Patent US3837662A successfully refreshed from Google Patents.
US3837662A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two wheeled roller skate
Assignee: Individual
•
Filing: 1972-12-13
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Granted: 1974-09-24
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Expires: 1992-12-13
Abstract
Abstract A two wheeled roller skate having supporting structure attachable to a shoe is disclosed. The supporting structure has forward and rearward wheel holders each consisting of a pair of portions disposed and spaced apart to receive a wheel between them, each such portion having a downwardly opening slot. Each wheel has a tread surface that is arcuate transversely considered and is supported by bearings that have surfaces arranged to take the load as the skate is tilted from side-to-side in use and include independently rotatable parts having projections slidably seated in the downwardly opening slots. Releasable keepers underlie the projections to block their escape from the slots in which they are seated but are movable to permit the wheels to be removed and replaced.
Inventors
- 👤 R Marks
- 👤 R Beaupre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:01
CPC Classifications
A; A63; A63C; A63C17/00; A63C17/22
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
112 words
A two wheeled roller skate comprising a pair of wheels, supporting structure attachable to a shoe, and means rotatably connecting said wheEls to said structure in longitudinal alignment, said structure including a pair of side plates, an upwardly opening U-shaped frame member to which said side plates are secured and which includes a marginal, outwardly disposed flange, and a sole plate to which the shoe is attachable and which is secured to said flange, and said side plates having transversely aligned front and rear portions extending below said frame member between which the appropriate one of the wheels is located and means connecting each wheel to the appropriate ones of said portions.
Claim 2
Dependent Claim
112 words
A two wheeled roller skate comprising a pair of wheels, supporting structure attachable to a shoe, and means rotatably connecting said wheEls to said structure in longitudinal alignment, said structure including a pair of side plates, an upwardly opening U-shaped frame member to which said side plates are secured and which includes a marginal, outwardly disposed flange, and a sole plate to which the shoe is attachable and which is secured to said flange, and said side plates having transversely aligned front and rear portions extending below said frame member between which the appropriate one of the wheels is located and means connecting each wheel to the appropriate ones of said portions.
Claim 3
Dependent Claim
19 words
The two wheeled roller skate of claim 1 in which each side plate includes an outwardly disposed stiffening flange.
Claim 4
Dependent Claim
30 words
The two wheeled roller skate of claim 2 in which the wheel connecting means are on the outer faces of said portions but inside the plane inclusive of their flanges.
Claim 5
Dependent Claim
190 words
A roller skate comprising wheels, supporting structure attachable to a shoe and including wheel holders spaced lengthwise thereof, each holder including a pair of transversely spaced, downwardly disposed portions, and means rotatably connecting each wheel to the appropriate one of said pairs of portions, said means including bearing means for each wheel, each bearing means including axial, independently rotatable members one at each wheel side and each including an outwardly disposed projection, and each pair of portions having transversely aligned pairs of downwardly opening slots, the slots and projections being so shaped and dimensioned that the projections may be slidably entered in the appropriate slots and held against turning with the projections seated against their upper ends, and a resilient keeper plate for each slot including an attaching portion welded to the outer face of the appropriate slotted portion above the slot thereof and a retainer portion underlying the associated projection to prevent the projection from escaping from the proximate slot, the retainer portion of each keeper plate being so spaced from the attaching portion thereof that the retainer portion may be readily pried outwardly to free the associated projection.
Claim 6
Dependent Claim
190 words
A roller skate comprising wheels, supporting structure attachable to a shoe and including wheel holders spaced lengthwise thereof, each holder including a pair of transversely spaced, downwardly disposed portions, and means rotatably connecting each wheel to the appropriate one of said pairs of portions, said means including bearing means for each wheel, each bearing means including axial, independently rotatable members one at each wheel side and each including an outwardly disposed projection, and each pair of portions having transversely aligned pairs of downwardly opening slots, the slots and projections being so shaped and dimensioned that the projections may be slidably entered in the appropriate slots and held against turning with the projections seated against their upper ends, and a resilient keeper plate for each slot including an attaching portion welded to the outer face of the appropriate slotted portion above the slot thereof and a retainer portion underlying the associated projection to prevent the projection from escaping from the proximate slot, the retainer portion of each keeper plate being so spaced from the attaching portion thereof that the retainer portion may be readily pried outwardly to free the associated projection.
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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) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |