EP0097020A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Improvements relating to carding engines
Assignee: Carding Specialists Canada Ltd
•
Filing: 1983-06-08
•
Granted: —
•
Expires: 2003-06-08
Abstract
Abstract A carding engine having frame structures (4, 7, 8) at each side thereof between which are mounted a main carding cylinder (6) and associated takerin (9) and doffer (11). Each frame structure is of hollow construction and incorporates therein internal ducting (13 etc.) opening into the frame structure at openings (20, 29) adjacent to the region of cooperation between the takerin and main cylinder and between the main cylinder and doffer. Other openings are located in other regions of roller cooperation. The ducting opens from the upper surface of the frame structure at an opening (14) to which a vacuum extraction duct can be connected.
Inventors
- 👤 Michael Jack Rimmer
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 18:03
CPC Classifications
D; D01; D01G; D01G15/00; D01G15/02; D01G15/12; D01G15/32; D01G15/76; D01G15/763
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
75 words
A carding engine having frame structures at each side thereof, between which are mounted a main carding cylinder and associated rollers, in which each frame structure is of hollow construction and incorporates therein internal ducting opening into the respective frame structure adjacent to at least one region of cooperation between the main cylinder and an associated roller, and opening from the frame structure at a location in which a vacuum extraction duct can be mounted.
Claim 2
Dependent Claim
75 words
A carding engine having frame structures at each side thereof, between which are mounted a main carding cylinder and associated rollers, in which each frame structure is of hollow construction and incorporates therein internal ducting opening into the respective frame structure adjacent to at least one region of cooperation between the main cylinder and an associated roller, and opening from the frame structure at a location in which a vacuum extraction duct can be mounted.
Claim 3
Dependent Claim
40 words
A carding engine according to claim 1 in which the opening from each frame structure is through an upper surface of the frame structure, the opening being substantially bisected by the longitudinal.centre line of the ducting within the frame structure.
Claim 4
Dependent Claim
46 words
A carding engine according to claim 1 or claim 2 in which ducting opens into each frame structure through an inner face thereof adjacent to the regions of cooperation between the main cylinder and a doffer roller and between the main cylinder and a takerin roller.
Claim 5
Dependent Claim
46 words
A carding engine according to claim 3 in which ducting also opens into each frame structure through an inner face thereof adjacent to the regions of cooperation between a feed roller and the takerin roller and between a roll stripper and a high speed stripping roller.
Claim 6
Dependent Claim
44 words
-A carding engine according to any one of the preceding claims in which the opening from each frame structure is divided by a baffle extending transversely of the frame structure, and ducting extends in opposite longitudinal directions within the frame structure from the baffle.
Claim 7
Dependent Claim
63 words
A carding engine according to any one of the preceding claims in which the frame structure comprises a plurality of longitudinally aligned and connected frame sections, each frame section rotatably supporting at least one of the main carding cylinder and associated rollers, and each frame section incorporating ducting, the ducting in one frame section connecting with the ducting in an adjacent frame section.
Claim 8
Dependent Claim
32 words
A carding engine according to claim 6 in which ducting in one frame section is longitudinally aligned with ducting in an adjacent frame section in the region of connection between the ductings.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.