US3584494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-flexibility steel wire and method of treating same
Assignee: Huettenwerk Oberhausen AG
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Filing: 1969-05-20
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Granted: 1971-06-15
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Expires: 1989-05-20
Abstract
Abstract Method of shaping foam metal products to provide accurate fit of such products with surfaces such as ribbed or grooved surfaces of a rigid body of metal, glass, plastic and the like by crushing surface regions of a foam metal blank against the surface to which product is to fit. Crushing operation is carried out by progressively pressing blank against surface, with relative movement between blank and surface in direction of length of ribs or grooves, until, under combined effect of pressure and friction, surface regions of the blank permanently assume shape of surface. Relative movement and heat of friction imparts desirable burnishing and densification of the crushed surface regions of the foam metal product. Method provides low cost procedure for producing scrapers, doctor blades, walls or partitions which must accurately fit against a grooved or ribbed surface even though such surface has irregularly spaced grooves or ribs of nonuniform depth or height.
Inventors
- 👤 Hans Geipel
- 👤 Echehard Forster
- 👤 Wilfried Heinemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:47
CPC Classifications
C; C21; C21D; C21D8/00; C21D8/06; B; B21; B21B; B21B45/00; B21B45/02; B21B45/0203; B21B45/0209; B21B45/0215; B21B45/0224; C21D9/00; C21D9/52; C21D9/525; Y; Y10; Y10S; Y10S72/00; Y10S72/70
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
78 words
Method in accordance with claim 1 in which said body of rigid material is an endless belt having ribs and grooves formed in a surface of said belt, said ribs and grooves extending parallel with the length of said belt, and wherein said relative sliding movement is effected by driving said belt lengthwise through an endless path while said foam metal body is pressed against the surface of said belt in which said ribs and grooves are formed.
Claim 2
Dependent Claim
76 words
Method in accordance with claim 1 in which said body of rigid material is a cylindrical roll having ribs and grooves formed in the cylindrical surface of said roll, said ribs and grooves extending circumferentially of said roll, and wherein said relative sliding movement is effected by rotating said roll about the cylindrical axis thereof while said foam metal body is pressed against the surface of said roll in which said ribs and grooves are formed.
Claim 3
Dependent Claim
69 words
Method in accordance with claim 1 in which the pressing of sAid one surface of said foam metal body against said surface of said body of rigid material is effected by pressure exerted upon said foam metal body through a rigid backing member which engages said foam metal body over an area at least substantially coextensive with the area of said one surface of said foam metal boey body.
Claim 4
Dependent Claim
68 words
Method in accordance with claim 2 in which the pressing of said one surface of said foam metal body against said surface of said body of rigid material is effected by pressure exerted upon said foam metal body through a rigid backing member which engages said foam metal body over an area at least substantially coextensive with the area of said one surface of said foam metal body.
Claim 5
Dependent Claim
68 words
Method in accordance with claim 3 in which the pressing of said one surface of said foam metal body against said surface of said body of rigid material is effected by pressure exerted upon said foam metal body through a rigid backing member which engages said foam metal body over an area at least substantially coextensive with the area of said one surface of said foam metal body.
Claim 6
Dependent Claim
188 words
Method for shaping regions of a foam metal body adjacent one surface thereof to conform to the shape of a surface of a body of rigid material wherein said last-named surface has formed therein a plurality of parallel ribs and grooves, comprising progressively pressing said one surface of said foam metal body against said surface of said body of rigid material while causing relative sliding movement between said foam metal body and said body of rigid material in a direction parallel with said parallel ribs and grooves, thereby to cause progressive collapse of the foam structure of said foam metal body only in localized regions of said foam metal body adjacent the areas of contact between said one surface of said foam metal body and said ribs and grooves, and continuing said step of progressively pressing until portions of said one surface of said foam metal body come into contact with the bottoms of the grooves in said body of rigid material, thereby forming in said foam metal body a plurality of notches and projections conforming respectively with said ribs and grooves in said body of rrrrrrrriggid material.
Claim 7
Dependent Claim
105 words
Method in accordance with claim 7 wherein said foam metal body having said notches and projections formed therein is taken out of contact with said body of riigid material and a predetermined amount of the foam metal of said foam metal body is then removed from the ends of at least some of said projections to afford a final fit between said foam metal body and said surface of said body of rigid material wherein a space is provided between the ends of those of said projections from which said predetermined amount of foam metal is removed and the bottoms of said grooves corresponding therewith.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |