US3836031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material handling truck apparatus
Assignee: C AND M Mfg CO Inc
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Filing: 1972-06-01
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Granted: 1974-09-17
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Expires: 1992-06-01
Abstract
Abstract A narrow aisle stacker attachment for a material handling truck has a mast and carriage and laterally extensible carrier for picking up and depositing loads in a storage rack. Horizontally extensible supports near the vertically movable carriage balance side moments. A set switch prevents excessive upward carriage movement when a carriage-riding operator is standing. The base has rollers which guide the truck in the narrow aisle. Rollers on the mast guide and steady the mast in aisles. A trolley pick-up automatically connects to a bus bar when the truck enters an aisle for operating the normally battery driven truck from an external power source during in-aisle movement.
Inventors
- 👤 A Weisker
- 👤 R Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:56
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/07; B66F9/072
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
167 words
A non-tracked materials handling truck apparatus for use with a rack and capable of being positioned at any lateral spacing from the rack comprising a base, a vertical mast connected to the base and extending upward therefrom, a carriage movable vertically away from and toward the base, laterally extensible support means mounted on the carriage for engaging a fixed surface of the rack and for supporting the carriage against the surface, a load carrier horizontally extensible from the carriage for lateral reciprocal motion transverse to a forward direction of the truck, a power means positioned on the carriage and connected to the load carrier for causing outward movement thereof, and a control means, rigidly connected to the laterally extensible support means for movement therewith and connected to the power means, for enabling application of power for outward movement of the load carrier only upon the successful engagement within a predetermined lateral spacing defining the range of operable engagement of the fixed surface by the extensible support means.
Claim 2
Dependent Claim
167 words
A non-tracked materials handling truck apparatus for use with a rack and capable of being positioned at any lateral spacing from the rack comprising a base, a vertical mast connected to the base and extending upward therefrom, a carriage movable vertically away from and toward the base, laterally extensible support means mounted on the carriage for engaging a fixed surface of the rack and for supporting the carriage against the surface, a load carrier horizontally extensible from the carriage for lateral reciprocal motion transverse to a forward direction of the truck, a power means positioned on the carriage and connected to the load carrier for causing outward movement thereof, and a control means, rigidly connected to the laterally extensible support means for movement therewith and connected to the power means, for enabling application of power for outward movement of the load carrier only upon the successful engagement within a predetermined lateral spacing defining the range of operable engagement of the fixed surface by the extensible support means.
Claim 3
Dependent Claim
29 words
The truck apparatus of claim 1 wherein the laterally extensible support means is mounted on the carriage below the carrier and is reciprocably extensible for engaging said fixed surface.
Claim 4
Dependent Claim
38 words
The truck apparatus of claim 2 wherein the load carrier is horizontally extensible from the support means for lateral reciprocal motion relative thereto and connected to a power means on the support means for causing outward movement thereof.
Claim 5
Dependent Claim
42 words
The truck apparatus of claim 1 wherein the outward extremity of the laterally extensible support means is slightly movable relative thereto and wherein the control means is connected to the outward extremity and senses the depression thereof when contacting said fixed surface.
Claim 6
Dependent Claim
166 words
A non-tracked materials handling truck apparatus for use with a rack and capable of being positioned at any lateral spacing from the rack comprising a base, a vertical mast connected to the base and extending upward therefrom, a carriage movable vertically away from and toward the base, laterally extensible support means mounted on the carriage for engaging a fixed surface of the rack and for supporting the carriage against the surface, a load carrier mounted above said extensible support means and horizontally extensible therefrom for lateral reciprocal motion transverse to a forward direction of the truck, a power means positioned on the support means and connected to the load carrier for causing outward movement thereof, and a control means, positioned on the laterally extensible support means for movement therewith and connected to the power means for enabling application of power for outward movement of the load carrier only upon the successful engagement of the fixed surface within a predetermined lateral spacing by the extensible support means.
Claim 7
Dependent Claim
166 words
A non-tracked materials handling truck apparatus for use with a rack and capable of being positioned at any lateral spacing from the rack comprising a base, a vertical mast connected to the base and extending upward therefrom, a carriage movable vertically away from and toward the base, laterally extensible support means mounted on the carriage for engaging a fixed surface of the rack and for supporting the carriage against the surface, a load carrier mounted above said extensible support means and horizontally extensible therefrom for lateral reciprocal motion transverse to a forward direction of the truck, a power means positioned on the support means and connected to the load carrier for causing outward movement thereof, and a control means, positioned on the laterally extensible support means for movement therewith and connected to the power means for enabling application of power for outward movement of the load carrier only upon the successful engagement of the fixed surface within a predetermined lateral spacing by the extensible support means.
Claim 8
Dependent Claim
50 words
The truck apparatus of claim 5 wherein the load carrier comprises a fork support, movably mounted on said laterally extensible support means for lateral reciprocal motion relative thereto, and a fork, cantilevered from said fork support, for picking up and depositing materials transversely to a forward direction of the truck.
Claim 9
Dependent Claim
150 words
Materials handling truck apparatus comprising a base, a vertical mast connected to the base and extending upward therefrom, a carriage movable vertically away from and toward the base, laterally extensible support means mounted on the carriage for engaging a fixed surface and for supporting the carriage against the surface, a load carrier mounted above said extensible support means and horizontally extensible therefrom for lateral reciprocal motion transverse to a forward direction of the truck, a power means mounted on the support means and connected to the load carrier for causing outward movement thereof, and a valve connected to the power means and rigidly connected to the laterally extensible support means for movement therewith, said valve, within a predetermined range of positions corresponding to the normal engageMent positions between said extensible support and said fixed surface, allowing hydraulic fluid to pass through said valve to cause movement of said load carrier.
Claim 10
Dependent Claim
150 words
Materials handling truck apparatus comprising a base, a vertical mast connected to the base and extending upward therefrom, a carriage movable vertically away from and toward the base, laterally extensible support means mounted on the carriage for engaging a fixed surface and for supporting the carriage against the surface, a load carrier mounted above said extensible support means and horizontally extensible therefrom for lateral reciprocal motion transverse to a forward direction of the truck, a power means mounted on the support means and connected to the load carrier for causing outward movement thereof, and a valve connected to the power means and rigidly connected to the laterally extensible support means for movement therewith, said valve, within a predetermined range of positions corresponding to the normal engageMent positions between said extensible support and said fixed surface, allowing hydraulic fluid to pass through said valve to cause movement of said load carrier.
Claim 11
Dependent Claim
177 words
A non-tracked materials handling truck apparatus for use with a rack and capable of being positioned at any lateral spacing from the rack comprising a base, a vertical mast connected to the base and extending upward therefrom, a carriage movable vertically away from and toward the base, laterally extensible support means mounted on the carriage for engaging a fixed surface of the rack and for supporting the carriage against the surface, a load carrier mounted above said extensible support means and horizontally extensible therefrom for lateral reciprocal motion transverse to a forward direction of the truck, a power means mounted on the support means and connected to the load carrier for causing outward movement thereof, and a control means rigidly connected to the laterally extensible support means for movement therewith and connected to the power means for allowing power to pass through said control means to cause movement of said load carrier only upon the successful engagement within a predetermined lateral spacing defining the range of operable engagement of the fixed surface by the extensible support means.
Claim 12
Dependent Claim
177 words
A non-tracked materials handling truck apparatus for use with a rack and capable of being positioned at any lateral spacing from the rack comprising a base, a vertical mast connected to the base and extending upward therefrom, a carriage movable vertically away from and toward the base, laterally extensible support means mounted on the carriage for engaging a fixed surface of the rack and for supporting the carriage against the surface, a load carrier mounted above said extensible support means and horizontally extensible therefrom for lateral reciprocal motion transverse to a forward direction of the truck, a power means mounted on the support means and connected to the load carrier for causing outward movement thereof, and a control means rigidly connected to the laterally extensible support means for movement therewith and connected to the power means for allowing power to pass through said control means to cause movement of said load carrier only upon the successful engagement within a predetermined lateral spacing defining the range of operable engagement of the fixed surface by the extensible support means.
Claim 13
Dependent Claim
174 words
A non-tracked materials handling truck apparatus for use with a rack and capable of being positioned at any lateral spacing from the rack comprising a base, a vertical mast connected to the base and extending upward therefrom, a carriage movable vertically away from and toward the base, laterally extensible support means mounted on the carriage for engaging a fixed surface of the rack and for supporting the carriage against the surface, a load carrier mounted above the carriage and horizontally extensible therefrom for lateral reciprocal motion transverse to a forward direction of the truck, a power means mounted on the carriage and connected to the load carrier for causing outward movement thereof, and a control means rigidly connected to the laterally extensible support means for movement therewith and connected to the power means for allowing power to pass through said control means to cause movement of said load carrier only upon the successful engagement within a predetermined lateral spacing defining the range of operable engagement of the fixed surface by the extensible support means.
Claim 14
Dependent Claim
174 words
A non-tracked materials handling truck apparatus for use with a rack and capable of being positioned at any lateral spacing from the rack comprising a base, a vertical mast connected to the base and extending upward therefrom, a carriage movable vertically away from and toward the base, laterally extensible support means mounted on the carriage for engaging a fixed surface of the rack and for supporting the carriage against the surface, a load carrier mounted above the carriage and horizontally extensible therefrom for lateral reciprocal motion transverse to a forward direction of the truck, a power means mounted on the carriage and connected to the load carrier for causing outward movement thereof, and a control means rigidly connected to the laterally extensible support means for movement therewith and connected to the power means for allowing power to pass through said control means to cause movement of said load carrier only upon the successful engagement within a predetermined lateral spacing defining the range of operable engagement of the fixed surface by the extensible support means.
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) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |