Patent US3762273A successfully refreshed from Google Patents.
US3762273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Milling machine
Assignee: INT PORTABLE PIKE MILLS Ltd
•
Filing: 1971-11-29
•
Granted: 1973-10-02
•
Expires: 1991-11-29
Abstract
Abstract A milling machine for plate edge preparation having a spaced pair of track-carried milling head carriages movable the entire length of the plate and operable to simultaneously machine both side edges of a sheet or laminate plate of substantial thickness. Mounted on each carriage is a transversely adjustable milling head with a powerful intimate motor, as well as a plate edge depressor to dampen chatter and plate flutter. The milling head carriages have track-engaging guide wheels and one of each pair of tracks is adjustable for trueing. The machine may consist of separable components, transportable on wheeled vehicles, enabling it to be assembled and operated as an independent, self-contained unit in the field.
Inventors
- 👤 D Sprung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:46
CPC Classifications
B; B23; B23C; B23C3/00; B23C3/002; Y; Y10; Y10S; Y10S83/00; Y10S83/928; Y10T; Y10T409/00; Y10T409/30; Y10T409/304144; Y10T409/306664; Y10T409/307784; Y10T409/30868; Y10T83/00; Y10T83/566; Y10T83/768; Y10T83/7755; Y10T83/7763; Y10T83/7776; Y10T83/778; Y10T83/808
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
80 words
A milling machine for plate edge preparation comprising a machine platform, a plate support table thereon, a longitudinally extending pair of parallel rails along each side of said table, a wheel-supported carriage movable along each of said pairs of rails, and a power-driven milling head on each carriage, wherein the inner rail of each pair is transversely adjustable for trueing, being engaged on opposite sides by aligned threaded rods regulated by rail-moving nuts coacting with anchors secured to said platform.
Claim 2
Dependent Claim
80 words
A milling machine for plate edge preparation comprising a machine platform, a plate support table thereon, a longitudinally extending pair of parallel rails along each side of said table, a wheel-supported carriage movable along each of said pairs of rails, and a power-driven milling head on each carriage, wherein the inner rail of each pair is transversely adjustable for trueing, being engaged on opposite sides by aligned threaded rods regulated by rail-moving nuts coacting with anchors secured to said platform.
Claim 3
Dependent Claim
84 words
A milling machine for plate edge preparation comprising a machine platform, a plate support table thereon, a longitudinally extending pair of parallel rails along each side of said table, a wheel-supported carriage movable along each of said pairs of rails, and a power-driven milling head on each carriage, wherein said platform includes a wheeled vehicle as a main unit and has a side wing on each side and end extensions front and rear, rendering the machine a suitable component for a portable pipe mill.
Claim 4
Dependent Claim
84 words
A milling machine for plate edge preparation comprising a machine platform, a plate support table thereon, a longitudinally extending pair of parallel rails along each side of said table, a wheel-supported carriage movable along each of said pairs of rails, and a power-driven milling head on each carriage, wherein said platform includes a wheeled vehicle as a main unit and has a side wing on each side and end extensions front and rear, rendering the machine a suitable component for a portable pipe mill.
Claim 5
Dependent Claim
24 words
The device according to claim 2, wherein the main unit and wing extensions of said platform are supported on and level-trued by outrigger-type jacks.
Claim 6
Dependent Claim
56 words
The device according to claim 1, wherein the head of the inner rail of each pair is tapered inwardly toward the bottom and each said carriage has a confronting pair of horizontally disposed bevelled guide wheels engageable with the opposite sides of the tapered head of the rail and means for vertically adjusting said guide wheels.
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) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |