Patent US3795331A successfully refreshed from Google Patents.
US3795331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fork lift converter attachment
Assignee: Individual
•
Filing: 1972-07-25
•
Granted: 1974-03-05
•
Expires: 1992-07-25
Abstract
Abstract A fork lift converter attachment for a front end loader bucket has a pair of forks with horizontal lifting elements and vertical extension elements, the latter having a cross rod at their upper ends which is generally triangular in transverse cross section: brackets secured to the bucket at the upper edge thereof have generally upwardly facing openings which can receive the cross rod only when the bucket is tilted downwardly, the bucket on reverse rotation causing the cross rod to be locked in the bracket openings. The cross rod may comprise two parallel rods or tubes of different diameters welded together. The vertical and horizontal elements meet at a true right angle, without gussets or fillets. A chain permits fork withdrawal even if the load is resting on the ground.
Inventors
- 👤 W Guest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:33
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/36; E02F3/40; E02F3/401
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
122 words
An apparatus including a motor vehicle having vertically swinging lift arm means for supporting, lifting and rotating an implement, support means comprising an implement carried by said lift arm means, a plurality of transversely spaced, parallel bracket means on said support means, and attachment means comprising load engaging means and a transversely extending cross rod of non-circular cross section, said attachment means being positionable on the ground with said cross rod in a predetermined fixed position. said bracket means comprising relatively fixed means defining an opening for receiving said cross rod only in one angular position of said bracket means and for embracing said cross rod in said predetermined fixed position upon rotation of said bracket means to a second position thereof.
Claim 2
Independent Claim
122 words
An apparatus including a motor vehicle having vertically swinging lift arm means for supporting, lifting and rotating an implement, support means comprising an implement carried by said lift arm means, a plurality of transversely spaced, parallel bracket means on said support means, and attachment means comprising load engaging means and a transversely extending cross rod of non-circular cross section, said attachment means being positionable on the ground with said cross rod in a predetermined fixed position. said bracket means comprising relatively fixed means defining an opening for receiving said cross rod only in one angular position of said bracket means and for embracing said cross rod in said predetermined fixed position upon rotation of said bracket means to a second position thereof.
Claim 3
Dependent Claim
24 words
The apparatus of claim 1, wherein said opening is a generally L-shaped opening having an entry portion extending vertically and a rearwardly extending portion.
Claim 4
Dependent Claim
14 words
The apparatus of claim 2, said cross rod having a generally triangular cross section.
Claim 5
Dependent Claim
24 words
The apparatus of claim 3, said cross rod being relatively thick at the front portion thereof and relatively thin at the rear portion thereof.
Claim 6
Dependent Claim
26 words
The apparatus of claim 4, said cross rod comprising a pair of cylindrical elements of circular cross section and different diameters secured together in parallel relationship.
Claim 7
Dependent Claim
30 words
The apparatus of claim 1, said cross rod comprising a forwardly positioned element of circular cross section and a rearwardly positioned element of smaller circular cross section secured parallel thereto.
Claim 8
Dependent Claim
20 words
The apparatus of claim 6, wherein a line connecting the centers of said elements being inclined upwardly at approximately 30*.
Claim 9
Dependent Claim
10 words
The apparatus of claim 1, said implement comprising a bucket.
Claim 10
Dependent Claim
12 words
The apparatus of claim 8, said attachment means comprising fork lift means.
Claim 11
Dependent Claim
12 words
The apparatus of claim 1, said attachment means comprising fork lift means.
Claim 12
Dependent Claim
44 words
The apparatus of claim 10, said fork lift means comprising plural forks each comprising a horizontal lifting element and a vertical extension element, said vertical extension elements each having an opening at the upper end thereof slidably and non-rotatably receiving said cross rod therein.
Claim 13
Dependent Claim
20 words
The apparatus of claim 1, and releasable means for preventing rotation of said attachment means relative to said support means.
Claim 14
Dependent Claim
11 words
The apparatus of claim 12, said releasable means comprising a chain.
Claim 15
Dependent Claim
21 words
The apparatus of claim 1, said attachment having means at the lower and upper portions thereof for securement of a chain.
Claim 16
Dependent Claim
55 words
The apparatus of claim 1, said attachment means comprising fork lift means comprising plural forks each including a horizontal lifting element and a vertical extension element, the forwardly facing juncture thereof being free of gussets and radius, whereby a load having right angled surfaces may engage both said elements of each said fork lift meaNs.
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) | 1977-03-04 | 1977-09-03 | 1978-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-04 | 1981-09-03 | 1982-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-04 | 1985-09-03 | 1986-03-05 | $7700.00 | Window Closed / Lapsed |