US3918509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tire changing apparatus
Assignee: Individual
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Filing: 1974-06-26
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Granted: 1975-11-11
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Expires: 1994-06-26
Abstract
Abstract Apparatus for mounting and dismounting tires on the rims of spoked wheels includes a stand having an annular support in a horizontal plane on which the spoked wheel rests, and a plurality of spoke engaging members extending upwardly from the annular support through the spokes of the wheels to prevent the wheels from turning with respect to the support. A lever includes a tire mounting tool at one end and a tire dismounting tool at the other end, and a brace is pivotally connectable to the lever adjacent either of its ends. The lever is bent at an angle adjacent each of its ends, and the tools at the ends of the lever can be applied to the tire while the brace is applied to the rim to provide the proper leverage when mounting or dismounting the tire with respect to the rim.
Inventors
- 👤 Robert Michale Trotter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:10
CPC Classifications
B; B60; B60C; B60C25/00; B60C25/01; B60C25/02; B60C25/025
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
122 words
Apparatus for mounting and dismounting tires on a spoked wheel including a base, a stanchion extending upwardly from said base, a support ring removably mounted on said stanchion in a horizontal attitude whereby said support ring can be inverted with respect to said stanchion, and a plurality of spoke engaging means positioned about the support ring and extending upwardly from the upper surface of said support ring and downwardly from the lower surface of said support ring, whereby a wheel having spokes therein is placed in a horizontal attitude on the support ring and the spoke engaging means protrude upwardly from the support ring into the spokes of the wheel and prevent the wheel from rotating with respect to the support ring.
Claim 2
Dependent Claim
122 words
Apparatus for mounting and dismounting tires on a spoked wheel including a base, a stanchion extending upwardly from said base, a support ring removably mounted on said stanchion in a horizontal attitude whereby said support ring can be inverted with respect to said stanchion, and a plurality of spoke engaging means positioned about the support ring and extending upwardly from the upper surface of said support ring and downwardly from the lower surface of said support ring, whereby a wheel having spokes therein is placed in a horizontal attitude on the support ring and the spoke engaging means protrude upwardly from the support ring into the spokes of the wheel and prevent the wheel from rotating with respect to the support ring.
Claim 3
Dependent Claim
115 words
The apparatus of claim 1 and further including a lever comprising an approximately rectilinear middle section and end sections each disposed at an angle with respect to the middle section, a tire dismounting tool at one end of said lever and a tire mounting tool at the other end of the lever, and a brace removably pivotally connected to lever at positions adjacent the interior of the angles of said lever, whereby the lever is positioned in an approximately horizontal attitude above the wheel and the tire is engaged by either the tire mounting tool or the tire dismounting tool and the distal end of the brace is applied to the rim of the wheel.
Claim 4
Dependent Claim
169 words
Apparatus for mounting and dismounting tires on wheels comprising support means for fixedly holding a wheel in a horizontal attitude, a lever comprising an approximately rectilinear middle portion and end portions disposed at an angle with respect to the middle portion, a tire mounting tool at one end of the leveR and a tire dismounting tool at the other end of the lever, a brace pivotally mounted at one of its ends on the lever in the included angle adjacent the intersection of the middle portion and one of the end portions of the lever, said brace being pivotally connected to the lever and movable in a plane approximately parallel to the plane in which the middle portion of the lever is present, and the distal end of said brace including a covering of high friction material, whereby the distal end of the brace is applied to the rim of the wheel and the tool at the end of the lever adjacent the brace is applied to the tire.
Claim 5
Dependent Claim
169 words
Apparatus for mounting and dismounting tires on wheels comprising support means for fixedly holding a wheel in a horizontal attitude, a lever comprising an approximately rectilinear middle portion and end portions disposed at an angle with respect to the middle portion, a tire mounting tool at one end of the leveR and a tire dismounting tool at the other end of the lever, a brace pivotally mounted at one of its ends on the lever in the included angle adjacent the intersection of the middle portion and one of the end portions of the lever, said brace being pivotally connected to the lever and movable in a plane approximately parallel to the plane in which the middle portion of the lever is present, and the distal end of said brace including a covering of high friction material, whereby the distal end of the brace is applied to the rim of the wheel and the tool at the end of the lever adjacent the brace is applied to the tire.
Claim 6
Dependent Claim
43 words
The apparatus of claim 3 and wherein said brace includes a ball at one end and said lever includes a socket to receive said ball, whereby said brace and said lever are pivotable with respect to each other about said ball and socket.
Claim 7
Dependent Claim
104 words
The apparatus of claim 3 and wherein said tire dismounting tool comprises a spade curved in a plane normal to the plane of the middle portion of the lever and the end portion of the lever that includes the tire dismounting tool, and a protrusion positioned on the convex surface of the spade, whereby the spade is inserted in the tire on the wheel between the rim of the wheel and the tire with the concave surface of the spade facing the tire, the lever pivoted about the rim until it lies approximately flat against the wheel with the protrusion located beyond the rim.
Claim 8
Dependent Claim
126 words
Apparatus for mounting and dismounting tires on wheels comprising a lever including a tire mounting tool at one end and a tire dismounting tool at the other end, a brace removably connectable to the lever adjacent either of the ends of the lever, said brace being pivotably connected to said lever about an axis normal to the length of the lever and arranged to pivot in the same plane as said lever and the distal end of said brace including a covering of high friction material, whereby the distal end of the brace is applied to the rim of the wheel and the tool at the end of the lever adjacent the brace is applied to the tire and moved about the rim of the wheel.
Claim 9
Dependent Claim
126 words
Apparatus for mounting and dismounting tires on wheels comprising a lever including a tire mounting tool at one end and a tire dismounting tool at the other end, a brace removably connectable to the lever adjacent either of the ends of the lever, said brace being pivotably connected to said lever about an axis normal to the length of the lever and arranged to pivot in the same plane as said lever and the distal end of said brace including a covering of high friction material, whereby the distal end of the brace is applied to the rim of the wheel and the tool at the end of the lever adjacent the brace is applied to the tire and moved about the rim of the wheel.
Claim 10
Dependent Claim
48 words
The apparatus of claim 6 and wherein the end portions of said lever are formed at an angle with respect to the middle portion of the lever and the brace is connected to the lever at the intersection of one of the end portions and the middle portion.
Claim 11
Dependent Claim
69 words
The apparatus of claim 6 and wherein the tire dismounting tool at one end of the lever comprises a spade curved in a plane normal to the plane of the lever and a protrusion positioned on the convex surface of said spade, whereby the spaade is inserted into the tire and the protrusion engages the rim of the wheel to prevent the spade from slipping out of the tire.
Claim 12
Dependent Claim
85 words
Apparatus for mounting and dismounting tires on a spoked wheel including a base, a stanchion extending upwardly from said base, a support ring mounted on said stanchion in a horizontal attitude, and a plurality of hook members positioned about the support ring and extending upwardly from the support ring, each of said hook members including an upright section extending upwardly from said support ring and a horizontal section with horizontal section of each finger extending approximately in the same tangential direction about the support ring.
Claim 13
Dependent Claim
85 words
Apparatus for mounting and dismounting tires on a spoked wheel including a base, a stanchion extending upwardly from said base, a support ring mounted on said stanchion in a horizontal attitude, and a plurality of hook members positioned about the support ring and extending upwardly from the support ring, each of said hook members including an upright section extending upwardly from said support ring and a horizontal section with horizontal section of each finger extending approximately in the same tangential direction about the support ring.
References Cited (Backward Citations)
US1122599A
Cited
US2273340A
Cited
US2311789A
Cited
US3130949A
Cited
US3164197A
Cited
US3191657A
Cited
US3247883A
Cited
US3589660A
Cited
US3771581A
Cited
US3789894A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |