US3739666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube cutting head structure
Assignee: Carrier Corp
•
Filing: 1972-01-17
•
Granted: 1973-06-19
•
Expires: 1992-01-17
Abstract
Abstract A rotary tube cutting head structure has only one movable element in the form of a cutter support carrying a cutter at one side of the tube and having a weighted portion at the opposite side of the tube. Upon rotation of the head, the weighted portion of the support effects movement of the cutter by centrifugal force transversely of the tube to sever the same. Means is provided to yieldingly oppose movement of the cutter support by centrifugal force. There is stop means to limit movement of the cutter toward the tube and also in a direction from the tube. A counterweight is provided to reduce vibration of the head at high speed rotation thereof.
Inventors
- 👤 W Wright
- 👤 M Mathewson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:42
CPC Classifications
B; B23; B23D; B23D21/00; B23D21/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49103; Y10T82/00; Y10T82/16; Y10T82/16229; Y10T82/16262; Y10T82/16295; Y10T82/16426; Y10T82/16442; Y10T82/16459; Y10T82/16541; Y10T82/25; Y10T82/2529
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
233 words
A tube cutting head structure comprising a body for attachment to a rotatable drive spindle, said body being formed at one end with an open recess, a cutter support mounted in said recess, a cutter means mounted on said support at one side of a first plane extending diametrically of the axis of rotation of said head, said support being formed with a weighted portion located at the opposite side of said plane, a pair of tube backup rolls, each of said rolls being journaled on a roll support fixedly secured to said head, roll supports being located in an area at the opposite side of said first plane and being positioned at opposite sides of a second plane extending diametrically of the axis of said head and perpendicular to said first plane, said head being formed at the axis thereof with an aperture for the reception of a stationary tube to be cut, said weighted portion of said cutter support acting by centrifugal force upon rotation of said head to move said cutter means in a direction parallel to said second plane into cutting engagement with a tube positioned in said aperture, said back-up rolls being positioned for engagement by said tube during the cutting operation, means yieldingly opposing movement of said cutter support by said centrifugal force, and stop means to limit movement of said cutter support by the centrifugal action.
Claim 2
Dependent Claim
233 words
A tube cutting head structure comprising a body for attachment to a rotatable drive spindle, said body being formed at one end with an open recess, a cutter support mounted in said recess, a cutter means mounted on said support at one side of a first plane extending diametrically of the axis of rotation of said head, said support being formed with a weighted portion located at the opposite side of said plane, a pair of tube backup rolls, each of said rolls being journaled on a roll support fixedly secured to said head, roll supports being located in an area at the opposite side of said first plane and being positioned at opposite sides of a second plane extending diametrically of the axis of said head and perpendicular to said first plane, said head being formed at the axis thereof with an aperture for the reception of a stationary tube to be cut, said weighted portion of said cutter support acting by centrifugal force upon rotation of said head to move said cutter means in a direction parallel to said second plane into cutting engagement with a tube positioned in said aperture, said back-up rolls being positioned for engagement by said tube during the cutting operation, means yieldingly opposing movement of said cutter support by said centrifugal force, and stop means to limit movement of said cutter support by the centrifugal action.
Claim 3
Dependent Claim
30 words
A tube cutting head structure as set forth in claim 1 including a counterweight fixedly secured in said recess and operable to counterbalance the weighted portion of said cutter support.
Claim 4
Dependent Claim
29 words
A tube cutting head structure as set forth in claim 1 wherein said cutter support is movable relative to said body in a direction parallel to said second plane.
Claim 5
Dependent Claim
29 words
A tube cutting head structure as set forth in claim 1 wherein said back-up roll supports are co-operable with said cutter support to guide the same during movement thereof.
Claim 6
Dependent Claim
35 words
A tube cutting structure as set forth in claim 1 wherein a counterweight is fixedly mounted in said recess at the side of said first plane opposite to said weighted portion of said cutter support.
Claim 7
Dependent Claim
45 words
A tube cutting head structure as set forth in claim 1 wherein said cutter is mounted on an arm portion of said cutter support, a counterweight fixedly mounted in said recess, said counterweight being formed with a recess for the reception of said support arm.
Claim 8
Dependent Claim
39 words
A tube cutting head structure as set forth in claim 1 and including a counterweight operable to counterbalance the weighted portion of said cutter support, said counterbalance and said cutter support being mounted in said recess in co-planer relationship.
Claim 9
Dependent Claim
27 words
A tube cutting head structure as set forth in claim 1 wherein said cutter means consists of a cutter wheel journaled for free rotation upon said support.
References Cited (Backward Citations)
US2112396A
Cited
US3129621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |