Patent US4515085A successfully refreshed from Google Patents.
US4515085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed control apparatus
Assignee: SI Handling Systems Inc
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Filing: 1983-07-15
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Granted: 1985-05-07
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Expires: 2003-07-15
Abstract
Abstract Apparatus is disclosed for controlling the angular position of a drive wheel on a driverless vehicle. The apparatus includes a speed control device movable between two positions and having a lost-motion coupling to a shock absorber so that the device moves rapidly toward the second position for part of its movement and then moves slowly for the remainder of its movement.
Inventors
- 👤 Peter H. Rohrbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:38
CPC Classifications
B; B61; B61B; B61B13/00; B61B13/12; B61B13/125; B61K; B61K7/00; B61K7/02; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2101; Y10T74/2102
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
111 words
Apparatus for controlling the angular position of a drive wheel for a driverless vehicle comprising first and second speed control devices supported for pivotable movement between a first position wherein said first device is adapted to cause deceleration movement of a drive wheel and a second position wherein said second device is adapted to allow acceleration movement of a drive wheel, motor means coupled to said devices for moving said devices between said positions, and means associated with said devices so that said devices move rapidly toward said second position by said motor means for the initial part of their movement and then move slowly for the remainder of their movement.
Claim 2
Dependent Claim
111 words
Apparatus for controlling the angular position of a drive wheel for a driverless vehicle comprising first and second speed control devices supported for pivotable movement between a first position wherein said first device is adapted to cause deceleration movement of a drive wheel and a second position wherein said second device is adapted to allow acceleration movement of a drive wheel, motor means coupled to said devices for moving said devices between said positions, and means associated with said devices so that said devices move rapidly toward said second position by said motor means for the initial part of their movement and then move slowly for the remainder of their movement.
Claim 3
Dependent Claim
22 words
Apparatus in accordance with claim 1 wherein said last mentioned means includes a lost-motion connection between said devices and a shock absorber.
Claim 4
Dependent Claim
20 words
Apparatus in accordance with claim 1 wherein said devices includes a pair of plates having adjacent ends pivotably coupled together.
Claim 5
Dependent Claim
29 words
Apparatus in accordance with claim 3 wherein the pivotable coupling of said plates includes a member on one plate disposed in a longitudinally extending slot on the other plate.
Claim 6
Dependent Claim
18 words
Apparatus in accordance with claim 1 wherein said motor means is coupled to said devices by toggle links.
Claim 7
Dependent Claim
33 words
Apparatus in accordance with claim 1 wherein one of said devices is pivoted at one end, guide means intermediate the ends of said one device for maintaining the horizontal disposition of said device.
Claim 8
Dependent Claim
32 words
Apparatus in accordance with claim 1 wherein said devices have converging surfaces in their first position, said surfaces being aligned in their second position, and said devices being pivoted about vertical axes.
Claim 9
Dependent Claim
109 words
Apparatus for controlling the angular position of a drive wheel for a driverless vehicle comprising a base, first and second speed control devices supported on said base for pivotable movement about a vertical axis between a first position and a second position, motor means coupled to said devices for moving said devices between said positions, means associated with said devices so that said devices move rapidly toward said second position by said motor means for the initial part of their movement and then move slowly for the remainder of their movement, said devices having converging surfaces in their first position, and said surfaces being aligned in their second position.
Claim 10
Dependent Claim
109 words
Apparatus for controlling the angular position of a drive wheel for a driverless vehicle comprising a base, first and second speed control devices supported on said base for pivotable movement about a vertical axis between a first position and a second position, motor means coupled to said devices for moving said devices between said positions, means associated with said devices so that said devices move rapidly toward said second position by said motor means for the initial part of their movement and then move slowly for the remainder of their movement, said devices having converging surfaces in their first position, and said surfaces being aligned in their second position.
Claim 11
Dependent Claim
22 words
Apparatus in accordance with claim 8 wherein said last mentioned means includes a lost-motion connection between said devices and a shock absorber.
Claim 12
Dependent Claim
20 words
Apparatus in accordance with claim 8 wherein said devices include a pair of plates having adjacent ends pivotably coupled together.
Claim 13
Dependent Claim
29 words
Apparatus in accordance with claim 10 wherein the pivotable coupling of said plates includes a member on one plate disposed in a longitudinally extending slot on the other plate.
Claim 14
Dependent Claim
18 words
Apparatus in accordance with claim 8 wherein said motor means is coupled to said devices by toggle links.
Claim 15
Dependent Claim
26 words
Apparatus in accordance with claim 8 wherein said last mentioned means includes a shock absorber spaced from and adapted to be contacted by said motor 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) | 1988-05-06 | 1988-11-05 | 1989-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-06 | 1992-11-05 | 1993-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-06 | 1996-11-05 | 1997-05-07 | $7700.00 | Window Closed / Lapsed |