Patent US2589018A successfully refreshed from Google Patents.
Patent US3680927A successfully refreshed from Google Patents.
US3680927A
Expired / Lapsed
US
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Apparatus for forming an articulated track
Assignee: Gebrueder Hennig GmbH
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Filing: 1971-04-22
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Granted: 1972-08-01
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Expires: 1991-04-22
Abstract
Abstract Apparatus for forming an articulated track comprising a plurality of identical members adapted for pivotal connection to one another, each member having at one edge a coupling projection flanked by arcuate recesses and having at the opposite edge a coupling socket formed by arcuate, spaced apart arms. The socket of each member is adapted to accommodate the projection of an adjacent member, and the recesses and arms are so shaped as to permit pivotal movement of the connected members. The spacing between the arms is so related to the depths of the recesses and to the lengths of the arms that pivotal movement of connected members does not withdraw the arms from the recesses.
Inventors
- 👤 Horst Neureuther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:35
CPC Classifications
B; B65; B65G; B65G17/00; B65G17/06; B65G17/08; B23; B23Q; B23Q11/00; B23Q11/08; B23Q11/085; B65G2201/00; B65G2201/02; B65G2201/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
120 words
Apparatus for forming an articulated track or the like comprising a number of similar members adapted for pivotal connection to one another, each of said members having at one side thereof a coupling projection and at the opposite side thereof a coupling socket, said projection being flanked by recesses and said socket being formed by a pair of arms having a space between their ends, the coupling projection of each member being adapted for accommodation in the coupling socket of the adjacent member with the arms of said socket received in said recesses, the space between said arms being such as to enable relative pivotal movement between two connected members without removing the ends of said arms from said recesses.
Claim 2
Dependent Claim
120 words
Apparatus for forming an articulated track or the like comprising a number of similar members adapted for pivotal connection to one another, each of said members having at one side thereof a coupling projection and at the opposite side thereof a coupling socket, said projection being flanked by recesses and said socket being formed by a pair of arms having a space between their ends, the coupling projection of each member being adapted for accommodation in the coupling socket of the adjacent member with the arms of said socket received in said recesses, the space between said arms being such as to enable relative pivotal movement between two connected members without removing the ends of said arms from said recesses.
Claim 3
Dependent Claim
19 words
Apparatus as set forth in claim 1 wherein the coupling projection and the coupling socket have an arcuate profile.
Claim 4
Dependent Claim
19 words
Apparatus as set forth in claim 1 wherein said arms also have an arcuate profile on their outer surfaces.
Claim 5
Dependent Claim
35 words
Apparatus as set forth in claim 3 wherein the surfaces of said recesses have an arcuate profile whose radius of curvature and center of curvature correspond to those of the outer surfaces of said arms.
Claim 6
Dependent Claim
53 words
Apparatus as set forth in claim 3 wherein the surfaces of said recesses have an arcuate profile which differs in radius of curvature and/or center of curvature from the outer surfaces of the arms, whereby the outer edges of the end surfaces of said recesses lie against the outer surfaces of the arms.
Claim 7
Dependent Claim
36 words
Apparatus as set forth in claim 5 wherein said member is made of resilient material whereby the two outer edges of said surfaces of said recesses may engage the outer surfaces of said arm under tension.
Claim 8
Dependent Claim
14 words
Apparatus as set forth in claim 1 wherein said arms are of unequal length.
Claim 9
Dependent Claim
25 words
Apparatus as set forth in claim 1 wherein each of said members is made from glass-fiber reinforced plastic by an injection moulding or extrusion process.
Claim 10
Dependent Claim
21 words
Apparatus as set forth in claim 1 wherein the upper side of each of said members is provided with upstanding projections.
References Cited (Backward Citations)
US853129A
Cited
US1931531A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |