US3635273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flat tire safety roller and warning indicator
Assignee: THEODORE C PATECELL
•
Filing: 1969-10-09
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Granted: 1972-01-18
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Expires: 1989-10-09
Abstract
Abstract A safety insert or roller for inflatable tires comprising a plurality of arcuate members having detachable and pivotal clamping engagement adapted to form a ring closely engaging the drop center of a tire mounting rim and protruding beyond said rim a substantial distance in the direction of the tread of an inflated tire mounted thereon. At least the inner and outer peripheries of the assembled ring are of rigid plastic material, preferably having lubricant properties, such for example as highdensity polyethylene. Connecting structure between said inner and outer peripheries can be of the same material or a different material such as formed metal, and is fashioned to provide a combination of low weight and high tensile and compression strength. Overlapped end portions of the arcuate members when loosely joined together permit relative swinging movement facilitating assembling the device within a tire while half mounted on a rim; and the fastening means for adjacent ends of the arcuate members including bevelled means for providing circumferential clamping of the assembled ring in the tightening thereof.
Inventors
- 👤 Theodore C Patecell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:53
CPC Classifications
B; B60; B60C; B60C17/00; B60C17/04; B60C17/041; B60C17/045; B60C17/10; B60C19/00; B60C2019/006
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
243 words
A safety insert for inflatable tires of the tubeless type wherein beads at the inner open periphery of the tire are adapted to sealably engage side flanges of a mounting rim and said rim intermediate the flanges has a drop-center of reduced diameter facilitating attachment and detachment of the tire, said safety device comprising a plurality of similar arcuate members, each of said arcuate members having at each end essentially circular coupling portions of reduced thickness in the plane of said members to interfit with coupling portions on adjacent members, said circular portions having at the centers thereof coacting coupling means providing, when loosely coupled, wide coplanar pivotal movement of adjacent arcuate members, whereby after partial assemblage within a tire, and then mounting one tire bead on a rim, the subassemblage can be passed over the rim and into the drop-center thereof for final assemblage about the rim by coupling a single joint, and said coupling means providing firm clamping of interfitting coupling portions of said plurality of arcuate members to form a ring member having an inner periphery seating in the drop-center of said rim anD an outer periphery protruding beyond the flanges of said rim, said inner and outer peripheries of the ring being formed of rigid plastic material having lubricant qualities, and means joining said inner and outer peripheries in a lightweight structure providing a radial compressive strength appropriate to withstand the loads for which the particular tire is intended.
Claim 2
Dependent Claim
243 words
A safety insert for inflatable tires of the tubeless type wherein beads at the inner open periphery of the tire are adapted to sealably engage side flanges of a mounting rim and said rim intermediate the flanges has a drop-center of reduced diameter facilitating attachment and detachment of the tire, said safety device comprising a plurality of similar arcuate members, each of said arcuate members having at each end essentially circular coupling portions of reduced thickness in the plane of said members to interfit with coupling portions on adjacent members, said circular portions having at the centers thereof coacting coupling means providing, when loosely coupled, wide coplanar pivotal movement of adjacent arcuate members, whereby after partial assemblage within a tire, and then mounting one tire bead on a rim, the subassemblage can be passed over the rim and into the drop-center thereof for final assemblage about the rim by coupling a single joint, and said coupling means providing firm clamping of interfitting coupling portions of said plurality of arcuate members to form a ring member having an inner periphery seating in the drop-center of said rim anD an outer periphery protruding beyond the flanges of said rim, said inner and outer peripheries of the ring being formed of rigid plastic material having lubricant qualities, and means joining said inner and outer peripheries in a lightweight structure providing a radial compressive strength appropriate to withstand the loads for which the particular tire is intended.
Claim 3
Dependent Claim
32 words
A safety insert for inflatable tires as defined in claim 1 wherein the means joining said inner and outer peripheries comprises rigid plastic material formed integrally with said inner and outer peripheries.
Claim 4
Dependent Claim
50 words
A safety insert for inflatable tires as defined in claim 1 wherein the means joining said inner and outer peripheries comprises rigid plastic material formed integrally with said inner and outer peripheries, and having varied transverse dimension and thickness to provide an optimum balance of high strength and low weight.
Claim 5
Dependent Claim
50 words
A safety insert for inflatable tires as defined in claim 3 wherein portions of the means joining said inner and outer peripheries have the same width or transverse dimension as said peripheries and other portions may be of reduced dimension of the order of one-eighth to one-fourth inch in thickness.
Claim 6
Dependent Claim
39 words
A safety insert for inflatable tires as defined in claim 4 wherein said portions of reduced dimension are recesses uniformly spaced circumferentially of said ring to provide balance and minimize centrifugal strain in the high-speed rotation of the ring.
Claim 7
Dependent Claim
73 words
A safety insert for inflatable tires as defined in claim 1 wherein the means joining said inner and outer periphery of each arcuate member comprises a separate body portion having inner and outer bands of concentric circular contours, an integral connecting web perpendicular to said bands and a plurality of radially disposed stiffening members protruding from opposed sides of said web and integrally joined to said web and said inner and outer bands.
Claim 8
Dependent Claim
60 words
A safety insert for inflatable tires as defined in claim 6 wherein said separate body portion is fashioned from metal and the inner and outer bands of said metal body have firmly secured thereto inner and outer bands of said rigid plastic material, said bands of plastic material being at least as wide as the bands of said metal body.
Claim 9
Dependent Claim
29 words
A safety insert for inflatable tires as defined in claim 7 wherein the outer band of plastic material is substantially wider than the outer band of said metal body.
Claim 10
Dependent Claim
44 words
A safety insert for inflatable tires as defined in claim 1 wherein the inner periphery of said ring member is of a width to fit into the drop-center of said rim, and the outer periphery is at least as wide as said inner periphery.
Claim 11
Dependent Claim
22 words
A safety insert for inflatable tires as defined in claim 9 wherein said outer periphery is substantially wider than said inner periphery.
Claim 12
Dependent Claim
32 words
A safety insert for inflatable tires as defined in claim 1 wherein the inner periphery of said ring member includes means adapting said ring to engage the full width of said drop-center.
Claim 13
Dependent Claim
34 words
A safety insert for inflatable tires as defined in claim 11, wherein said last-named means comprises a plurality of circumferentially spaced lugs protruding from said inner periphery at one side of said ring member.
Claim 14
Dependent Claim
86 words
A safety insert for inflatable tires as defined in claim 1 wherein each of said arcuate members has at one end an essentially circular coupling portion extending to one side of the longitudinal centerline of said member, and at the other end an essentially circular coupling portion extending to the other side of said centerline, said first end carrying in the center of said circular portion a female coupling means and said second end carrying in the center of said circular portion, a male coupling means.
Claim 15
Dependent Claim
104 words
A safety insert for inflatable tires as defined in claim 13 wherein said male coupling means comprises a bolt having an elongated shank and protruding actuating head, the portion of said shank adjacent said actuating head having a frustoconical taper adapted to sEat in a similarly tapered aperture in the associated end of said member, and the remainder of said shank being of uniform reduced diameter and adapted to engage the female coupling means of a coacting member, said frustoconical shank and aperture imparting a circumferential clamping action when said bolt is tightened in assembling a plurality of said members as a complete ring.
Claim 16
Dependent Claim
58 words
A safety insert for inflatable tires as defined in claim 13 wherein adjacent members, when loosely joined by engagement of said male and female coupling means, are capable of relative pivotal movement about said coupling means facilitating mounting of said loosely joined members on a rim within a tire while one bead thereof is disposed within said rim.
Claim 17
Dependent Claim
64 words
A safety insert for inflatable tires as defined in claim 15 wherein said circular coupling portions have small portions of reduced radial dimension so positioned as to reduce the degree of protrusion of said pivoted members from a rim edge when the free ends thereof are within the drop-center of said rim and the pivotably coupled portions are being passed over said rim edge.
Claim 18
Dependent Claim
42 words
A safety insert for inflatable tires as defined in claim 13, wherein said circular coupling portions extend to the outer periphery of said members and overlap at said centerline to provide circumferential continuity in the outer periphery of the assembled ring member.
Claim 19
Dependent Claim
66 words
A safety insert for inflatable tires as defined in claim 1 wherein the radial dimension of said elements is such that when arranged in a tire and rim assembly, with the inner periphery closely engaging said drop-center of the rim, the outer periphery protrudes beyond the rim edge a distance which is about 30-60 percent of the protrusion of the inflated tire from said rim edge.
Claim 20
Dependent Claim
18 words
A safety insert for inflatable tires as defined in claim 1 wherein said rigid plastic material is polyethylene.
Claim 21
Dependent Claim
19 words
A safety insert for inflatable tires as defined in claim 1 wherein said rigid plastic material is high-density polyethylene.
Claim 22
Dependent Claim
18 words
A safety insert for inflatable tires as defined in claim 1 wherein said rigid plastic material is polypropylene.
Claim 23
Dependent Claim
19 words
A safety insert for inflatable tires as defined in claim 1 wherein said rigid plastic material contains inorganic filler.
Claim 24
Dependent Claim
17 words
A safety insert for inflatable tires as defined in claim 22, said inorganic filler includes fiberglass filaments.
Claim 25
Dependent Claim
27 words
A safety insert for inflatable tires as defined in claim 1 wherein said plastic material, at least adjacent the surface of said outer periphery includes stiffening means.
Claim 26
Dependent Claim
23 words
A safety insert for inflatable tires as defined in claim 24 wherein said stiffening means comprises fiberglass filaments imbedded in said plastic material.
Claim 27
Dependent Claim
27 words
A safety insert for inflatable tires as defined in claim 24 wherein said stiffening means comprises a woven body of fiberglass filaments imbedded in said plastic material.
Claim 28
Dependent Claim
28 words
A safety insert for inflatable tires as defined in claim 24 wherein the plastic material containing said stiffening means comprises separate bands peripherally secured to said arcuate members.
Claim 29
Dependent Claim
33 words
A safety insert for inflatable tires as defined in claim 28 wherein said separate bands at the outer periphery of said arcuate members are substantially wider than the remainder of said arcuate members.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |