Patent US3920214A successfully refreshed from Google Patents.
US3920214A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exterior form spreader system for threaded end concrete ties
Assignee: Individual
•
Filing: 1974-11-21
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Granted: 1975-11-18
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Expires: 1994-11-21
Abstract
Abstract An externally controlled spreader system is designed for the adjustment of forms in both lateral directions, and is capable of being remotely activated as the forming operations require. This system is advantageously built into existing tie holding devices and includes a nut having a continuous circular notch on its exterior surface with an elongated member having a slotted hole adapted to be slideably connected to a conventional plate-washer. The slotted hole on the slideable member is modified in shape to engage or disengage the continuous notch on the nut, respectively, and consequently conform it to the position of the slideable member, without restricting its rotation. During threading, the nut exerts a force on the plate-washer assembly, which is adequately connected to the forms, and thus moves the forms laterally in the desired direction, while maintaining them constantly at any predetermined distance apart through the rigid tie rod.
Inventors
- 👤 Peter R Lovisa
- 👤 Dusan Tausanovitch
- 👤 Tullio E Lovisa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:52
CPC Classifications
E; E04; E04G; E04G17/00; E04G17/06; E04G17/065; E04G17/0651; E04G17/0652
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
169 words
An exterior spreader system for threaded end ties having a longitudinal axis and for permitting adjustment of concrete forms in both lateral directions substantially normal to said axis, comprising nut means with notch associated therewith, a platewasher assembly for securement to the adjacent forms and for releasable coupling with the notch and nut means, the nut means with notch being located at one end and forming an integral part of a tie rod, the nut means adapted to bear on the exterior of the plate-washer assembly and the plate-washer assembly including shiftable means for entering into and retracting from the notch, the assembly including a plate and the shiftable means including a washer shiftably connected with the plate, the plate adapted to be nailed to the walers of the forms, the washer having a hole having a portion large enough to permit the notch to project therethrough and another portion of reduced dimension to engage with surfaces of the notch to releasably lock the assembly to the nut means.
Claim 2
Dependent Claim
169 words
An exterior spreader system for threaded end ties having a longitudinal axis and for permitting adjustment of concrete forms in both lateral directions substantially normal to said axis, comprising nut means with notch associated therewith, a platewasher assembly for securement to the adjacent forms and for releasable coupling with the notch and nut means, the nut means with notch being located at one end and forming an integral part of a tie rod, the nut means adapted to bear on the exterior of the plate-washer assembly and the plate-washer assembly including shiftable means for entering into and retracting from the notch, the assembly including a plate and the shiftable means including a washer shiftably connected with the plate, the plate adapted to be nailed to the walers of the forms, the washer having a hole having a portion large enough to permit the notch to project therethrough and another portion of reduced dimension to engage with surfaces of the notch to releasably lock the assembly to the nut means.
Claim 3
Dependent Claim
25 words
The invention in accordance with claim 1, wherein a waler holder is coupled with the assembly for connecting walers to the studs of the forms.
Claim 4
Dependent Claim
178 words
An exterior spreader system for threaded end ties having a longitudinal axis and for permitting adjustment of concrete forms in both lateral directions substantially normal to said axis, comprising nut means with notch associated therewith, a plate-washer assembly for securement to the adjacent forms and for releasable coupling with the notch and nut means, the nut means with notch forming an integral part of an internally threaded wing nut adapted to be coupled with the threaded end of a tie rod, and the nut means adapted to bear on the exterior of the plate-washer assembly and the plate-washer assembly includes shiftable means for entering into and retracting from the notch, the assembly including a plate and the shiftable means including a washer shiftably connected with the plate, the plate adapted to be nailed to the walers of the forms, the washer having a hole having a portion large enough to permit the notch to project therethrough and aNother portion of reduced dimension to engage with surfaces of the notch to releasably lock the assembly to the nut means.
Claim 5
Dependent Claim
178 words
An exterior spreader system for threaded end ties having a longitudinal axis and for permitting adjustment of concrete forms in both lateral directions substantially normal to said axis, comprising nut means with notch associated therewith, a plate-washer assembly for securement to the adjacent forms and for releasable coupling with the notch and nut means, the nut means with notch forming an integral part of an internally threaded wing nut adapted to be coupled with the threaded end of a tie rod, and the nut means adapted to bear on the exterior of the plate-washer assembly and the plate-washer assembly includes shiftable means for entering into and retracting from the notch, the assembly including a plate and the shiftable means including a washer shiftably connected with the plate, the plate adapted to be nailed to the walers of the forms, the washer having a hole having a portion large enough to permit the notch to project therethrough and aNother portion of reduced dimension to engage with surfaces of the notch to releasably lock the assembly to the nut means.
Claim 6
Dependent Claim
25 words
The invention in accordance with claim 3, wherein a waler holder is coupled with the assembly for connecting walers to the studs of the forms.
Claim 7
Dependent Claim
189 words
A concrete form tie rod assembly comprising a tie rod having a longitudinal axis and at least one threaded end, an exterior spreader system for coupling with the threaded end tie and for permitting adjustment of concrete forms in both lateral directions substantially normal to the rod axis comprising nut means with notch associated therewith, a plate-washer assembly for securement to the adjacent forms and for releasable coupling with the notch and nut means, the nut means with notch being located at one end and forming an integral part of a tie rod, the nut means adapted to bear on the exterior of the platewasher assembly and the plate-washer assembly including shiftable means for entering into and retracting from the notch, the assembly including a plate and the shiftable means including a washer shiftably connected with the plate, the plate adapted to be nailed to the walers of the forms, the washer having a hole having a portion large enough to permit the notch to project therethrough and another portion of reduced dimension to engage with surfaces of the notch to releasably lock the assembly to the nut means.
Claim 8
Dependent Claim
189 words
A concrete form tie rod assembly comprising a tie rod having a longitudinal axis and at least one threaded end, an exterior spreader system for coupling with the threaded end tie and for permitting adjustment of concrete forms in both lateral directions substantially normal to the rod axis comprising nut means with notch associated therewith, a plate-washer assembly for securement to the adjacent forms and for releasable coupling with the notch and nut means, the nut means with notch being located at one end and forming an integral part of a tie rod, the nut means adapted to bear on the exterior of the platewasher assembly and the plate-washer assembly including shiftable means for entering into and retracting from the notch, the assembly including a plate and the shiftable means including a washer shiftably connected with the plate, the plate adapted to be nailed to the walers of the forms, the washer having a hole having a portion large enough to permit the notch to project therethrough and another portion of reduced dimension to engage with surfaces of the notch to releasably lock the assembly to the nut means.
Claim 9
Dependent Claim
25 words
The invention in accordance with claim 5, wherein a waler holder is coupled with the assembly for connecting walers to the studs of the forms.
Claim 10
Dependent Claim
22 words
The invention in accordance with claim 5, wherein the concrete form tie rod assembly is coupled with a starting and closing form.
Claim 11
Dependent Claim
200 words
A concrete form tie rod assembly comprising a tie rod having a longitudinal axis and at least one threaded end, an exterior spreader system for coupling with the threaded end tie and for permitting adjustment of concrete forms in both lateral directions substantially normal to the rod axis comprising nut means with notch associated therewith, a plate-washer assembly for securement to the adjacent forms and for releasable coupling with the notch and nut means, the nut means and notch forming an integral part of an internally threaded wing nut adapted to be coupled with the threaded end of a tie rod, and the nut means adapted to bear on the exterior of the plate-washer assembly and the plate-washer assembly includes shiftable means for entering into and retracting from the notch, the assembly including a plate and the shiftable means including a washer shiftably connected with the plate, the plate adapted to be nailed to the walers of the forms, the washer having a hole having a portion large enough to permit the notch means to project therethrough and another portion of reduced dimension to engage with surfaces of the notch means to releasably lock the assembly to the nut means.
Claim 12
Dependent Claim
200 words
A concrete form tie rod assembly comprising a tie rod having a longitudinal axis and at least one threaded end, an exterior spreader system for coupling with the threaded end tie and for permitting adjustment of concrete forms in both lateral directions substantially normal to the rod axis comprising nut means with notch associated therewith, a plate-washer assembly for securement to the adjacent forms and for releasable coupling with the notch and nut means, the nut means and notch forming an integral part of an internally threaded wing nut adapted to be coupled with the threaded end of a tie rod, and the nut means adapted to bear on the exterior of the plate-washer assembly and the plate-washer assembly includes shiftable means for entering into and retracting from the notch, the assembly including a plate and the shiftable means including a washer shiftably connected with the plate, the plate adapted to be nailed to the walers of the forms, the washer having a hole having a portion large enough to permit the notch means to project therethrough and another portion of reduced dimension to engage with surfaces of the notch means to releasably lock the assembly to the nut means.
Claim 13
Dependent Claim
26 words
The invention in accordance with claim 8, wherein a waler holder is coupled with the assembly for connecting the walers to the studs of the forms.
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) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |