Patent US4254850A successfully refreshed from Google Patents.
US4254850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Luggage case
Assignee: Individual
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Filing: 1979-10-29
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Granted: 1981-03-10
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Expires: 1999-10-29
Abstract
Abstract Trunks and luggage having retractable wheels connected to a wheeling handle. The motion of each wheel is controlled by a cam slot so that the wheel moves out when the handle is extended but returns to storage position when the handle is retracted. Any required lost motion in extending the handle is provided by either an interlocking wire loop or a curved cam slot.
Inventors
- 👤 Harford E. Knowles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:56
CPC Classifications
A; A45; A45C; A45C5/00; A45C5/14; A45C5/146
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
127 words
In a luggage case wherein there is the combination of an opening in a wall thereof, door means registerable with said opening, wheel means stored in said case adjacent said opening, operating means for simultaneously extending and retracting said wheel means and opening and closing said door means, and handle means for actuating said operating means, the improvement in which: (a) the wheel means comprises a wheel (111) mounted on a wheel support member which is pivotally supported by said luggage case and has a first slot (106); and (b) the operating means comprises a second slot (107) adjacent said first slot, slot engaging means (104) extending through both said slots, and connection means (103) connected to said slot engaging means (104) and to said handle means.
Claim 2
Dependent Claim
127 words
In a luggage case wherein there is the combination of an opening in a wall thereof, door means registerable with said opening, wheel means stored in said case adjacent said opening, operating means for simultaneously extending and retracting said wheel means and opening and closing said door means, and handle means for actuating said operating means, the improvement in which: (a) the wheel means comprises a wheel (111) mounted on a wheel support member which is pivotally supported by said luggage case and has a first slot (106); and (b) the operating means comprises a second slot (107) adjacent said first slot, slot engaging means (104) extending through both said slots, and connection means (103) connected to said slot engaging means (104) and to said handle means.
Claim 3
Dependent Claim
20 words
The luggage case of claim 1, in which there are two such combinations and the handle means are joined together.
Claim 4
Dependent Claim
35 words
The luggage case of claim 2 wherein the handle includes a transverse portion storable in a recess in the luggage case and has manipulable locking means for locking the wheels in extended or retracted position.
Claim 5
Dependent Claim
15 words
The luggage case of claim 1 wherein each said slot is in a straight line.
Claim 6
Dependent Claim
13 words
The luggage case of claim 1 wherein said second slot (207) is curved.
Claim 7
Dependent Claim
14 words
The luggage case of claim 1 wherein the door (110) is pivotable and spring-loaded.
Claim 8
Dependent Claim
19 words
The luggage case of claim 1 wherein the door (210) is slidable and is part of said connection means.
Claim 9
Dependent Claim
26 words
The luggage case of claim 1 wherein said connection means comprises a wire loop (103) attached to the handle means and to said slot-engaging means (104).
Claim 10
Dependent Claim
43 words
The luggage case of claim 1 wherein the door (110) is pivotable and spring loaded and said connection means comprises a wire loop (103) attached to said slot-engaging means and interlockingly movable in said handle means (101) so as to provide lost motion.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-09 | 1984-09-08 | 1985-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-09 | 1988-09-08 | 1989-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-09 | 1992-09-08 | 1993-03-10 | $7700.00 | Window Closed / Lapsed |