Patent US3904304A successfully refreshed from Google Patents.
US3904304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansion joints for a roadway
Assignee: HONEL HOLDINGS AG
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Filing: 1974-05-01
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Granted: 1975-09-09
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Expires: 1994-05-01
Abstract
Abstract An expansion joint for a roadway has the gap between sections divided into part-gaps by a number of bars, and cross-pieces each connected to one of the bars and all connected between a pair of joint members to be secured to the two parts of the roadway ensure that as the gap changes in size due to expansion and contraction of the roadway, the bars move to keep the part-gaps of equal size.
Inventors
- 👤 Heinrich Honegger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:18
CPC Classifications
E; E01; E01D; E01D19/00; E01D19/06; E01D19/062
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
104 words
An expansion joint for a roadway or other structure comprising at least one supporting bar for dividing the gap between two parts of the structure into part-gaps, the bar having a rigid connection to a second bar, said second bar extending across the gap between a pair of joint members arranged to be mounted in respective spaces one in the face of each of the structure parts facing the gap, the second bar cooperating with a sliding bearing in each joint member; whereby a change in the width of the gap retains the relative position of the bar in relation to both structure parts.
Claim 2
Dependent Claim
104 words
An expansion joint for a roadway or other structure comprising at least one supporting bar for dividing the gap between two parts of the structure into part-gaps, the bar having a rigid connection to a second bar, said second bar extending across the gap between a pair of joint members arranged to be mounted in respective spaces one in the face of each of the structure parts facing the gap, the second bar cooperating with a sliding bearing in each joint member; whereby a change in the width of the gap retains the relative position of the bar in relation to both structure parts.
Claim 3
Dependent Claim
34 words
A joint as claimed in claim 1 including a plurality of bars dividing the gap into part-gaps and a plurality of couplings each of which couples one of the bars to the joint members.
Claim 4
Dependent Claim
32 words
A joint as claimed in claim 2, in which each joint member has a pivot arm having a slot coupled through a sliding connection with an end of the or each coupling.
Claim 5
Dependent Claim
17 words
A joint as claimed in claim 3 in which the arms are removable from the joint members.
Claim 6
Dependent Claim
16 words
A joint as claimed in claim 4 in which the slotted arms are above the couplings.
Claim 7
Dependent Claim
20 words
A joint as claimed in claim 5 including a sealing strip for sealing each part-gap and removable from the part-gap.
Claim 8
Dependent Claim
26 words
A joint as claimed in claim 3 in which there is freedom of movement between the couplings and the joint members parallel to the pivot arms.
Claim 9
Dependent Claim
32 words
A joint as claimed in claim 7 in which there is freedom of angular movement of the couplings in relation to the joint members about the axes perpendicular to the pivot axes.
Claim 10
Dependent Claim
37 words
A joint as claimed in claim 8 in which two joint members and two couplings define a parallelogram whose shape varies as the width of the gap varies, the pivots being at opposite corners of the parallelograms.
Claim 11
Dependent Claim
27 words
A joint as claimed in claim 9 in which each joint member includes a box for insertion in the space in the face of the structure part.
Claim 12
Dependent Claim
82 words
An eXpansion joint for a gap between two parts of a roadway comprising a plurality of parallel bars spaced from one another characterised by a plurality of cross pieces parallel to and spaced from one another, and each fixed to one of the bars, two joint casings, and a pivoted arm in each casing, all the cross pieces having one end slidingly connected to the arm in one casing and the other end slidingly connected to the arm in the other casing.
Claim 13
Dependent Claim
82 words
An eXpansion joint for a gap between two parts of a roadway comprising a plurality of parallel bars spaced from one another characterised by a plurality of cross pieces parallel to and spaced from one another, and each fixed to one of the bars, two joint casings, and a pivoted arm in each casing, all the cross pieces having one end slidingly connected to the arm in one casing and the other end slidingly connected to the arm in the other casing.
Claim 14
Dependent Claim
39 words
A joint as claimed in claim 1, a plurality of said joints being arranged at intervals along the gap with the joint members of each joint mounted in spaces in the face of the structure parts facing the gap.
Claim 15
Dependent Claim
28 words
A joint as claimed in claim 1 including a slide in each casing for constraining each cross-piece to slide along a fixed axis in relation to the casing.
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) | 1978-09-08 | 1979-03-10 | 1979-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-08 | 1983-03-10 | 1983-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-08 | 1987-03-10 | 1987-09-09 | $7700.00 | Window Closed / Lapsed |