley, said pintles being mounted on a hanger rigidly attached to said load carrier, said hanger being shaped to embrace said supporting member and having openings therein for receiving said pintles, and said pintles extending transversely through said hanger in the region where it embraces said support member.
Claim 6
Dependent Claim
27 words
The improvement defined in claim 1 wherein said pintles are removably joined to said load carrier to permit the same to be separated from said supporting member.
Claim 7
Dependent Claim
67 words
The improvement defined in claim 4 wherein said supporting member has two spaced openings formed therein for receiving said pintles, the openings in said supporting member extending above said pintles to permit each pintle to be lifted off its supporting surface, and said pintles being inserted transversely through corresponding openings in said hanger and said supporting member to tiltably join the load carrier to the supporting member.
Claim 8
Dependent Claim
30 words
The improvement defined in claim 6 wherein said pintles have an enlarged head at one end and an opening at the other end for receiving a washer and cotter pin.
Claim 9
Dependent Claim
13 words
The improvement defined in claim 2 wherein said openings are oblong in shape.
Claim 10
Dependent Claim
55 words
The improvement defined in claim 4 wherein said hanger comprises two upstanding legs which are rigidly attached at their bottom end to said load carrier and are spaced at their upper end to embrace the lower portion of said supporting member, and openings formed in the upper ends of said legs for receiving said pintles.
Claim 11
Dependent Claim
36 words
The combination defined in claim 1 wherein said load carrier comprises a basket having a support yoke and wherein the lower portion of said upstanding legs are rigidly attached to the central portion of said yoke.
Claim 12
Dependent Claim
34 words
The improvement of claim 1 in which there is an overhanging surface above said open space which limits the upward movement of the pintles and hence limits the maximum tilt of the load carrier.
Claim 13
Dependent Claim
87 words
The improvement of claim 11 in which supporting member is movably suspended from a conveyor system including a track which in portions is inclined at an angle to the horizontal, and wherein said supporting member likewise inclines at an angle to the horizontal when it traverses the inclined portions of said track, said overhanging surface being brought closer to its pintle as a consequence of the inclined position of the supporting member, thus to limit the maximum tilt of the load carrier adjacent said inclined track portion.
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) | 1977-12-16 | 1978-06-17 | 1978-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-16 | 1982-06-17 | 1982-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-16 | 1986-06-17 | 1986-12-17 | $7700.00 | Window Closed / Lapsed |