US3893728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material handling apparatus
Assignee: Individual
•
Filing: 1973-11-19
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Granted: 1975-07-08
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Expires: 1993-11-19
Abstract
Abstract Material handling apparatus having a seat which is mounted on a swinging arm for movement from a forwardly-facing position to a rearwardly-facing position.
Inventors
- 👤 Vaino J Holopainen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:37
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/02; B60N2/04; B60N2/14; B60N2/143; E; E02; E02F; E02F9/00; E02F9/16; E02F9/166
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
239 words
Material handling apparatus, comprising: a. a vehicle body having a substantial horizontal deck longitudinally of the body, b. a pair of spaced, parallel fenders extending longitudinally of the body, one fender being located on each side of the deck, c. a seat mounted above the deck between the fenders, d. a support arm pivoted at one end to a fender for swinging movement through an angle of approximately 90* in a horizontal plane below the level of the bottom of the seat, the other end of the arm being pivotally attached to the bottom of the seat at the center front thereof, and e. means to cause the seat to rotate through an angle of 180* when the arm swings through its angle of 90*, the means also serving to cause the seat to move a substantial distance longitudinally as it pivots through its angle of 180* from a forwardly-directed position were the operator has access to the driving controls of the vehicle to a rearwardly-directed position where the operator has access to handling controls of the vehicle, the means consisting of a control arm pivotally connected at one end to the same fender to which the support arm is pivoted, but at a point spaced forwardly a substantial distance from the connection of the support arm, the other end of the control arm being pivotally connected to the bottom of the seat at the center of one side.
Claim 2
Dependent Claim
239 words
Material handling apparatus, comprising: a. a vehicle body having a substantial horizontal deck longitudinally of the body, b. a pair of spaced, parallel fenders extending longitudinally of the body, one fender being located on each side of the deck, c. a seat mounted above the deck between the fenders, d. a support arm pivoted at one end to a fender for swinging movement through an angle of approximately 90* in a horizontal plane below the level of the bottom of the seat, the other end of the arm being pivotally attached to the bottom of the seat at the center front thereof, and e. means to cause the seat to rotate through an angle of 180* when the arm swings through its angle of 90*, the means also serving to cause the seat to move a substantial distance longitudinally as it pivots through its angle of 180* from a forwardly-directed position were the operator has access to the driving controls of the vehicle to a rearwardly-directed position where the operator has access to handling controls of the vehicle, the means consisting of a control arm pivotally connected at one end to the same fender to which the support arm is pivoted, but at a point spaced forwardly a substantial distance from the connection of the support arm, the other end of the control arm being pivotally connected to the bottom of the seat at the center of one side.
Claim 3
Dependent Claim
31 words
Material handling apparatus as recited in claim 1, wherein the support arm and the control arm swing in vertically-spaced planes, so that they do not interfere with one another during swinging.
Claim 4
Dependent Claim
41 words
Material handling apparatus as recited in claim 1, wherein the point of attachment of the support arm to the seat always remains at one side of the control arm during the movement of the seat from one position to the other.
Claim 5
Dependent Claim
25 words
Material handling apparatus as recited in claim 1, wherein, the control arm is provided with a threaded coupling to permit its length to be adjusted.
Claim 6
Dependent Claim
60 words
Material handling apparatus as recited in claim 1, wherein the seat consists of upper and lower portions, the operator occupying the upper portion and the arms being connected to the lower portion, there being a slidable connection between the portions for adjustment longitudinally of the vehicle body, and means to lock the portions in a selected position of relative adjustment.
Claim 7
Dependent Claim
30 words
Material handling apparatus as recited in claim 1, wherein detent means is provided in association with the arm to lock the arm selectively at either end of its swinging movement.
Claim 8
Dependent Claim
65 words
Material handling apparatus as recited in claim 6, wherein the detent means consists of a horizontal apertured quadrant plate fastened to the fender and underlying the portion of the arm which is connected to the fender and of a vertically movable detent mounted in the arm and located to be accessible to the operator for movement in and out of the aperture in the plate.
Claim 9
Dependent Claim
87 words
Material handling apparatus as recited in claim 1, wherein the seat is padded and provided with a vertical back rest, wherein the seat has a generally rectangular horizontal portion with a front edge, a rear edge from which the back rest extends, and two side edges, wherein the point of attachment of the support arm to the seat is adjacent the center of the front edge, and wherein the point of attachment of the control arm to the seat is adjacent the center of a side edge.
Claim 10
Dependent Claim
22 words
Material handling apparatus as recited in claim 1, wherein the fenders are provided with headlights, some directed forwardly and some directed rearwardly.
Claim 11
Dependent Claim
34 words
Material handling apparatus as recited in claim 1, wherein the support arm is located a substantial distance above the deck and is the sole support for the seat and the weight of the operator.
Claim 12
Dependent Claim
62 words
Material handling apparatus as recited in claim 1, wherein a vertical pintle extends downwardly from the seat and the said other end of the support arm is provided with an integral bushing fitting around the pintle, wherein the main part of the support arm extends at an obtuse angle to the axis of the pintle and an acute angle to the deck.
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) | 1978-07-07 | 1979-01-06 | 1979-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-07 | 1983-01-06 | 1983-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-07 | 1987-01-06 | 1987-07-08 | $7700.00 | Window Closed / Lapsed |