US3822428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joint inserts for bridging expansion joints
Assignee: Stog KG Ind & Rohrleitung
•
Filing: 1973-02-21
•
Granted: 1974-07-09
•
Expires: 1993-02-21
Abstract
Abstract A joint or gap insert for bridging expansion gaps in structures, especially bridges, which includes strip means of elastic material having recess means with an arcuate cross section arranged within that region of the strip means which in installed position of said insert will be located within the region of the expansion gap to be bridged while reinforcing means extend into the strip means and are adapted to be firmly connected to the structure, the expansion gap of which is to be bridged.
Inventors
- 👤 W Stog
- 👤 R Springer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:29
CPC Classifications
E; E01; E01D; E01D19/00; E01D19/06
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
129 words
An insert for bridging a gap of an expansion joint in structures including fastening elements having sides fixed in location and free of movement, especially bridges, which comprises preloaded strip means of elastic material secured to stationary sides of the fastening elements of structures independently of temperature and having recess means arranged within that region of said strip means which in installed support position of said insert will be located within the region facing the gap to be bridged, said recess means having an unsymmetrically arched arcuate cross section with the crosssectional arc extending in a direction transverse to the longitudinal direction of said gap and thereby having a middle range of movement with a stabilizing effect upon said strip means to hinder lifting thereof in installed support position.
Claim 2
Dependent Claim
129 words
An insert for bridging a gap of an expansion joint in structures including fastening elements having sides fixed in location and free of movement, especially bridges, which comprises preloaded strip means of elastic material secured to stationary sides of the fastening elements of structures independently of temperature and having recess means arranged within that region of said strip means which in installed support position of said insert will be located within the region facing the gap to be bridged, said recess means having an unsymmetrically arched arcuate cross section with the crosssectional arc extending in a direction transverse to the longitudinal direction of said gap and thereby having a middle range of movement with a stabilizing effect upon said strip means to hinder lifting thereof in installed support position.
Claim 3
Dependent Claim
16 words
An insert according to claim 1, in which said recess means have an eccentrically arched contour.
Claim 4
Dependent Claim
72 words
An insert according to claim 2, in which said recess means comprise a plurality of recesses of an eccentrically arched shape transverse to expansion joint, and in which said recesses are arranged one behind the other when viewing them in the longitudinal direction of said strip means, the arched portion of said recesses alternately being located on different sides of the longitudinal plane of symmetry of the expansion gap to be bridged.
Claim 5
Dependent Claim
23 words
An insert according to claim 3, in which said recess means are provided with ribs extending transverse to the gap to be bridged.
Claim 6
Dependent Claim
18 words
An insert according to claim 4, in which said ribs form one integral single piece with said insert.
Claim 7
Dependent Claim
23 words
An insert according to claim 4, in which said recess means include two parallel recesses extending over the width of said insert strip.
Claim 8
Dependent Claim
31 words
An insert according to claim 6, in which each of said two parallel recesses has a dome-shaped portion and a substantially straight portion, said straight portions being adjacent to each other.
Claim 9
Dependent Claim
20 words
An insert according to claim 4, in which the ribs of adjacent recesses are offset with regard to each other.
Claim 10
Dependent Claim
15 words
An insert according to claim 4, which includes rigid reinforcing inserts arranged in said ribs.
Claim 11
Dependent Claim
32 words
An insert according to claim 1, which includes rigid section elements engaging the prelateral surfaces of said strip, and bolt means extending through said rigid section elements for bolting down the latter.
Claim 12
Dependent Claim
22 words
An insert according to claim 10, in which said rigid section elements are under a slight preload for slightly preloading said strip.
Claim 13
Dependent Claim
27 words
An insert according to claim 1, in which the width of the arcuate portion of said recess means at a maximum equals half of the length thereof.
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) | 1977-07-08 | 1978-01-07 | 1978-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-08 | 1982-01-07 | 1982-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-08 | 1986-01-07 | 1986-07-09 | $7700.00 | Window Closed / Lapsed |