US3647236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Handtruck attachment
Assignee: Individual
•
Filing: 1970-03-09
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Granted: 1972-03-07
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Expires: 1990-03-09
Abstract
Abstract A handtruck body has a front end mounted on an axle and a pair of wheels about which the body is tilted for handling a load. An attachment has a front end pivotally connectable to the axle, a wheeled rear end and transversely slideable members having upstanding projections. The attachment is adapted to fit wholly within the body and be retained therein, yet can be released to swing downwardly and the projections can be foot manipulated for sliding the members laterally for engagement under the body to support it in tilted position.
Inventors
- 👤 Leonard L Hayes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:56
CPC Classifications
B; B62; B62B; B62B1/00; B62B1/002
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
323 words
In a handtruck having a body supported at one end on ground wheels and tiltable thereabout; the combination of a wheeled attachment pivotally connectable to the body and having transversely movable members engageable with the body for supporting the same in a tilted position, said body including transversely spaced upper and lower sidepieces and spaced struts joined at their ends to the upper and lower sidepieces respectively, said sidepieces defining side portions with handles on the rear ends thereof, the upper sidepieces being interconnected by crosspieces to provide a load-supporting bed, mounting plates interconnecting the front ends of the sidepieces, an axle mounted on the plates having ends extending laterally beyond the side portions, said ground wheels being mounted on the axle ends, and said attachment including a frame having side members transversely spaced to fit closely within the side portions, the front ends of the frame side members being pivotally connected to the axle for swinging thereabout between a position disposing the attachment wholly within the body between the side portions thereof and a swung down position in which the rearward portion of the frame is below the lower sidepieces when the body is tilted, said transversely movable members being transversely aligned and having outer ends projectable beyond the frame side members for engaging under the lower sidepieces for supporting the body in tilted position, a transverse housing in which the movable members are housed, said housing having ends secured to the frame side members and so disposed thereon that the projecting ends of the transversely movable members engage under the lower sidepieces substantially in alignment with a pair of the struts so that a major portion of the load on the bed is transmitted directly to the attachment frame, and holding means mounted on the body engageable with the attachment frame for holding the attachment disposed wholly within the body and manipulatable for release of the attachment to swung down position.
Claim 2
Dependent Claim
323 words
In a handtruck having a body supported at one end on ground wheels and tiltable thereabout; the combination of a wheeled attachment pivotally connectable to the body and having transversely movable members engageable with the body for supporting the same in a tilted position, said body including transversely spaced upper and lower sidepieces and spaced struts joined at their ends to the upper and lower sidepieces respectively, said sidepieces defining side portions with handles on the rear ends thereof, the upper sidepieces being interconnected by crosspieces to provide a load-supporting bed, mounting plates interconnecting the front ends of the sidepieces, an axle mounted on the plates having ends extending laterally beyond the side portions, said ground wheels being mounted on the axle ends, and said attachment including a frame having side members transversely spaced to fit closely within the side portions, the front ends of the frame side members being pivotally connected to the axle for swinging thereabout between a position disposing the attachment wholly within the body between the side portions thereof and a swung down position in which the rearward portion of the frame is below the lower sidepieces when the body is tilted, said transversely movable members being transversely aligned and having outer ends projectable beyond the frame side members for engaging under the lower sidepieces for supporting the body in tilted position, a transverse housing in which the movable members are housed, said housing having ends secured to the frame side members and so disposed thereon that the projecting ends of the transversely movable members engage under the lower sidepieces substantially in alignment with a pair of the struts so that a major portion of the load on the bed is transmitted directly to the attachment frame, and holding means mounted on the body engageable with the attachment frame for holding the attachment disposed wholly within the body and manipulatable for release of the attachment to swung down position.
Claim 3
Dependent Claim
89 words
The combination according to claim 1 in which said transversely aligned members are angle irons having upstanding manipulatable projections, and said housing is an angle iron disposed in covering relation to the angle irons and having slots through which the projections extend, whereby an operator of the handtruck can with one hand hold the body and with the other hand release the attachment to swing down, after which the projections can be manipulated by foot for disposing the ends of the angle irons for engagement with the lower sidepieces.
Claim 4
Dependent Claim
191 words
An attachment for a handtruck having a body with depending side portions supported at the forward ends thereof on ground wheels and tiltable between a position in which the body can rest on the ground and a position in which the body is raised from the ground, said attachment including a wheeled frame pivotally connected to the forward ends of the side portions in trailing relation thereto and swingable to a position wholly within said body between said side portions, and releasable retaining means supported on the body engageable with the frame for holding the frame positioned within the body for use of the handtruck in conventional manner, release of the retaining means permitting the frame to swing to a position in which a portion of the frame is disposed below said side portions when said body is raised from the ground, and transversely movable members mounted on said frame, said movable members being extendable laterally beyond the sides of the frame for engagement under said side portions for supporting said body in raised position and retractable for permitting the frame to be swung to the aforesaid position within the body.
Claim 5
Dependent Claim
191 words
An attachment for a handtruck having a body with depending side portions supported at the forward ends thereof on ground wheels and tiltable between a position in which the body can rest on the ground and a position in which the body is raised from the ground, said attachment including a wheeled frame pivotally connected to the forward ends of the side portions in trailing relation thereto and swingable to a position wholly within said body between said side portions, and releasable retaining means supported on the body engageable with the frame for holding the frame positioned within the body for use of the handtruck in conventional manner, release of the retaining means permitting the frame to swing to a position in which a portion of the frame is disposed below said side portions when said body is raised from the ground, and transversely movable members mounted on said frame, said movable members being extendable laterally beyond the sides of the frame for engagement under said side portions for supporting said body in raised position and retractable for permitting the frame to be swung to the aforesaid position within the body.
Claim 6
Dependent Claim
63 words
The attachment according to claim 3 in which said frame includes side members having front ends pivotally connected close to said side portions and rear ends interconnected by a traNsverse rear member of slightly less length than the distance between said side portions so that the frame fits closely between the side portions, and wheels on the frame positionable therewith within said body.
Claim 7
Dependent Claim
48 words
The attachment according to claim 3 in which the movable members are mounted for sliding transversely of the frame, and upstanding means on the members engageable by an extremity of the operator of the handtruck for manipulating and moving the members while holding the body with another extremity.
Claim 8
Dependent Claim
41 words
The attachment according to claim 5 in which the movable members are transversely aligned and disposed within a transverse housing having ends secured to intermediate portions of the frame side members, said housing having slots through which said upstanding means extend.
Claim 9
Dependent Claim
36 words
The combination according to claim 6 in which said housing is an angle iron having legs disposed with the ends thereof engaging the frame side members, and said movable members are angle irons similarly disposed therewithin.
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) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |