James M Swanson

US Patent:

42237661, Sep 23, 1980

Filed:

May 30, 1978

Appl. No.:

5/910100

Inventors:

Larry C. Huetsch - Rockford IL
James P. Swanson - Winnebago IL
Stephen E. Nyquist - Cherry Valley IL

Assignee:

Atwood Vacuum Machine Company - Rockford IL

International Classification:

B60T 720

US Classification:

188112R

Abstract:

A trailer is adapted to be hitched to a towing vehicle by a surge brake actuator which includes pivotally interconnected forward and rear units. When the rear unit moves forwardly relative to the forward unit, a plunger assembly is moved to a braking position to actuate a master cylinder and apply the trailer brakes. The disclosure pertains to (1) the construction and operation of the plunger assembly (2) the construction and mounting of the master cylinder (3) a friction lock for holding a breakaway cable in an emergency position when the trailer breaks away from the towing vehicle and (4) a clamping and latching mechanism for releasably coupling the forward unit of the actuator to a hitch ball on the towing vehicle.

US Patent:

40303918, Jun 21, 1977

Filed:

Nov 3, 1975

Appl. No.:

5/627843

Inventors:

James P. Swanson - Winnebago IL
Stephen E. Nyquist - Cherry Valley IL

Assignee:

W. A. Whitney Corporation - Rockford IL

International Classification:

B26D 702
B26F 102

US Classification:

83137

Abstract:

A punch press in which pressure fluid which is introduced into a chamber is used to press a stripper against a workpiece and also to retract a piston which carries a punch. The pressure of the pressure fluid in the chamber is maintained at a substantially constant but selectively adjustable magnitude.

US Patent:

40610640, Dec 6, 1977

Filed:

Dec 1, 1976

Appl. No.:

5/746603

Inventors:

Lee Kindgren - Rockford IL
James P. Swanson - Winnebago IL

Assignee:

W. A. Whitney Corporation - Rockford IL

International Classification:

B26F 102

US Classification:

83368

Abstract:

Punch presses are positioned for punching holes at selected vertical locations in the flanges of I-beams, angle irons and channels by apparatus which utilizes a movable probe to determine the initial position of the presses and which further utilizes a reversible counter and a comparator to stop the presses after they have moved a selected distance from their initial position.

US Patent:

43067344, Dec 22, 1981

Filed:

Jun 29, 1979

Appl. No.:

6/053703

Inventors:

James P. Swanson - Winnebago IL
Larry C. Huetsch - Rockford IL

Assignee:

Atwood Vacuum Machine Company - Rockford IL

International Classification:

B60D 116

US Classification:

280446B

Abstract:

A pivoted linkage is associated with an anti-sway mechanism in such a manner as to enable the mechanism to retard lateral sway of a trailer while preventing the mechanism from restricting forward surging of the trailer. As a result of the linkage, the anti-sway mechanism does not interfere with the operation of a surge brake actuator having pivotally interconnected front and rear units.

US Patent:

42392527, Dec 16, 1980

Filed:

Oct 30, 1979

Appl. No.:

6/089489

Inventors:

Larry C. Huetsch - Rockford IL
James P. Swanson - Winnebago IL
Stephen E. Nyquist - Cherry Valley IL

Assignee:

Atwood Vacuum Machine Company - Rockford IL

International Classification:

B60D 106
B60T 720

US Classification:

280446R

Abstract:

A trailer is adapted to be hitched to a towing vehicle by a surge brake actuator which includes pivotally interconnected forward and rear units. When the rear unit moves forwardly relative to the forward unit, a plunger assembly is moved to a braking position to actuate a master cylinder and apply the trailer brakes. The disclosure pertains to (1) the construction and operation of the plunger assembly (2) the construction and mounting of the master cylinder (3) a friction lock for holding a breakaway cable in an emergency position when the trailer breaks away from the towing vehicle and (4) a clamping and latching mechanism for releasably coupling the forward unit of the actuator to a hitch ball on the towing vehicle.