US3679225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand truck
Assignee: Pioneer Liquor Co Inc
•
Filing: 1969-04-24
•
Granted: 1972-07-25
•
Expires: 1989-04-24
Abstract
Abstract This hand truck provides an adaptor carriage for converting a two-wheel hand truck of the type having a carrying frame supported by a pair of wheels at one end and including a pusher stem at the other end, into a four-wheel truck in one simple operation. The adaptor carriage includes an axle having a ground wheel at each end, an adaptor unit mounted on the axle and an elongate pulling handle. The adaptor unit includes a sleeve having a pin transversely mounted thereon and interfitting the pusher stem in pivotal relation. The elongate handle is pivotally mounted to the adaptor unit.
Inventors
- 👤 Merle B Mckinney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:50
CPC Classifications
B; B62; B62B; B62B1/00; B62B1/002
Claims Analysis
Total Claims: 44
Claim 1
Independent Claim
169 words
A hand truck, comprising: a. a carrying frame including: 1. ground wheels mounted at one end of the frame, and 2. a pusher stem attached to the other end of the frame in depending relation to said frame, and b. an adaptor carriage including: 1. an axle, 2. a ground wheel mounted on the axle, 3. an elongate handle having a hand grip portion at its remote end, 4. adaptor means detachably mounting the carrying frame to the axle, and mounting the elongate handle to the axle, and 5. the adaptor means receiving the pusher stem in pivotal relation to permit relative rotation of the adaptor carriage and the carrying frame about the pusher stem, c. the adapTor means including an elongate element projecting transversely of the axle and interfitting the pusher stem in axially separable relation, d. the adaptor including pivot means carried by the axle and mounting the elongate handle in pivotal relation to the axle to permit movement of the handle relative to the elongate element.
Claim 2
Dependent Claim
169 words
A hand truck, comprising: a. a carrying frame including: 1. ground wheels mounted at one end of the frame, and 2. a pusher stem attached to the other end of the frame in depending relation to said frame, and b. an adaptor carriage including: 1. an axle, 2. a ground wheel mounted on the axle, 3. an elongate handle having a hand grip portion at its remote end, 4. adaptor means detachably mounting the carrying frame to the axle, and mounting the elongate handle to the axle, and 5. the adaptor means receiving the pusher stem in pivotal relation to permit relative rotation of the adaptor carriage and the carrying frame about the pusher stem, c. the adapTor means including an elongate element projecting transversely of the axle and interfitting the pusher stem in axially separable relation, d. the adaptor including pivot means carried by the axle and mounting the elongate handle in pivotal relation to the axle to permit movement of the handle relative to the elongate element.
Claim 3
Dependent Claim
23 words
a pusher stem attached to the other end of the frame in depending relation to said frame, and b. an adaptor carriage including:
Claim 4
Dependent Claim
23 words
a pusher stem attached to the other end of the frame in depending relation to said frame, and b. an adaptor carriage including:
Claim 5
Dependent Claim
7 words
a ground wheel mounted on the axle,
Claim 6
Dependent Claim
7 words
a ground wheel mounted on the axle,
Claim 7
Dependent Claim
9 words
A hand truck comprising: a. a carrying frame including:
Claim 8
Dependent Claim
9 words
A hand truck comprising: a. a carrying frame including:
Claim 9
Dependent Claim
17 words
a pusher stem attached to the other end of the frame, and b. an adaptor carriage including:
Claim 10
Dependent Claim
17 words
a pusher stem attached to the other end of the frame, and b. an adaptor carriage including:
Claim 11
Dependent Claim
7 words
a ground wheel mounted on the axle,
Claim 12
Dependent Claim
7 words
a ground wheel mounted on the axle,
Claim 13
Dependent Claim
17 words
a pusher stem attached to the other end of the frame, and b. an adaptor carriage including:
Claim 14
Dependent Claim
17 words
a pusher stem attached to the other end of the frame, and b. an adaptor carriage including:
Claim 15
Dependent Claim
9 words
a pair of ground wheels mounted on the axle,
Claim 16
Dependent Claim
9 words
a pair of ground wheels mounted on the axle,
Claim 17
Dependent Claim
62 words
a pin fixedly attached and projecting transversely from the sleeve means, the pin interfitting the pusher stem in axially separable relation, d. the adaptor means also including pivot means carried by the sleeve means, the pivot means including relatively rotating journal members, one of the journal members being attached to the elongate handle to provide rotation thereof relative to the sleeve means.
Claim 18
Dependent Claim
62 words
a pin fixedly attached and projecting transversely from the sleeve means, the pin interfitting the pusher stem in axially separable relation, d. the adaptor means also including pivot means carried by the sleeve means, the pivot means including relatively rotating journal members, one of the journal members being attached to the elongate handle to provide rotation thereof relative to the sleeve means.
Claim 19
Dependent Claim
45 words
a pivot means including a rivet having a shank and a head, the rivet being fixedly attached to the sleeve by the head, the shank projecting transversely of the sleeve to provide a pivot pin interfitting the hollow pusher stem in axially separable relation, and
Claim 20
Dependent Claim
45 words
a pivot means including a rivet having a shank and a head, the rivet being fixedly attached to the sleeve by the head, the shank projecting transversely of the sleeve to provide a pivot pin interfitting the hollow pusher stem in axially separable relation, and
Claim 21
Dependent Claim
46 words
journal means interconnecting the elongate handle in pivotal relation to the sleeve, the journal means including a pair of spaced journal members having a journal pin mounted therebetween and a collar rotatively mounted on the journal pin, the collar being fixedly attached to the elongate handle.
Claim 22
Dependent Claim
46 words
journal means interconnecting the elongate handle in pivotal relation to the sleeve, the journal means including a pair of spaced journal members having a journal pin mounted therebetween and a collar rotatively mounted on the journal pin, the collar being fixedly attached to the elongate handle.
Claim 23
Dependent Claim
9 words
A hand truck comprising: a. a carrying frame including:
Claim 24
Dependent Claim
9 words
A hand truck comprising: a. a carrying frame including:
Claim 25
Dependent Claim
12 words
an elongate handle having a hand grip portion at its remote end,
Claim 26
Dependent Claim
12 words
an elongate handle having a hand grip portion at its remote end,
Claim 27
Dependent Claim
12 words
an elongate handle having a hand grip portion at its remote end,
Claim 28
Dependent Claim
12 words
an elongate handle having a hand grip portion at its remote end,
Claim 29
Dependent Claim
12 words
an elongate handle having a hand grip portion at its remote end,
Claim 30
Dependent Claim
12 words
an elongate handle having a hand grip portion at its remote end,
Claim 31
Dependent Claim
19 words
adaptor means detachably mounting the carrying frame to the axle, and mounting the elongate handle to the axle, and
Claim 32
Dependent Claim
19 words
adaptor means detachably mounting the carrying frame to the axle, and mounting the elongate handle to the axle, and
Claim 33
Dependent Claim
19 words
adaptor means detachably mounting the carrying frame to the axle, and mounting the elongate handle to the axle, and
Claim 34
Dependent Claim
19 words
adaptor means detachably mounting the carrying frame to the axle, and mounting the elongate handle to the axle, and
Claim 35
Dependent Claim
19 words
adaptor means detachably mounting the carrying frame to the axle, and mounting the elongate handle to the axle, and
Claim 36
Dependent Claim
19 words
adaptor means detachably mounting the carrying frame to the axle, and mounting the elongate handle to the axle, and
Claim 37
Dependent Claim
22 words
the adaptor means receiving the pusher stem in pivotal relation to permit relative rotation of the adaptor carriage and the carrying frame,
Claim 38
Dependent Claim
22 words
the adaptor means receiving the pusher stem in pivotal relation to permit relative rotation of the adaptor carriage and the carrying frame,
Claim 39
Dependent Claim
27 words
the adaptor means receiving the pusher stem in pivotal relation to permit relative rotation of the adaptor carriage and the carrying frame, c. the adaptor means including:
Claim 40
Dependent Claim
27 words
the adaptor means receiving the pusher stem in pivotal relation to permit relative rotation of the adaptor carriage and the carrying frame, c. the adaptor means including:
Claim 41
Dependent Claim
80 words
the adaptor means receiving the pusher stem in pivotal relation to permit relative rotation of the adaptor carriage and the carrying frame about the pusher stem, c. the adapTor means including an elongate element projecting transversely of the axle and interfitting the pusher stem in axially separable relation, d. the adaptor including pivot means carried by the axle and mounting the elongate handle in pivotal relation to the axle to permit movement of the handle relative to the elongate element.
Claim 42
Dependent Claim
80 words
the adaptor means receiving the pusher stem in pivotal relation to permit relative rotation of the adaptor carriage and the carrying frame about the pusher stem, c. the adapTor means including an elongate element projecting transversely of the axle and interfitting the pusher stem in axially separable relation, d. the adaptor including pivot means carried by the axle and mounting the elongate handle in pivotal relation to the axle to permit movement of the handle relative to the elongate element.
Claim 43
Dependent Claim
21 words
the pusher stem being hollow and depending downwardly from the frame in the operative position, and c. the adaptor means including:
Claim 44
Dependent Claim
21 words
the pusher stem being hollow and depending downwardly from the frame in the operative position, and c. the adaptor means including:
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) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |