Patent US2375456A successfully refreshed from Google Patents.
Patent US3674131A successfully refreshed from Google Patents.
US3674131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyor cleaner with elastomer spring
Assignee: Individual
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Filing: 1971-01-22
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Granted: 1972-07-04
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Expires: 1991-01-22
Abstract
Abstract An improved mount for a conveyor cleaner arm featuring a split tube about a torsionally elastic torus and wherein the arm is rigidly secured to the tube, as by welding, across the split or gap so as to fix the gap dimensionally whereby the gap provides a keyway to receive a key on the exterior of the torus.
Inventors
- 👤 Carl G Matson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:54
CPC Classifications
B; B65; B65G; B65G45/00; B65G45/10; B65G45/12; B65G45/16
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
180 words
A mount for a conveyor cleaner of the type including support means carrying a rod-like member thereon so as to resist rotation of the member relative to the support means about the length-wise axis of the member, an elastomer element in the form of a torus through which the member passes and to the interior of which the member is secured, a substantially tubular part embracing and secured to the exterior of the torus, and a scraper arm secured to the part and disposed generally as a radius from the member axis, the torus being torsionally elastic about the member axis to resist angular movement of the arm about the member axis, characterized in that the tubular part is in the form of a substantially closed ''''C'''' providing a gap parallel to the member axis and forming a keyway, key means is provided on the exterior of the torus and is received in the keyway, and the arm is rigidly secured to the tubular part in spanning relation to the gap so as to prevent dimensional changes in the gap.
Claim 2
Dependent Claim
180 words
A mount for a conveyor cleaner of the type including support means carrying a rod-like member thereon so as to resist rotation of the member relative to the support means about the length-wise axis of the member, an elastomer element in the form of a torus through which the member passes and to the interior of which the member is secured, a substantially tubular part embracing and secured to the exterior of the torus, and a scraper arm secured to the part and disposed generally as a radius from the member axis, the torus being torsionally elastic about the member axis to resist angular movement of the arm about the member axis, characterized in that the tubular part is in the form of a substantially closed ''''C'''' providing a gap parallel to the member axis and forming a keyway, key means is provided on the exterior of the torus and is received in the keyway, and the arm is rigidly secured to the tubular part in spanning relation to the gap so as to prevent dimensional changes in the gap.
Claim 3
Dependent Claim
25 words
The mount defined in claim 1, in which the arm has an enlargement thereon adjacent to and spanning the gap and secured to said part.
Claim 4
Dependent Claim
54 words
The mount defined in claim 1, in which the means mounting the member on the support means includes a second elastomer element interposed between and secured to the member and to the support means and torsionally elastic about said member axis so as to resist movement of the member relative to the support means.
Claim 5
Dependent Claim
62 words
The invention defined in claim 1, in which the interior of the torus includes and is bonded to an inner metallic sleeve, the sleeve is constrained against rotation relative to the member, the exterior of the torus includes and is bonded to an outer metallic sleeve-like portion including a projection providing said key means constrained against rotation relative to the tubular part.
Claim 6
Dependent Claim
18 words
The invention defined in claim 4, in which the inner sleeve and member are of complementary non-circular section.
Claim 7
Dependent Claim
153 words
For a conveyor cleaner, an elongated scraper arm having opposite ends, a substantially tubular part secured to one end of the arm so that the arm is substantially a radius from the axis of said part, and an elastomer torsionally elastic torus concentrically received within and secured at its exterior to the interior of said part, characterized in that the exterior of the torus is substantially embraced by and bonded to an outer metallic sleeve-like portion relatively tightly axially received within said part, said part is in the form of a substantially closed ''''C'''' providing a gap parallel to the axis of the part and opening toward said one end of the arm and said one end of the arm spans said gap and is rigidly secured to gap-bordering portions of said part so as to prevent dimensional changes in said gap, and the outer sleeve-like portion has a key fitting said gap.
Claim 8
Dependent Claim
153 words
For a conveyor cleaner, an elongated scraper arm having opposite ends, a substantially tubular part secured to one end of the arm so that the arm is substantially a radius from the axis of said part, and an elastomer torsionally elastic torus concentrically received within and secured at its exterior to the interior of said part, characterized in that the exterior of the torus is substantially embraced by and bonded to an outer metallic sleeve-like portion relatively tightly axially received within said part, said part is in the form of a substantially closed ''''C'''' providing a gap parallel to the axis of the part and opening toward said one end of the arm and said one end of the arm spans said gap and is rigidly secured to gap-bordering portions of said part so as to prevent dimensional changes in said gap, and the outer sleeve-like portion has a key fitting said gap.
Claim 9
Dependent Claim
27 words
The invention defined in claim 6, in which said one end of the arm has an enlargement thereon spanning said gap and secured to said gap-bordering portions.
Claim 10
Dependent Claim
26 words
The invention defined in claim 1, in which said arm is in the form of a bolt and said enlargement is the head of said bolt.
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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |