US3877695A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for removing the upper piece from a cut lay
Assignee: Individual
•
Filing: 1973-06-12
•
Granted: 1975-04-15
•
Expires: 1993-06-12
Abstract
Abstract A device for removing one piece from a cut lay comprising, a plate, which is at least in part substantially horizontal, means for directing a stream of air under said plate and means for producing relative movement of said plate and the cut lay towards and away from each other.
Inventors
- 👤 George Carroll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:07
CPC Classifications
B; B65; B65H; B65H5/00; B65H5/08; A; A41; A41H; A41H43/00; A41H43/02; B65H3/00; B65H3/08; B65H3/14
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
167 words
A device for removing one piece from a horizontal cut lay comprising a plate which is at least in part substantially horizontal, gripping means including at least two elements movable toward and away from each other in a direction which is substantially horizontal, means for moving both the plate and gripping means together between a first position wherein the elements of the gripper are immediately adjacent the cut lay and a second position wherein the gripper is spaced from the cut lay, means for directing a stream of air under said plate at least when said plate and gripper are in said first position and means for closing said gripper elements after said stream of air is applied so as to engage one piece of the cut lay which is raised by said stream of air between said elements and means for opening said gripper elements when said gripper and plate are in the second position so as to release said one piece of the cut lay.
Claim 2
Independent Claim
167 words
A device for removing one piece from a horizontal cut lay comprising a plate which is at least in part substantially horizontal, gripping means including at least two elements movable toward and away from each other in a direction which is substantially horizontal, means for moving both the plate and gripping means together between a first position wherein the elements of the gripper are immediately adjacent the cut lay and a second position wherein the gripper is spaced from the cut lay, means for directing a stream of air under said plate at least when said plate and gripper are in said first position and means for closing said gripper elements after said stream of air is applied so as to engage one piece of the cut lay which is raised by said stream of air between said elements and means for opening said gripper elements when said gripper and plate are in the second position so as to release said one piece of the cut lay.
Claim 3
Dependent Claim
30 words
A device as claimed in claim 1, wherein the downstream end of said plate is curved upwardly so that said flow of the air stream thereover creates an aerodynamic lift.
Claim 4
Dependent Claim
27 words
A device as claimed in claim 1, wherein the gripping means comprises a plurality of discs which are normally urged away from each other by a spring.
Claim 5
Dependent Claim
31 words
A device as claimed in claim 1, wherein the gripping means comprises a coil spring having two or more turns which are normally spaced apart, said turns comprising said gripping elements.
Claim 6
Dependent Claim
51 words
A device as claimed in claim 4, wherein a body extends axially through said coil spring and means are provided for moving the spring relative to the body so that the turns of the spring move towards each other for the purpose of gripping a piece of a cut lay therebetween.
Claim 7
Dependent Claim
30 words
A device as claimed in claim 5, wherein a piston and cylinder are provided for moving the plate and hence producing relative movement of the cut lay and the plate.
Claim 8
Dependent Claim
37 words
A device as claimed in claim 4 wherein said turns of said coil spring are approximately hemispherical in cross section, the flat surface of the hemisphere facing away from said horizontal plate and towards said cut lay.
References Cited (Backward Citations)
US3158367A
Cited
US3194551A
Cited
US3168307A
Cited
US3253824A
Cited
US3588091A
Cited
US3738645A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |