Patent US4179847A successfully refreshed from Google Patents.
US4179847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Root ball clamp
Assignee: Individual
•
Filing: 1978-07-20
•
Granted: 1979-12-25
•
Expires: 1998-07-20
Abstract
Abstract An improved protective clamp for the root ball portion of a tree is disclosed. The clamp includes a plurality of arcuate plate members, each of which is provided with an outwardly extending foot portion at the lower end thereof. Raised re-inforcing ribs on the sides of each plate and a tie bar at the upper end thereof are additional features which provide a greatly improved protection for the root ball during removal of the tree from the ground, or when the tree is being transported, stored, or other-wise handled prior to planting, compared with the traditional "ball-burlapping".
Inventors
- 👤 Jean-Pierre F. Osterwalder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:10
CPC Classifications
A; A01; A01G; A01G23/00; A01G23/02; A01G23/04; A01G23/046
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
248 words
A root ball clamp system for protecting, surrounding and clamping the root ball portion of a tree, comprising: a plurality of plate members, each of said plate members being curved inwardly from its top edge to its lower edge and also curved inwardly from its longitudinal sides, each plate member having a foot portion at the lower end thereof which extends outwardly and downwardly from the general plane of the plate member and which acts as a base in conjunction with similarly shaped foot portions of the other plate members, each plate member having a raised reinforcing rib extending outwardly on each longitudinal side of the plate member, each of said reinforcing ribs being substantially perpendicular to the general plane of the plate member and extending upwardly beyond the top edge of said plate member, a tie bar spaced from and extending laterally across the upper end of each plate member, said tie bar being attached at each end to one of said re-inforcing ribs which extend upwardly beyond the top edge of said plate member, means extending around the periphery of said plate members at the lower ends thereof for securing the lower ends of said plate members about the root ball portion of a tree, said securing means extending upwardly over the foot portion of each plate member, and means for connecting the tie bars of said plate members to secure the upper ends of said plate members about the root ball portion of the tree.
Claim 2
Dependent Claim
248 words
A root ball clamp system for protecting, surrounding and clamping the root ball portion of a tree, comprising: a plurality of plate members, each of said plate members being curved inwardly from its top edge to its lower edge and also curved inwardly from its longitudinal sides, each plate member having a foot portion at the lower end thereof which extends outwardly and downwardly from the general plane of the plate member and which acts as a base in conjunction with similarly shaped foot portions of the other plate members, each plate member having a raised reinforcing rib extending outwardly on each longitudinal side of the plate member, each of said reinforcing ribs being substantially perpendicular to the general plane of the plate member and extending upwardly beyond the top edge of said plate member, a tie bar spaced from and extending laterally across the upper end of each plate member, said tie bar being attached at each end to one of said re-inforcing ribs which extend upwardly beyond the top edge of said plate member, means extending around the periphery of said plate members at the lower ends thereof for securing the lower ends of said plate members about the root ball portion of a tree, said securing means extending upwardly over the foot portion of each plate member, and means for connecting the tie bars of said plate members to secure the upper ends of said plate members about the root ball portion of the tree.
Claim 3
Dependent Claim
20 words
The root ball clamp of claim 1, wherein the bottom end of said plate has a thin edge shovel-like construction.
Claim 4
Dependent Claim
35 words
The root ball clamp of claim 1, wherein said foot portion is provided with walls defining a cavity which extends from the bottom end of said foot portion through to the interior of said plate.
Claim 5
Dependent Claim
117 words
A root ball clamp system for protecting, surrounding and clamping the root ball portion of a tree, comprising: a plurality of plate members, each plate member having a foot member at the lower end thereof which extends outwardly and downwardly from the general plane of the plate member and which acts as a base in conjunction with similarly shaped foot members of the other plate members, each foot member including an end piece which is detachable from an upper base portion of said foot member, said end piece being a major portion of said foot member, and means for securing the upper and lower ends of said plate members about the root ball portion of the tree.
Claim 6
Dependent Claim
117 words
A root ball clamp system for protecting, surrounding and clamping the root ball portion of a tree, comprising: a plurality of plate members, each plate member having a foot member at the lower end thereof which extends outwardly and downwardly from the general plane of the plate member and which acts as a base in conjunction with similarly shaped foot members of the other plate members, each foot member including an end piece which is detachable from an upper base portion of said foot member, said end piece being a major portion of said foot member, and means for securing the upper and lower ends of said plate members about the root ball portion of the tree.
Claim 7
Dependent Claim
50 words
The root ball clamp of claim 4, wherein said foot member is provided with walls defining a cavity within said foot member, and wherein said detachable end piece has an upper wall which extends across said cavity to engage and conform with a lower wall of said upper base portion.
References Cited (Backward Citations)
US388154A
Cited
US621405A
Cited
US1139735A
Cited
US1694410A
Cited
US2707846A
Cited
US2988393A
Cited
US3161989A
Cited
US3017719A
Cited
FR2250468A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-12-24 | 1983-06-25 | 1983-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-24 | 1987-06-25 | 1987-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-24 | 1991-06-25 | 1991-12-25 | $7700.00 | Window Closed / Lapsed |