Patent US3434794A successfully refreshed from Google Patents.
Patent US3667633A successfully refreshed from Google Patents.
US3667633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fork lift attachment
Assignee: SERGI BROS Inc
•
Filing: 1970-07-29
•
Granted: 1972-06-06
•
Expires: 1990-07-29
Abstract
Abstract A pair of fork lift elements are clamped at their rear ends in laterally spaced relation between pivotal segments of a bucket mounted on an earth handling apparatus. The bucket thereby is quickly converted to a fork lift having all the movements imparted to the bucket for lifting and conveying a load.
Inventors
- 👤 Michael Cappella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:07
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/065; B60; B60P; B60P1/00; B60P1/48; B60P1/50
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
155 words
A fork lift element comprising an elongated structural member having a load bearing surface and provided with a forward end and a rearward end, said structural member comprising a flat plate and a plurality of legs extending substantially lengthwise of said plate and downward in a direction generally normal to the plane of said plate, a hook shaped bracket at said rearward end of said structural member and facing toward said forward end, said bracket depending downwardly from said structural member away from said load bearing surface and adapted to be clamped by an earth moving bucket, reinforcing means at the juncture of said structural member and said bracket, a stop member on said structural member disposed forwardly of said bracket and extending from said structural member in a direction opposite to said bracket, and a pad of resiliently yieldable material secured to said stop member and facing the forward end of said structural member.
Claim 2
Dependent Claim
155 words
A fork lift element comprising an elongated structural member having a load bearing surface and provided with a forward end and a rearward end, said structural member comprising a flat plate and a plurality of legs extending substantially lengthwise of said plate and downward in a direction generally normal to the plane of said plate, a hook shaped bracket at said rearward end of said structural member and facing toward said forward end, said bracket depending downwardly from said structural member away from said load bearing surface and adapted to be clamped by an earth moving bucket, reinforcing means at the juncture of said structural member and said bracket, a stop member on said structural member disposed forwardly of said bracket and extending from said structural member in a direction opposite to said bracket, and a pad of resiliently yieldable material secured to said stop member and facing the forward end of said structural member.
Claim 3
Dependent Claim
20 words
A fork lift element according to claim 1 together with reinforcing means supporting said stop member in an upright position.
Claim 4
Dependent Claim
131 words
In combination with a mechanically operated bucket having clamping means, a pair of laterally spaced fork lift elements each comprising an elongated structural member having a flat load bearing surface adapted at onE end thereof to be inserted beneath a load to be lifted, a bracket at the other end of said structural member extending in a direction generally normal to the longitudinal axis of said structural member away from said load bearing surface and adapted to be clamped by said bucket, and a stop member on said flat surface adjacent the other end thereof extending in a direction opposite to said bracket, said bracket clamping means comprising a pair of pivotal segments operable to clamp said brackets of said fork lift elements therebetween to secure said elements to said bucket.
Claim 5
Dependent Claim
131 words
In combination with a mechanically operated bucket having clamping means, a pair of laterally spaced fork lift elements each comprising an elongated structural member having a flat load bearing surface adapted at onE end thereof to be inserted beneath a load to be lifted, a bracket at the other end of said structural member extending in a direction generally normal to the longitudinal axis of said structural member away from said load bearing surface and adapted to be clamped by said bucket, and a stop member on said flat surface adjacent the other end thereof extending in a direction opposite to said bracket, said bracket clamping means comprising a pair of pivotal segments operable to clamp said brackets of said fork lift elements therebetween to secure said elements to said bucket.
Claim 6
Dependent Claim
30 words
A combination according to claim 3 wherein each of said stop members has a pad of resiliently yieldable material secured thereto facing said one end of said load bearing surface.
References Cited (Backward Citations)
GB760808A
Cited
US2814402A
Cited
US3080080A
Cited
US3310189A
Cited
US3325023A
Cited
US3349933A
Cited
US3362554A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |