Patent US4027771A successfully refreshed from Google Patents.
US4027771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pallet truck for use with fork lift truck
Assignee: Individual
•
Filing: 1975-05-08
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Granted: 1977-06-07
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Expires: 1995-05-08
Abstract
Abstract A pallet truck that may be used for loading or unloading trucks and van trailers under circumstances where no shipping dock, well or ramp is available. These pallet truck forks are constructed and arranged to allow the insertion of the fork tines of a fork lift truck, whereby the pallet truck with a palleted load thereon may be lifted from ground level by the fork lift truck and placed on another level such as in a truck or van trailer, and conversely lowered. The fork truck fork tines are then removed and the pallet truck employed to move the palleted load into its proper position in the truck or van trailer. The pallet truck forks may be constructed for the reception of the fork tines of a fork lift truck from either the front ends thereof or the rear ends thereof. The pallet truck forks may be provided with fork tines for raising a load for the insertion of timbers and the like thereunder, to permit the subsequent insertion of the pallet truck forks under the load for raising and moving the same. This pallet truck design may also be utilized for all conventional pallet truck uses.
Inventors
- 👤 Thomas F. Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:40
CPC Classifications
B; B62; B62B; B62B3/00; B62B3/04; B62B3/06; B62B3/0625
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
174 words
In a pallet truck having a pair of forks for movement under a palleted load, and wherein said forks are provided with movable load rollers and said pallet truck includes means for moving the load rollers between a raised position and a lowered position, the combination comprising: a. each of said forks being hollow and open on at least one of its ends for the insertion of a fork lift into the fork for lifting the pallet truck and moving the same; b. fork lift tine retainer means operatively associated with each of the pallet truck forks for retaining each fork on a fork lift tine inserted into the fork; and, c. said fork lift tine retainer means including a looped member operatively associated with said means for moving the load rollers between a raised position and a lowered position, so as to move the retainer means to an inoperative position when the load rollers are in a raised position, and to an operative position when the load rollers are in a lowered position.
Claim 2
Dependent Claim
174 words
In a pallet truck having a pair of forks for movement under a palleted load, and wherein said forks are provided with movable load rollers and said pallet truck includes means for moving the load rollers between a raised position and a lowered position, the combination comprising: a. each of said forks being hollow and open on at least one of its ends for the insertion of a fork lift into the fork for lifting the pallet truck and moving the same; b. fork lift tine retainer means operatively associated with each of the pallet truck forks for retaining each fork on a fork lift tine inserted into the fork; and, c. said fork lift tine retainer means including a looped member operatively associated with said means for moving the load rollers between a raised position and a lowered position, so as to move the retainer means to an inoperative position when the load rollers are in a raised position, and to an operative position when the load rollers are in a lowered position.
Claim 3
Dependent Claim
161 words
In a pallet truck having a pair of forks for movement under a palleted load, and wherein said forks are provide with movable load rollers and said pallet truck includes means for moving the load rollers between a raised position and a lowered position, the combination comprising: a. each of said forks being hollow and open on at least one of its ends for the insertion of a fork for lift tine into the fork for lifting the pallet truck and moving the same; b. fork lift retainer means operatively associated with each of the pallet truck forks for retaining each fork on a fork lift tine inserted into the fork; c. said means for moving the load rollers between a raised position and a lowered position includes an elongated channel member movably mounted in each of the forks; and, d. said fork lift tine retainer means comprises a cross member fixedly mounted on the rear end of said channel member.
Claim 4
Dependent Claim
161 words
In a pallet truck having a pair of forks for movement under a palleted load, and wherein said forks are provide with movable load rollers and said pallet truck includes means for moving the load rollers between a raised position and a lowered position, the combination comprising: a. each of said forks being hollow and open on at least one of its ends for the insertion of a fork for lift tine into the fork for lifting the pallet truck and moving the same; b. fork lift retainer means operatively associated with each of the pallet truck forks for retaining each fork on a fork lift tine inserted into the fork; c. said means for moving the load rollers between a raised position and a lowered position includes an elongated channel member movably mounted in each of the forks; and, d. said fork lift tine retainer means comprises a cross member fixedly mounted on the rear end of said channel member.
Claim 5
Dependent Claim
161 words
In a pallet truck having a pair of forks for movement under a palleted load, and wherein said forks are provided with movable load rollers and said pallet truck includes means for moving the load rollers between a raised position and a lowered position, the combination comprising: a. each of said forks being hollow and open on at least one of its ends for the insertion of a fork life tine into the fork for lifting the pallet truck and moving the same; b. fork lift tine retainer means operatively associated with each of the pallet truck forks for retaining each fork on a fork lift tine inserted into the fork; c. said means for moving the load rollers between a raised position and lowered position including an elongated channel member movably mounted in each of the forks; and d. each of said channel members including an upwardly turned end portion for guiding a fork lift tine into the channel member.
Claim 6
Dependent Claim
161 words
In a pallet truck having a pair of forks for movement under a palleted load, and wherein said forks are provided with movable load rollers and said pallet truck includes means for moving the load rollers between a raised position and a lowered position, the combination comprising: a. each of said forks being hollow and open on at least one of its ends for the insertion of a fork life tine into the fork for lifting the pallet truck and moving the same; b. fork lift tine retainer means operatively associated with each of the pallet truck forks for retaining each fork on a fork lift tine inserted into the fork; c. said means for moving the load rollers between a raised position and lowered position including an elongated channel member movably mounted in each of the forks; and d. each of said channel members including an upwardly turned end portion for guiding a fork lift tine into the channel member.
Claim 7
Dependent Claim
30 words
A pallet truck as defined in claim 3, wherein: a. said fork lift tine retainer means comprises a spring biased loop member mounted on said upwardly turned channel end portion.
Claim 8
Dependent Claim
162 words
In a pallet truck having a pair of forks for movement under a palleted load, and wherein said forks are provided with movable load rollers and said pallet truck includes means for moving the load rollers between a raised position and a lowered position, the combination comprising: a. each of said forks being hollow and open on at least one of its ends for the insertion of a fork lift tine into the fork for lifting the pallet truck and moving the same; b. fork lift tine retainer means operatively associated with each of the pallet truck forks for retaining each fork on a fork lift tine inserted into the fork; c. said means for moving the load rollers between a raised position and lowered position including an elongated channel member movably mounted in each of the forks; and d. said fork lift tine retainer means comprising a spring biased loop member mounted on each channel member adjacent the rear end thereof.
Claim 9
Dependent Claim
162 words
In a pallet truck having a pair of forks for movement under a palleted load, and wherein said forks are provided with movable load rollers and said pallet truck includes means for moving the load rollers between a raised position and a lowered position, the combination comprising: a. each of said forks being hollow and open on at least one of its ends for the insertion of a fork lift tine into the fork for lifting the pallet truck and moving the same; b. fork lift tine retainer means operatively associated with each of the pallet truck forks for retaining each fork on a fork lift tine inserted into the fork; c. said means for moving the load rollers between a raised position and lowered position including an elongated channel member movably mounted in each of the forks; and d. said fork lift tine retainer means comprising a spring biased loop member mounted on each channel member adjacent the rear end thereof.
Claim 10
Dependent Claim
161 words
In a pallet truck having a pair of forks for movement under a palleted load, and wherein said forks are provided with movable load rollers and said pallet truck includes means for moving the load rollers between a raised position and a lowered position, the combination comprising: a. each of said forks being hollow and open on at least one of its ends for the insertion of a fork lift tine into the fork for lifting the pallet truck and moving the same; b. fork lift tine retainer means operatively associated with each of the pallet truck forks for retaining each fork on a fork lift tine inserted into the fork; c. said means for moving the load rollers between a raised position and lowered position including an elongated channel member movable mounted in each of the forks; and, d. said fork lift tine retainer means comprising a loop member swingably mounted on each channel member adjacent the rear end thereof.
Claim 11
Dependent Claim
161 words
In a pallet truck having a pair of forks for movement under a palleted load, and wherein said forks are provided with movable load rollers and said pallet truck includes means for moving the load rollers between a raised position and a lowered position, the combination comprising: a. each of said forks being hollow and open on at least one of its ends for the insertion of a fork lift tine into the fork for lifting the pallet truck and moving the same; b. fork lift tine retainer means operatively associated with each of the pallet truck forks for retaining each fork on a fork lift tine inserted into the fork; c. said means for moving the load rollers between a raised position and lowered position including an elongated channel member movable mounted in each of the forks; and, d. said fork lift tine retainer means comprising a loop member swingably mounted on each channel member adjacent the rear end thereof.
Claim 12
Dependent Claim
137 words
In a pallet truck having a pair of forks for movement under a palleted load, and wherein said forks are provided with movable load rollers and said pallet truck includes means for moving the load rollers between a raised position and a lowered position, the combination comprising: a. each of said forks being hollow and open on at least one of its ends for the insertion of a fork lift tine into the fork for lifting the pallet truck and moving the same; b. fork lift tine retainer means operatively associated with each of the pallet truck forks for retaining each fork on a fork lift tine inserted into the fork; and, c. each of said forks being open at both ends thereof to allow insertion of a fork lift tine into each fork from either end.
Claim 13
Dependent Claim
137 words
In a pallet truck having a pair of forks for movement under a palleted load, and wherein said forks are provided with movable load rollers and said pallet truck includes means for moving the load rollers between a raised position and a lowered position, the combination comprising: a. each of said forks being hollow and open on at least one of its ends for the insertion of a fork lift tine into the fork for lifting the pallet truck and moving the same; b. fork lift tine retainer means operatively associated with each of the pallet truck forks for retaining each fork on a fork lift tine inserted into the fork; and, c. each of said forks being open at both ends thereof to allow insertion of a fork lift tine into each fork from either end.
Claim 14
Dependent Claim
123 words
In a pallet truck having a pair of forks for movement under a palleted load, and wherein said forks are provided with movable load rollers and said pallet truck includes means for moving the load rollers between a raised position and lowered position, the combination comprising: a. each of said forks being hollow and open on at least one of its ends for the insertion of a fork lift tine into the fork for lifting the pallet truck and moving the same; b. fork lift tine retainer means operatively associated with each of the pallet truck forks for retaining each fork on a fork lift tine inserted into the fork; and c. a fork tine mounted on the front end of each fork.
Claim 15
Dependent Claim
123 words
In a pallet truck having a pair of forks for movement under a palleted load, and wherein said forks are provided with movable load rollers and said pallet truck includes means for moving the load rollers between a raised position and lowered position, the combination comprising: a. each of said forks being hollow and open on at least one of its ends for the insertion of a fork lift tine into the fork for lifting the pallet truck and moving the same; b. fork lift tine retainer means operatively associated with each of the pallet truck forks for retaining each fork on a fork lift tine inserted into the fork; and c. a fork tine mounted on the front end of each fork.
Claim 16
Dependent Claim
22 words
A pallet truck as defined in claim 8, wherein: a. each of the fork tines is detachably mounted on its respective fork.
Claim 17
Dependent Claim
29 words
A pallet truck as defined in claim 8, wherein: a. each of the fork tines is pivotally mounted on its respective fork for movement between inoperative and operative positions.
Claim 18
Dependent Claim
41 words
A pallet truck as defined in claim 1, including: a. a fork tine mounted on the front end of each fork and having a knife blade-like outer end edge offset downwardly from the fork for sliding movement under a palleted load.
Claim 19
Dependent Claim
22 words
A pallet truck as defined in claim 11, wherein: a. each of the fork tines is detachably mounted on its respective fork.
Claim 20
Dependent Claim
29 words
A pallet truck as defined in claim 11, wherein: a. each of the fork tines is pivotally mounted on its respective fork for movement between inoperative and operative positions.
Claim 21
Dependent Claim
41 words
A pallet truck as defined in claim 6, including: a. a fork tine mounted on the front end of each fork and having a knife blade-like outer end edge offset downwardly from the fork for sliding movement under a palleted load.
Claim 22
Dependent Claim
22 words
A pallet truck as defined in claim 14, wherein: a. each of the fork tines is detachably mounted on its respective fork.
Claim 23
Dependent Claim
29 words
A pallet truck as defined in claim 14, wherein: a. each of the fork tines is pivotally mounted on its respective fork for movement between inoperative and operative positions.
Claim 24
Dependent Claim
41 words
A pallet truck as defined in claim 7, including: a. a fork tine mounted on the front end of each fork and having a knife blade-like outer end edge offset downwardly from the fork for sliding movement under a palleted load.
Claim 25
Dependent Claim
22 words
A pallet truck as defined in claim 17, wherein: a. each of the fork tines is detachably mounted on its respective fork.
Claim 26
Dependent Claim
29 words
A pallet ruck as defined in claim 17, wherein: a. each of the fork tines is pivotally mounted on its respective fork for movement between inoperative and operative positions.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-06-06 | 1980-12-06 | 1981-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-06 | 1984-12-06 | 1985-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-06 | 1988-12-06 | 1989-06-07 | $7700.00 | Window Closed / Lapsed |