US3650141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming multiple hole conduit clamps and hangers
Assignee: Individual
•
Filing: 1969-08-15
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Granted: 1972-03-21
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Expires: 1989-08-15
Abstract
Abstract A method of continuously forming multiple hole conduit clamps and hangers from flat strip stock wherein individual clamps or hangers are blanked in side by side relationship longitudinally of the strip but only partially across the width of the strip so as to leave a central unblanked portion, and subsequently formed in even numbered multiples by intermittent feeding of the strip stock through a progressive die punch press. Individual clamps or hangers are partially severed from each other along their ultimate side edges leaving a central carry through portion of the strip within the clamp blank length, then progressively die formed by deformation from the free ends of each clamp or hanger blank toward the center of the strip, and finally severed from the strip in multiples of adjacent pairs of finished clamps or hangers by punching alternate clamps or hangers in opposite directions.
Inventors
- 👤 Frank W Pepe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:20
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/36; B21D35/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/49623
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
370 words
A method of continuously forming conduit clamps and hangers from flat strip stock of indefinite length, said clamps and hangers having generally similar portions thereof disposed in opposed spaced relationship with each other, said method comprising the steps of: A. intermittently feeding a flat strip stock past a plurality of serially arranged working stations at which a plurality of working operations are simultaneously carried out during the dwell portions of the intermittent feeding of the strip, B. forming at a first working station at least one pair of elongate, side by side adjacent blanks such that each blank of the pair extends from one side edge of the strip stock to the opposite side edge thereof, and each blank of the pair is separated from the strip stock along the side edge of each blank over a major portion of the length of each blank from said side edges of the strip stock toward the center thereof, but is unseparated from the strip stock over a short length of each blank adjacent the center of the strip stock, C. deforming at a first subsequent working station each blank of the pair to provide a desired configuration therein over the length of each blank, which configuration has substantially identical portions on opposite sides of the centerline of the strip stock, but which configuration remains essentially in the elongate shape of said blanks, D. deforming at a second subsequent working station each blank of the pair to bend a substantial portion of each blank on opposite sides of the centerline of the strip stock substantially out of said elongate blank shape to thereby dispose said substantial portions of said blanks in a desired opposed spaced relationship with each other, thereby providing at least one pair of finished clamps or hangers still integrally connected to each other and to the strip stock, and E. severing at a terminal working station at least the terminal pair of finished clamps or hangers simultaneously from each other and from the strip stock along the unseparated side edge portion of said terminal pair of finished clAmps or hangers whereby at least two individual clamps or hangers are simultaneously separated from the strip stock and from each other.
Claim 2
Independent Claim
370 words
A method of continuously forming conduit clamps and hangers from flat strip stock of indefinite length, said clamps and hangers having generally similar portions thereof disposed in opposed spaced relationship with each other, said method comprising the steps of: A. intermittently feeding a flat strip stock past a plurality of serially arranged working stations at which a plurality of working operations are simultaneously carried out during the dwell portions of the intermittent feeding of the strip, B. forming at a first working station at least one pair of elongate, side by side adjacent blanks such that each blank of the pair extends from one side edge of the strip stock to the opposite side edge thereof, and each blank of the pair is separated from the strip stock along the side edge of each blank over a major portion of the length of each blank from said side edges of the strip stock toward the center thereof, but is unseparated from the strip stock over a short length of each blank adjacent the center of the strip stock, C. deforming at a first subsequent working station each blank of the pair to provide a desired configuration therein over the length of each blank, which configuration has substantially identical portions on opposite sides of the centerline of the strip stock, but which configuration remains essentially in the elongate shape of said blanks, D. deforming at a second subsequent working station each blank of the pair to bend a substantial portion of each blank on opposite sides of the centerline of the strip stock substantially out of said elongate blank shape to thereby dispose said substantial portions of said blanks in a desired opposed spaced relationship with each other, thereby providing at least one pair of finished clamps or hangers still integrally connected to each other and to the strip stock, and E. severing at a terminal working station at least the terminal pair of finished clamps or hangers simultaneously from each other and from the strip stock along the unseparated side edge portion of said terminal pair of finished clAmps or hangers whereby at least two individual clamps or hangers are simultaneously separated from the strip stock and from each other.
Claim 3
Dependent Claim
94 words
A method as set forth in claim 1 wherein said forming of said pair of blanks comprises the steps of A. coining at a first working station the opposite surfaces of said strip stock only laterally thereof at spaced intervals to define the side edges of said pair of side by side adjacent blanks, and B. lancing at a second working station said side edges of each blank of the pair along said major portion of the length of each blank from said opposite side edges of the strip stock toward the center thereof.
Claim 4
Dependent Claim
107 words
A method as set forth in claim 1 wherein said deforming of each blank of said pair at said first subsequent working station is carried out by simultaneously forcing each blank into a die member having spaced apart depressions and protuberances therein which define the configuration to be provided to each blank by means of a punch holder having mating protuberances and depressions respectively such that the metal of each blank flows in said depressions from the free end edge of each blank toward the center thereof and the tensile forces from the deformation of each blank are balanced across the unseparated central portion of each blank.
Claim 5
Dependent Claim
74 words
A method as set forth in claim 1 wherein said severing of the terminal pair of finished clamps or hangers is carried out by punching the next to last clamp or hanger out of the plane of the strip stock while simultaneously supporting the last clamp or hanger in the plane of the strip stock whereby said terminal pair of clamps or hangers are simultaneously separated from the strip stock and from each other.
Claim 6
Dependent Claim
69 words
A method as set forth in claim 4 wherein said punching of said next to last clamp or hanger is accomplished by placing said next to last clamp or hanger over an aperture formed in a die member and forcing said next to last clamp or hanger through said aperture by means of a descending punch element while simultaneously supporting the last clamp or hanger on said die member.
Claim 7
Dependent Claim
182 words
A method as set forth in claim 1 wherein, in the forming of said clamps, said deforming of each blank at both said first and second subsequent working stations is carried out over the entire length of each blank in at least two stages in the first of which oppositely disposed portions of the separated portions of each blank are forced into a die member having depressions and protuberances by means of a punch holder having mating protuberances and depressions respectively which define flat end portions and adjacent flat portions disposed at substantially a 90* angle with said flat end portions of each side of each blank, with a remaining central flat portion connecting said second mentioned flat portions, and in a second stage the thus partially deformed blanks are forced into a substantially semicircular depressions carried by the punch holder by means of a substantially semicircular mating protuberance formed in the die member whereby a semicircular configuration is imparted to said remaining central flat portion to thereby form a finished clamp from each blank still integrally connected to the strip stock.
Claim 8
Dependent Claim
85 words
A method as set forth in claim 6 wherein said severing of the terminal pair of finished clamps is carried out by placing the next to last clamp over an elongate aperture formed in said die member and forcing said next to last clamp through said aperture by means of a descending punch element while simultaneously supporting the last clamp on a substantially semicircular support member carried by said die member thereby preventing deformation of said last clamp while severing said next to last clamp.
Claim 9
Dependent Claim
211 words
A method as set forth in claim 1 wherein, in the forming of said hangers, said deforming of each blank at both said first and second subsequent working stations is carried out in at least two stages in the first of which said separated portions of each blank on the oppOsite side of the unseparated central portion are forced into a die member having depressions and protuberances by means of a punch holder having mating protuberances and depressions respectively which define flat end portions, adjacent substantially semicircular portions and further adjacent flat portions disposed at an angle to the plane of the strip stock with a remaining central flat portion connecting said second mentioned flat portions, and in a second stage the thus partially deformed blanks are forced into a substantially rectangular depression carried by the punch holder which is of approximately the same dimensions as said remaining central flat portion by means of an elongate upstanding substantially rectangular mating protuberance formed in the die member whereby a semicircular configuration is imparted to the inner portions of each blank adjacent said flat end portions and are disposed generally perpendicular to said remaining central flat portion to thereby form a finished hanger from each blank still integrally connected to the strip stock.
Claim 10
Dependent Claim
104 words
A method as set forth in claim 8 wherein said severing of the terminal pair of finished hangers is carried out by placing the next to last hanger over an elongate aperture formed in said die member and forcing said next to last hanger through said aperture by means of a descending punch element while simultaneously supporting the last clamp on an elongate upstanding substantially rectangular protuberance corresponding in shape to the configuration of the central portion of the finished hanger as a support member carried by said die member thereby preventing deformation of said last hanger while severing the next to last hanger.
Claim 11
Dependent Claim
51 words
A method as set forth in claim 1 wherein said deforming at said second subsequent working station comprises the step of bending said substantial portions of each blank at approximately a 90* angle to the plane of the strip stock to thereby dispose said substantial portions in said opposed spaced relationship.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |