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US3571878A Expired / Lapsed US ⏱️ 0.0 years remaining

Industrial rolls

Assignee: Teledyne Inc
•
Filing: 1968-07-01
•
Granted: 1971-03-23
•
Expires: 1988-07-01
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Abstract

Abstract The improved industrial roll has axially spaced, preferably elastomeric, cylindrical head members with a beam extending therebetween. A core, preferably of rigid urethane foam, extends cylindrically between the head members and encases the beam. The head members and core are, in turn, encased within a skin that is preferably a filled polyester resin, the skin being locked to the head members. A coupling may be utilized to assist with torsional load transfer between the beam and each head member, and blades may be used to transfer such loads between the beam and the core. To make such a roll, the head members are positioned at the ends of a beam and a core is molded around the beam and between the head members. The resulting skeletal roll is then provided with the skin that locks the head members to the core. The apparatus for applying the skin comprises a winder for wrapping a ribbonlike skin component helically about the skeletal roll. Sufficient wraps are made completely to encase the core, and a drive mechanism employing a lost motion connection wraps additional lengths of ribbon into a lock groove in each head member to join the components together in an integral roll.

Inventors

  • 👤 Sterling W Alderfer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 14:18
CPC Classifications
F; F16; F16C; F16C13/00; B; B65; B65H; B65H75/00; B65H75/02; B65H75/04; B65H75/08; B65H81/00; D; D06; D06B; D06B23/00; D06B23/02; B65H2701/00; B65H2701/30; B65H2701/31; F16C2340/00

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 53 words
An industrial roll comprising, a pair of opposed, spaced head members, a lock groove in each of said head members, a substantially solid core of rigid urethane foam extending between said head members, and a skin encasing said core and extending into said lock grooves integrally to join the components of said roll.
Claim 2
Dependent Claim 53 words
An industrial roll comprising, a pair of opposed, spaced head members, a lock groove in each of said head members, a substantially solid core of rigid urethane foam extending between said head members, and a skin encasing said core and extending into said lock grooves integrally to join the components of said roll.
Claim 3
Dependent Claim 38 words
An industrial roll, as set forth in claim 1, in which the head members are substantially cylindrical, the radially outer surface of said head membeRs having a radially recessed lock groove, said skin being received in said groove.
Claim 4
Dependent Claim 25 words
An industrial roll, as set forth in claim 2, in which the head members are a urethane elastomer and the skin a reinforced polyester resin.
Claim 5
Dependent Claim 37 words
An industrial roll, as set forth in claim 2, in which the head members have a hub portion, a beam means being embedded in said core and extending between the hub portions of said opposed head members.
Claim 6
Dependent Claim 31 words
An industrial roll, as set forth in claim 4, in which the head members are a urethane elastomer, the core a rigid urethane foam and the skin a reinforced polyester resin.
Claim 7
Dependent Claim 29 words
An industrial roll, as set forth in claim 5, in which the hub portion of said head member has an aperture, said beam means being anchored within said aperture.
Claim 8
Dependent Claim 45 words
An industrial roll, as set forth in claim 6, in which a torsion transfer coupler is embedded in at least one of said head members, said coupler having a base plate and a socket portion, the beam means being nonrotatably received within said socket portion.
Claim 9
Dependent Claim 77 words
An industrial roll, as set forth in claim 7, in which a transverse wall extends radially of said hub portion and terminates in a rim portion, said lock groove being recessed in said rim portion, the base plate of said coupler being embedded in said transverse wall and the socket portion embedded within said hub portion, the base plate also having a plurality of bonding bores, the material of said transverse wall extending through said bonding bores.
Claim 10
Dependent Claim 28 words
An industrial roll, as set forth in claim 6, in which the beam means has torsional transfer blades extending generally transversely of said beam means into said core.
Claim 11
Dependent Claim 25 words
An industrial roll, as set forth in claim 9, in which the hub portion of said head member is slotted to receive said transfer blades.

References Cited (Backward Citations)

US352227A Cited
US2546304A Cited
US3105786A Cited
FR1429360A Cited
US3398915A Cited
US3322373A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-03-22 1974-09-21 1975-03-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-03-22 1978-09-21 1979-03-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-03-22 1982-09-21 1983-03-23 $7700.00 Window Closed / Lapsed

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