Invalidity dossier
US 942190
Automatic-feed can-body machine.
Current assignee: Primerica Inc
Added 9/21/2026, 9:32:21 AM
Active provider: DeepSeek · deepseek-flash
Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview: US942190A
Title: Automatic-feed can-body machine.
Patent number: US942190A. Application number: US48536209A. Inventor: William E Taylor. Original assignee: American Can Co; current assignee listed as Primerica Inc (Google's list, which it states may be inaccurate).
Dates: Filed 1909-03-24; priority 1909-03-24; granted and published 1909-12-07; anticipated expiration 1926-12-07. Legal status: Expired – Lifetime.
Purpose. The patent describes machinery for automatically feeding and forming can bodies, with the described embodiment aimed at "narrow flimsy sardine can bodies." The machine receives a stack of body blanks (pile X), pushes off the lowermost blank with a reciprocating feeder (D), and advances blanks step by step through notching, edging, and body-forming stations by means of a reciprocating carrier (E) fitted with pivoted spring pawls (E′). Blanks are held flat by tension shoes (F) and guides (F′).
Plain-language scope. The notching dies (G, G′) clip the corners of each blank so the edge folds form only on the middle portion, producing a can body with a lock side seam at the middle and a lap seam at the end portions. A body-former horn (I) and wings (K) wrap the blank into shape; a soldering horn (M) carries the bodies past a fluxing device (N) and a heated molten-solder pot (O) whose slotted top plate (O″) applies a solder film to the seam. Three conveyers (R, R′) move bodies along the horn, one above and two below, with fingers engaging the body's lower corners and upper middle edge. Solder is fed as wire (Y) through feed rolls (O′). The main driving shaft is S.
Source: https://patents.google.com/patent/[US942190](/patent/US942190)/en (fetched 2026-09-21).
What the excerpt does not establish. The supplied text is explicitly an excerpt with omitted portions, and its OCR is fragmentary. It does not establish the full set of claims, all drawing details, the complete specification, the precise legal scope of any individual claim, or the accuracy of the listed assignees. No litigation, ownership-transfer, validity, or prior-art conclusions are drawn.
Generated 10/1/2026, 10:02:12 PM
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Litigation summary
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Proceedings on file (0)
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PTAB challenges
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Assignment history
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Prior art
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Obviousness
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Extensions
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Derivative works
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