Patent US879964A successfully refreshed from Google Patents.
Patent US4950003A successfully refreshed from Google Patents.
US4950003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Luggage cart
Assignee: Individual
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Filing: 1989-06-30
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Granted: 1990-08-21
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Expires: 2009-06-30
Abstract
Abstract Improvements for slidably mounting a size-adjustable luggage cart handle inverter U-shape in a lower U-shape, consisting of each leg of the upper U-shape being disposed through a hole in a cap covering the opening of the lower U-shape and having an integrally molded hub with a threaded bore to thereby increase the number of teeth threadably engaging the threaded member which bears against the upper U-shape in any selected position of its sliding movement, which determines the size of the handle, and thus obviate thread-stripping, wobble and other such defects.
Inventors
- 👤 Gilbert J. Holtz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:32
CPC Classifications
B; B62; B62B; B62B1/00; B62B1/10; B62B1/12; B62B1/125; B62B2202/00; B62B2202/24; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7041
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
351 words
Improvements for a luggage cart of the type having a size-adjustable handle comprised of a telescoped together cooperating pair of a first lower hollow tubular handle member with an upper opening therein in which is slidably disposed a second upper tubular handle member wherein the extent of the extension of said second handle member beyond said first handle member upper opening establishes the size of said handle of said luggage cart, said second upper tubular member having first and second flared ends, said first lower hollow tubular handle member having a first and second ends having a crimped portions therein, said crimps retaining said flared ends of said second tubular member within said first lower hollow tubular member, a hollow cap disposed in covering relation over said first handle member upper opening having a central opening in aligned relation to said upper opening and a cylindrical wall in encircling relation about the upper end of said first handle member and extending in covering relation over said crimps therein, said central opening of said cap being slightly undersized with respect to the upper opening of said first lower handle member, to thereby provide an optimum sliding clearance for the size-adjusting sliding movement of said second upper handle member, a laterally extending hub embodied in said cap wall oriented transverse to the sliding direction of said second handle member, said hub having a threaded opening therethrough opening at its inner end into said hollow interior of said first handle member so as to provide access to said second handle member slidably disposed therein, and a threaded member adjustably threadably disposed in said hub threaded opening for engaging said second handle member incident to holding said second handle member in a selected sliding position of movement, whereby said size of said laterally extending hub is selected to provide a correspondingly sized said threaded opening in said hub to provide an optimum number of threadably interengaged teeth of said threaded hub opening and said threaded member to obviate inadvertent disengagement of said threaded member from said second handle member during use of said luggage cart.
Claim 2
Dependent Claim
351 words
Improvements for a luggage cart of the type having a size-adjustable handle comprised of a telescoped together cooperating pair of a first lower hollow tubular handle member with an upper opening therein in which is slidably disposed a second upper tubular handle member wherein the extent of the extension of said second handle member beyond said first handle member upper opening establishes the size of said handle of said luggage cart, said second upper tubular member having first and second flared ends, said first lower hollow tubular handle member having a first and second ends having a crimped portions therein, said crimps retaining said flared ends of said second tubular member within said first lower hollow tubular member, a hollow cap disposed in covering relation over said first handle member upper opening having a central opening in aligned relation to said upper opening and a cylindrical wall in encircling relation about the upper end of said first handle member and extending in covering relation over said crimps therein, said central opening of said cap being slightly undersized with respect to the upper opening of said first lower handle member, to thereby provide an optimum sliding clearance for the size-adjusting sliding movement of said second upper handle member, a laterally extending hub embodied in said cap wall oriented transverse to the sliding direction of said second handle member, said hub having a threaded opening therethrough opening at its inner end into said hollow interior of said first handle member so as to provide access to said second handle member slidably disposed therein, and a threaded member adjustably threadably disposed in said hub threaded opening for engaging said second handle member incident to holding said second handle member in a selected sliding position of movement, whereby said size of said laterally extending hub is selected to provide a correspondingly sized said threaded opening in said hub to provide an optimum number of threadably interengaged teeth of said threaded hub opening and said threaded member to obviate inadvertent disengagement of said threaded member from said second handle member during use of said luggage cart.
References Cited (Backward Citations)
US2578409A
Cited
FR1509040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-20 | 1994-02-19 | 1994-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-20 | 1998-02-19 | 1998-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-20 | 2002-02-19 | 2002-08-21 | $7700.00 | Window Closed / Lapsed |