US3650184A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curb expansion joint
Assignee: Individual
•
Filing: 1970-08-18
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Granted: 1972-03-21
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Expires: 1990-08-18
Abstract
Abstract A curb expansion joint is used in combination with a shear-type elastomeric expansion joint to seal the expansion slot extending across a bridge or similar structure. The expansion slot allows for relative movement of the various components of the bridge caused by thermal expansion and contraction. The curb expansion joint is typically fabricated in two sections. Each section comprises a first portion which is fastened to the curb by studs or the like, and a second portion comprising a wing extending laterally outwardly from the first portion in overlapping engagement with the wing portion of the other section. The two sections are bolted or otherwise secured together, and when assembled, contain vertical expansion grooves which permit the assembled joint to expand and contract jointly with the bridge deck expansion joint. A suitable cement can be used to form a waterproof seal between the bridge expansion joint and the curb expansion joint.
Inventors
- 👤 Ernest L Kolm
- 👤 Roger P Schwartz
- 👤 John A Welch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:30
CPC Classifications
E; E01; E01D; E01D19/00; E01D19/06; E01C; E01C11/00; E01C11/02; E01C11/04; E01C11/12; E01C11/126
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
130 words
A generally rectangular curb joint for use in spanning an expansion slot at the ends of a roadway expansion joint extending across a bridge or the like, said curb joint comprising a first section and a second section, each section composed of a curb fastener portion and a wing portion, the curb fastener portion of the first section adapted to be joined to the curb on one side of the slot and the curb fastener portion of the second section adapted to be joined to the curb on the other side of the slot, each of the wing portions extending laterally outwardly from the curb section, in overlapping engagement with the other wing portion, each section containing a vertically extending expansion groove between the fastener portion and the wing portion.
Claim 2
Dependent Claim
130 words
A generally rectangular curb joint for use in spanning an expansion slot at the ends of a roadway expansion joint extending across a bridge or the like, said curb joint comprising a first section and a second section, each section composed of a curb fastener portion and a wing portion, the curb fastener portion of the first section adapted to be joined to the curb on one side of the slot and the curb fastener portion of the second section adapted to be joined to the curb on the other side of the slot, each of the wing portions extending laterally outwardly from the curb section, in overlapping engagement with the other wing portion, each section containing a vertically extending expansion groove between the fastener portion and the wing portion.
Claim 3
Dependent Claim
38 words
a generally rectangular wing extending laterally from the fastener portion parallel to the exposed surface and offset therefrom a distance equal to the thickness of the wing of the first section, and forming a lap joint therewith, and
Claim 4
Dependent Claim
38 words
a generally rectangular wing extending laterally from the fastener portion parallel to the exposed surface and offset therefrom a distance equal to the thickness of the wing of the first section, and forming a lap joint therewith, and
Claim 5
Dependent Claim
25 words
a generally rectangular wing extending laterally from the fastener portion, with one surface thereof coplanar with the exposed planar surface of the fastener portion, and
Claim 6
Dependent Claim
25 words
a generally rectangular wing extending laterally from the fastener portion, with one surface thereof coplanar with the exposed planar surface of the fastener portion, and
Claim 7
Dependent Claim
36 words
The joint of claim 1 wherein each expansion groove is generally channel shaped and one side of the channel comprises a flexing member which is joined to the wing portion at the top of the groove.
Claim 8
Dependent Claim
38 words
The joint of claim 1 further including a tongue and groove joint extending along the front surface at the bottom thereof adapted to engage a corresponding tongue and groove joint on the end of a roadway expansion joint.
Claim 9
Dependent Claim
19 words
a vertical groove between the fastener portion and the wing; and C. means for joining the two wings together.
Claim 10
Dependent Claim
19 words
a vertical groove between the fastener portion and the wing; and C. means for joining the two wings together.
Claim 11
Dependent Claim
15 words
a vertical groove between the fastener portion and the wing; B. a second section comprising
Claim 12
Dependent Claim
15 words
a vertical groove between the fastener portion and the wing; B. a second section comprising
Claim 13
Dependent Claim
41 words
An elastomeric expansion joint adapted to be used at the curb of a bridge deck over and expansion gap, said joint having an exposed planar surface containing a pair of vertical expansion grooves, said joint comprising: A. a first section having
Claim 14
Dependent Claim
41 words
An elastomeric expansion joint adapted to be used at the curb of a bridge deck over and expansion gap, said joint having an exposed planar surface containing a pair of vertical expansion grooves, said joint comprising: A. a first section having
Claim 15
Dependent Claim
33 words
The joint of claim 4 wherein the groove of each section is generally channel shaped, and one wall of the groove comprises a flexing member joined to one end of the respective wing.
Claim 16
Dependent Claim
16 words
The joint of claim 5 wherein each wing has at least one reinforcing plate embedded therein.
Claim 17
Dependent Claim
40 words
The assembled joint according to claim 6 wherein the wing of the second section abuts the flexing member of the first section and the wing of the first section terminates at the edge of the groove of the second section.
Claim 18
Dependent Claim
13 words
The joint according to claim 7 assembled by fasteners passing through the wings.
Claim 19
Dependent Claim
22 words
The joint of claim 8 further including a plurality of spacer ribs on the wing of the second section extending rearwardly thereof.
Claim 20
Dependent Claim
21 words
The joint of claim 9 wherein each fastener portion is adapted to receive studs and nuts for attachment to the curb.
Claim 21
Dependent Claim
26 words
The joint of claim 10 in which the fastener portion of each section is reinforced by plate means in the area of attachment to the curb.
Claim 22
Dependent Claim
168 words
In combination with the curb of a bridge deck wherein the deck is divided into sections separated from one another by expansion gaps extending thereacross at an angle to the curb, each section along the gap provided with a recess and an elastomeric expansion joint anchored in the recess and containing longitudinally extending grooves in the upper surface thereof separated by rigid reinforcement means, which grooves become narrower and wider upon expansion and contraction of the gap, the improvement comprising an elastomeric curb expansion joint spanning the gap at the curb and composed of two sections bolted together, each section comprising a fastener portion and a reinforced wing portion Separated by a vertical expansion groove the fastener portion of each respective section anchored to one side of tHe gap and the wing portion overlapping the corresponding wing portion of the other section, the distance between the two vertical grooves corresponding to the spacing between the grooves of the expansion joint anchored to the bridge deck at the curb.
Claim 23
Dependent Claim
168 words
In combination with the curb of a bridge deck wherein the deck is divided into sections separated from one another by expansion gaps extending thereacross at an angle to the curb, each section along the gap provided with a recess and an elastomeric expansion joint anchored in the recess and containing longitudinally extending grooves in the upper surface thereof separated by rigid reinforcement means, which grooves become narrower and wider upon expansion and contraction of the gap, the improvement comprising an elastomeric curb expansion joint spanning the gap at the curb and composed of two sections bolted together, each section comprising a fastener portion and a reinforced wing portion Separated by a vertical expansion groove the fastener portion of each respective section anchored to one side of tHe gap and the wing portion overlapping the corresponding wing portion of the other section, the distance between the two vertical grooves corresponding to the spacing between the grooves of the expansion joint anchored to the bridge deck at the curb.
Claim 24
Dependent Claim
22 words
The combination of claim 12 wherein the distance between the vertical grooves is determined by the width of the overlapping wing portions.
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) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |